JP4004459B2 - Air conditioner - Google Patents

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JP4004459B2
JP4004459B2 JP2003400465A JP2003400465A JP4004459B2 JP 4004459 B2 JP4004459 B2 JP 4004459B2 JP 2003400465 A JP2003400465 A JP 2003400465A JP 2003400465 A JP2003400465 A JP 2003400465A JP 4004459 B2 JP4004459 B2 JP 4004459B2
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air
wind direction
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flow path
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大塚　　雅生
白市　　幸茂
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本発明は、筐体内に取り込まれた空気を調和して室内に送出する空気調和機に関する。 The present invention relates to an air conditioner that harmonizes air taken into a housing and sends it out indoors .

図４７は、特願２００２−２６６４３７号に示される従来の送風装置である空気調和機の室内機を示す側面断面図である。空気調和機の室内機１は通常、使用者の身長よりも高い位置に配置されており、キャビネット２により本体部が保持されている。キャビネット２は後方側面に爪部（不図示）が設けられ、室内の側壁Ｗ１に取り付けられた取付板（不図示）に該爪部を係合することにより支持される。   FIG. 47 is a side cross-sectional view showing an indoor unit of an air conditioner that is a conventional air blower disclosed in Japanese Patent Application No. 2002-266437. The indoor unit 1 of an air conditioner is normally disposed at a position higher than the height of the user, and the main body is held by the cabinet 2. The cabinet 2 is provided with a claw portion (not shown) on the rear side surface and is supported by engaging the claw portion with a mounting plate (not shown) attached to the indoor side wall W1.

キャビネット２には上面側と前面側に吸込口４が設けられたフロントパネル３が着脱自在に取り付けられている。フロントパネル３の下端部とキャビネット２の下端部との間隙には、室内機１の幅方向に延びる略矩形の吹出口５が形成されている。   A front panel 3 provided with suction ports 4 on the upper surface side and the front surface side is detachably attached to the cabinet 2. A substantially rectangular air outlet 5 extending in the width direction of the indoor unit 1 is formed in the gap between the lower end of the front panel 3 and the lower end of the cabinet 2.

室内機１の内部には、吸込口４から吹出口５に連通する送風経路６が形成されている。送風経路６内には空気を送出する送風ファン７が配されている。フロントパネル３に対向する位置には、吸込口４から吸い込まれた空気に含まれる塵埃を捕集・除去するエアフィルタ８が設けられている。送風経路６中の送風ファン７とエアフィルタ８との間には、室内熱交換器９が配置されている。   Inside the indoor unit 1, a blower path 6 that communicates from the suction port 4 to the blowout port 5 is formed. A blower fan 7 that sends out air is disposed in the blower path 6. An air filter 8 that collects and removes dust contained in the air sucked from the suction port 4 is provided at a position facing the front panel 3. An indoor heat exchanger 9 is disposed between the blower fan 7 and the air filter 8 in the blower path 6.

室内熱交換器９は屋外に配される圧縮機（不図示）に接続されており、圧縮機の駆動により冷凍サイクルが運転される。冷凍サイクルの運転によって冷房時には室内熱交換器９が周囲温度よりも低温に冷却される。また、暖房時には、室内熱交換器９が周囲温度よりも高温に加熱される。   The indoor heat exchanger 9 is connected to a compressor (not shown) arranged outdoors, and the refrigeration cycle is operated by driving the compressor. The indoor heat exchanger 9 is cooled to a temperature lower than the ambient temperature during cooling by operating the refrigeration cycle. During heating, the indoor heat exchanger 9 is heated to a temperature higher than the ambient temperature.

室内熱交換器９とエアフィルタ８との間にはキャビネット２内に取り込まれた空気の温度を検知する温度センサ６１が設けられている。温度センサ６１は吸込口４から吸引された空気の温度を検知し、使用者により設定された目標の室温（以下、「設定温度」という）との差に応じて冷凍サイクルの運転周波数および送風ファン７の送風量が制御されるようになっている。   A temperature sensor 61 is provided between the indoor heat exchanger 9 and the air filter 8 to detect the temperature of the air taken into the cabinet 2. The temperature sensor 61 detects the temperature of the air sucked from the suction port 4, and the operating frequency of the refrigeration cycle and the blower fan according to the difference from the target room temperature (hereinafter referred to as “set temperature”) set by the user. 7 is controlled.

室内熱交換機９の前後の下部には冷房または除湿時に室内熱交換器９から落下した結露を補集するドレンパン１０が設けられている。前方のドレンパン１０はフロントパネル３に取り付けられ、後方のドレンパン１０はキャビネット２と一体に成形されている。   A drain pan 10 that collects condensation that has fallen from the indoor heat exchanger 9 during cooling or dehumidification is provided in the lower part before and after the indoor heat exchanger 9. The front drain pan 10 is attached to the front panel 3, and the rear drain pan 10 is formed integrally with the cabinet 2.

送風経路６内の吹出口５の近傍には、外部に臨んで上下方向の吹出角度を略水平方向と後方下方との間の任意方向に変更可能な横ルーバ１１ａ、１１ｂが設けられている。横ルーバ１１ａ、１１ｂの奥側には左右方向の吹出角度を変更可能な縦ルーバ１２が設けられている。   In the vicinity of the air outlet 5 in the air blowing path 6, lateral louvers 11 a and 11 b that face the outside and can change the vertical air outlet angle in an arbitrary direction between a substantially horizontal direction and a rear lower side are provided. A vertical louver 12 capable of changing the blowing angle in the left-right direction is provided on the back side of the horizontal louvers 11a, 11b.

上記構成の空気調和機において、空気調和機の暖房を開始すると、送風ファン７が回転駆動され、室外機（不図示）からの冷媒が室内熱交換器９へ流れて冷凍サイクルが運転される。これにより、室内機１内には吸込口４から空気が吸い込まれ、エアフィルタ８によって空気中に含まれる塵埃が除去される。   In the air conditioner having the above configuration, when heating of the air conditioner is started, the blower fan 7 is rotationally driven, refrigerant from the outdoor unit (not shown) flows to the indoor heat exchanger 9, and the refrigeration cycle is operated. Thus, air is sucked into the indoor unit 1 from the suction port 4, and dust contained in the air is removed by the air filter 8.

室内機１内に取り込まれた空気は室内熱交換器９と熱交換して加熱される。そして、送風経路６を通って縦ルーバ１２及び横ルーバ１１ａ、１１ｂによって左右方向及び上下方向の向きが規制され、吹出口５から矢印Ａに示すように前方下方に向けて調和空気が室内に送出される。   The air taken into the indoor unit 1 is heated by exchanging heat with the indoor heat exchanger 9. And the direction of the left-right direction and an up-down direction is controlled by the vertical louver 12 and the horizontal louvers 11a and 11b through the ventilation path 6, and conditioned air is sent out indoors toward the front lower direction from the blower outlet 5 as shown by the arrow A. Is done.

室内の温度と設定温度との差が所定温度よりも小さい場合等には、図４８に示すように横ルーバ１１ａ、１１ｂにより風向が略真下方向に向けられる。これにより、吹出口５から矢印Ｂ１に示すように略真下方向に調和空気が送出され、居室内の床面に到達して床面に沿って床面全体に広がる。   When the difference between the room temperature and the set temperature is smaller than a predetermined temperature, the wind direction is directed substantially downward by the lateral louvers 11a and 11b as shown in FIG. As a result, the conditioned air is sent out from the air outlet 5 in the substantially downward direction as indicated by the arrow B1, reaches the floor surface in the living room, and spreads along the floor surface over the entire floor surface.

また、暖気は比重が小さいため、吹出口５から送出された気流の一部は矢印Ｂ３に示すように巻き上げられて上昇する。その結果、ショートサーキットによる暖房能力低下や居室内の上部が暖められて下部が充分暖められない問題が生じる。   Moreover, since warm air has a small specific gravity, a part of the airflow sent out from the blower outlet 5 is wound up and rises as shown by an arrow B3. As a result, there arises a problem that the heating capacity is reduced due to the short circuit and the upper part of the living room is heated and the lower part is not sufficiently heated.

このため、特願２００３−００５３７８号には、図４９に示すように吹出口５から後方に向けて調和空気を送出できる空気調和機が示されている。これにより、吹出口５から矢印Ｃに示すように後方下方へ送出される空気はコアンダ効果によって側壁Ｗ１に伝って床面に到達する。従って、下方に送出された暖気の上昇を防止して暖房効率及び快適性を向上できるようになっている。   For this reason, Japanese Patent Application No. 2003-005378 shows an air conditioner that can send conditioned air backward from the blowout port 5 as shown in FIG. Thereby, as shown by the arrow C from the blower outlet 5, the air sent out back and downward is transmitted to the side wall W1 by the Coanda effect and reaches the floor surface. Therefore, it is possible to improve the heating efficiency and comfort by preventing an increase in warm air sent downward.

また、特許文献１には、風向板の向きを可変して吹出口５から略真下方向に向けて調和空気を送出できる空気調和機が開示されている。
特許第３３１１９３２号 Patent Document 1 discloses an air conditioner that can change the direction of the wind direction plate and send conditioned air from the blowout port 5 in a substantially downward direction.
Japanese Patent No. 3311932

図５０は上記従来の空気調和機により吹出口５から前方下方に調和空気を送出した場合の吹出口５近傍の静圧分布を示している。同図によると、吹出口５付近は均一な静圧分布になっている。しかしながら、吹出口５から略真下方向に調和空気を送出した場合には、送風経路６を流通する調和空気は横ルーバ１１ａ、１１ｂによって真下方向に約４５°風向が変更される。図５１はこの時の吹出口５近傍の静圧分布を示している。同図に示すように、送風経路６内には他の部分に比べて静圧が極めて高い高静圧部９０（図４８に斜線で示す）が生ずる。   FIG. 50 shows a static pressure distribution in the vicinity of the air outlet 5 when conditioned air is sent forward and downward from the air outlet 5 by the conventional air conditioner. According to the figure, the static pressure distribution is uniform in the vicinity of the blowout port 5. However, when the conditioned air is sent from the blower outlet 5 in the substantially downward direction, the conditioned air flowing through the air blowing path 6 is changed by the horizontal louvers 11a and 11b in the direction of about 45 ° in the downward direction. FIG. 51 shows the static pressure distribution in the vicinity of the outlet 5 at this time. As shown in the figure, a high static pressure portion 90 (indicated by hatching in FIG. 48) is generated in the blower path 6 where the static pressure is extremely higher than other portions.

送風経路６内を流通する調和空気が高静圧部９０を通過する。言い換えれば、高静圧部９０の静圧の等圧線と気流の流線とが交差して調和空気が流通する。このため、大きな圧力損失を引き起こし、送風効率が低下する。即ち、送風ファン７が同一の回転数の場合には最大風量時（上記前方下方吹出し時）の７０〜８０％程度に風量が減少する。つまり、高静圧部９０の等圧線と気流とが交差し、気流が高静圧部９０を通過する際に大きな圧力損失が生ずる。これが所謂曲がり損失の原因である。 The conditioned air flowing through the air blowing path 6 passes through the high static pressure unit 90. In other words, the conditioned air flows through the isostatic lines of the static pressure of the high static pressure section 90 and the streamlines of the airflow intersecting each other. For this reason, a big pressure loss is caused and ventilation efficiency falls. That is, when the blower fan 7 has the same number of rotations, the air volume is reduced to about 70 to 80% of the maximum air volume (at the time of forward downward blowing). That is, the isostatic line of the high static pressure portion 90 and the air flow intersect, and a large pressure loss occurs when the air flow passes through the high static pressure portion 90. This is the cause of so-called bending loss.

また、吹出口５から後方下方に調和空気を送出した場合には、送風経路６を流通する調和空気は横ルーバ１１ａ、１１ｂによって後方下方に約９０°風向が変更される。図５２はこの時の吹出口５近傍の静圧分布を示している。同図に示すように、送風経路６内には図５１に示した場合よりも静圧が高い高静圧部９０（図４９に斜線で示す）が生ずる。これにより、送風ファン７が同一の回転数の場合には最大風量時（上記前方下方吹出し時）の５０〜６０％程度に風量が減少する。   When the conditioned air is sent from the outlet 5 to the rear and lower side, the conditioned air flowing through the blower path 6 is changed by about 90 ° in the rear and lower direction by the lateral louvers 11a and 11b. FIG. 52 shows the static pressure distribution near the outlet 5 at this time. As shown in the figure, a high static pressure portion 90 (indicated by hatching in FIG. 49) having a higher static pressure than that shown in FIG. Thereby, when the blower fan 7 has the same rotation speed, the air volume is reduced to about 50 to 60% at the time of the maximum air volume (at the time of forward downward blowing).

吹出口６から送出される風量が減少すると暖気の到達距離の短縮や側壁Ｗ１からの気流の剥離が生じて浮力による巻き上がりが増加する。このため、居室を隅々まで空気調和できなくなるとともに床面近傍の温度が上昇せず、使用者に不快感を与えるとともに局所的に使用者の体温を低下させて健康に害を与える。これを防止するために、送風ファン７の回転数を増加して調和空気を送出することにより風量を増加すると騒音が大きくなる問題があった。   When the amount of air sent from the air outlet 6 is reduced, the reach of warm air is shortened and the airflow from the side wall W1 is peeled off, so that the winding due to buoyancy increases. For this reason, it becomes impossible to air-condition every corner of the living room and the temperature in the vicinity of the floor does not increase, which causes discomfort to the user and locally lowers the user's body temperature, thereby harming health. In order to prevent this, there is a problem that noise increases when the air volume is increased by increasing the number of rotations of the blower fan 7 and sending out conditioned air.

また、送風経路６を下向きに構成して真下方向や後方下方への吹出し時の圧力損失を軽減して騒音を低下させることも考えられる。しかし、水平方向や前方への吹出し時に風量が低下するだけでなく、冷房運転時に横ルーバ１１ａ、１１ｂに結露が生じやすくなるという新たな問題が発生する。   It is also conceivable that the air flow path 6 is configured downward to reduce pressure loss when blowing directly downward or rearward and lowering noise. However, there is a new problem that not only the air volume decreases when blowing in the horizontal direction or forward, but also that the side louvers 11a and 11b are likely to form condensation during the cooling operation.

また、特許文献１に開示された空気調和機によると、急激な風向変更を行うため風向板から気流が剥離し、所望の方向に風向を設定するのが困難となる。また、この場合も上記と同様に、風向板の近傍に高静圧部が生じ、気流と交差する等圧線が生じて圧力損失が大きくなるため風量が減少する。   Moreover, according to the air conditioner disclosed in Patent Document 1, since the wind direction is suddenly changed, the airflow is separated from the wind direction plate, and it is difficult to set the wind direction in a desired direction. Also in this case, similarly to the above, a high static pressure portion is generated in the vicinity of the wind direction plate, an isobaric line intersecting with the air flow is generated, and the pressure loss is increased, so that the air volume is reduced.

本発明は、吹出口から送出される空気の風向を切り替えられる空気調和機において、空気を広範囲に行き届かせることができるとともに騒音を低減できる空気調和機を提供することを目的とする。 An object of the present invention is to provide an air conditioner capable of reducing the noise while allowing air to reach a wide range in an air conditioner capable of switching the direction of the air sent from the air outlet.

上記目的を達成するために本発明は、室内の空気を取り入れる吸込口と、前記吸込口から取り入れて調和された調和空気を室内に送出する吹出口と、調和空気を前記吹出口に導く送風経路と、を備え、室内の壁面に取り付けられて運転を行う空気調和機において、前記吹出口の上部に回動可能に支持され、調和空気の風向を可変する第１風向可変部と、第１風向可変部の下方に回動可能に支持され、調和空気の風向を可変する第２風向可変部と、前記送風経路の下壁終端部に回動可能に支持され、調和空気の風向を可変する第３風向可変部と、を備え、前記送風経路の上壁を延長するように第１、第２風向可変部を配置するとともに、第３風向可変部を前記送風経路の下壁を延長するように配置して、前記吹出口から調和空気を略真下方向または後方下方に送出し、前記送風経路を流通する気流に略平行かつ気流を二分するように第１、第２風向可変部を配置するとともに、第３風向可変部を前記送風経路の下壁を延長するように配置して、前記吹出口から調和空気を前方下方に送出することを特徴としている。 In order to achieve the above object, the present invention provides a suction port for taking in indoor air, a blowout port for sending conditioned air taken in from the suction port into the room, and a ventilation path for guiding conditioned air to the blowout port. An air conditioner that is attached to an indoor wall surface and operates, and is supported rotatably at the upper part of the air outlet, and changes a wind direction of the conditioned air, and a first wind direction A second wind direction variable portion that is rotatably supported below the variable portion and varies the wind direction of the conditioned air, and a second wind direction variable portion that is pivotally supported by the lower wall end portion of the air flow path and varies the wind direction of the conditioned air. Three wind direction variable parts, and the first and second wind direction variable parts are arranged so as to extend the upper wall of the air flow path, and the third wind direction variable part is extended so as to extend the lower wall of the air flow path. Position the conditioned air from the air outlet Is disposed rearward and downward, and the first and second airflow direction variable portions are arranged so as to be substantially parallel to the airflow flowing through the airflow path and to bisect the airflow, and the third airflow direction variable portion is disposed on the lower wall of the airflow path. It arrange | positions so that it may extend and it sends out conditioned air to the front lower direction from the said blower outlet .

また本発明は、上記構成の空気調和機において、室内に送出する調和空気の風向を左右方向で可変する左右風向可変部を前記送風経路内にさらに備え、空気調和機の運転停止時には、第１風向可変部により前記吹出口の上部が閉塞されるとともに、第２風向可変部により前記吹出口の下部が閉塞され、第３風向可変部は、前記送風経路内であって第１、第２風向可変部により閉塞された前記吹出口の後方かつ前記左右風向可変部の前方の位置で、先端を上方に向けて配置されることを特徴としている。In the air conditioner having the above-described configuration, the air conditioner further includes a left / right air direction varying unit that varies a wind direction of the conditioned air to be sent out indoors in the left / right direction. The upper part of the blower outlet is closed by the wind direction variable part, and the lower part of the blower outlet is closed by the second wind direction variable part, and the third wind direction variable part is located in the air flow path in the first and second wind directions. It is characterized by being arranged with the tip facing upward at a position behind the blowout port closed by the variable portion and in front of the left / right airflow direction variable portion.

また本発明は、上記構成の空気調和機において、室内の空気を取り入れる吸込口と、前記吸込口から取り入れて調和された調和空気を室内に送出する吹出口と、調和空気を前記吹出口に導く送風経路と、を備え、室内の壁面に取り付けられて運転を行う空気調和機において、
前記吹出口に回動可能に配置され、調和空気の風向を可変する第１風向可変部と、前記送風経路の下壁終端部に回動可能に配置され、調和空気の風向を可変する第２風向可変部と、を備え、
前記送風経路の下壁に回動可能に枢支されるとともに回動可能な関節部を有する腕部材によって第１風向可変部は回動可能に支持され、
第１風向可変部を前記送風経路の上壁を延長する位置に配するとともに先端を下方に向けて配置し、第２風向可変部を前記送風経路の下壁を延長するように配置するとともに先端を下方に向けて配置して、前記吹出口から調和空気を略真下方向または後方下方に送出し、
第１、第２風向可変部を先端を下方に向けて配置するとともに、第１、第２風向可変部を対向させるように配置して、前記吹出口から調和空気を前方下方に送出することを特徴としている。 In the air conditioner configured as described above, the present invention provides a suction port for taking in indoor air, a blow-out port for sending conditioned air conditioned and taken from the suction port into the room, and guiding conditioned air to the blow-out port. An air conditioner that is mounted on an indoor wall surface and operates.
The 1st wind direction variable part arrange | positioned at the said blower outlet so that rotation is possible, and the 2nd which is arrange | positioned at the lower wall terminal part of the said ventilation path so that rotation of the wind direction of conditioned air is variable, and varies the wind direction of conditioned air. A wind direction variable part,
The first wind direction variable portion is rotatably supported by an arm member pivotally supported on the lower wall of the air flow path and having a rotatable joint.
The first wind direction variable portion is arranged at a position extending the upper wall of the air flow path, the tip is disposed downward, and the second wind direction variable portion is disposed so as to extend the lower wall of the air flow path, and the front end. Is arranged facing downward, and conditioned air is sent out from the outlet in a substantially downward direction or backward and downward,
The first and second wind direction variable parts are arranged with the tips facing downward, and the first and second wind direction variable parts are arranged to face each other, and the conditioned air is sent forward and downward from the air outlet. It is a feature.

また本発明は、上記構成の空気調和機において、室内に送出する調和空気の風向を左右方向で可変する左右風向可変部を前記送風経路内にさらに備え、空気調和機の運転停止時には、第１風向可変部が前記吹出口を閉塞し、第２風向可変部は、前記送風経路内であって第１風向可変部により閉塞された前記吹出口の後方かつ前記左右風向可変部の前方の位置で、先端を上方に向けて配置されることを特徴としている。
また本発明は、上記構成の空気調和機において、前記送風経路は前方下方に向けて調和空気を案内する前方案内部を有し、第１、第２風向可変部は断面形状が湾曲して形成され、前記吹出口から調和空気を前方下方に送出する際に、第１風向可変部を先端を下方に向けて下面側が凹になるように配置するとともに、第２風向可変部を先端を下方に向けて前記送風経路側が凸になるように配置し、第１、第２風向可変部を前記前方案内部に沿って配置して、調和空気の流路が下流に行くほど断面積が拡大されることを特徴としている。 In the air conditioner having the above-described configuration, the air conditioner further includes a left / right air direction varying unit that varies a wind direction of the conditioned air to be sent out indoors in the left / right direction. The wind direction variable portion closes the outlet, and the second wind direction variable portion is located at a position behind the outlet and in front of the left and right wind direction variable portions within the ventilation path and blocked by the first wind direction variable portion. It is characterized by being arranged with the tip facing upward .
In the air conditioner having the above-described configuration, the air flow path includes a front guide portion that guides conditioned air toward the front lower side, and the first and second wind direction variable portions are formed with curved cross-sectional shapes. When the conditioned air is sent out forward and downward from the air outlet, the first wind direction variable portion is disposed so that the tip is directed downward and the bottom surface is concave, and the second wind direction variable portion is disposed with the tip downward. The air flow path side is arranged so as to be convex, the first and second air direction variable parts are arranged along the front guide part, and the cross-sectional area is enlarged as the flow path of the conditioned air goes downstream. It is characterized by that.

また本発明は、上記構成の空気調和機において、前記吸込口から吸い込まれた空気の温度を検知する温度検知手段を備え、暖房運転を開始して一定時間が経過した場合または前記吸込口より取り込んだ空気の温度と設定温度との差が所定温度よりも小さい場合には、第１風向可変部は前記送風経路の上壁に一端部が接触して前記送風経路の上壁を延長する位置に配されるとともに、他端部は下方に向けて配置され、第２風向可変部は前記送風経路側が凸になるように先端が下方に向けて配置されることを特徴としている。  In the air conditioner having the above-described configuration, the present invention further includes temperature detection means for detecting the temperature of the air sucked from the suction port, and when a certain period of time has elapsed after starting the heating operation or is taken in from the suction port. When the difference between the temperature of the air and the set temperature is smaller than the predetermined temperature, the first airflow direction varying portion is in a position where one end of the first airflow direction varying portion extends to extend the upper wall of the air flow path. The other end portion is arranged downward, and the second wind direction variable portion is arranged such that the tip is arranged downward so that the air flow path side is convex.
また本発明は、上記構成の空気調和機において、 第１、第２風向可変部により前記送風経路を延長し、延長された送風経路の終端となる第１、第２風向可変部の下流側端部を後方下方に向けて配置することを特徴としている。  Moreover, in the air conditioner having the above-described configuration, the present invention extends the air flow path by the first and second air direction variable parts, and the downstream ends of the first and second air direction variable parts serving as the end of the extended air flow path. It is characterized in that the part is arranged rearward and downward.

本発明によると、風向可変部に面して流通する気流が静圧分布の等圧線と交差しない。 このため、気流にかかる圧力損失が低減して送風機の同一回転数時における風量を増加させることができる。従って、所望の風量を送出するのに必要な送風機の回転数を下げて騒音を低減することができる。 According to the present invention, the airflow that flows through the wind direction variable portion does not intersect with the isobars of the static pressure distribution. For this reason, the pressure loss concerning airflow can be reduced and the air volume at the same rotation speed of the blower can be increased. Therefore, it is possible to reduce noise by reducing the number of rotations of the blower necessary to send out a desired air volume.

また本発明によると、湾曲する気流路の壁面を容易に形成することができる。 Further, according to the present invention , the curved wall surface of the air channel can be easily formed.

また本発明によると、気流がよりスムーズに流通して圧力損失をより低減させることができる。従って、空気調和機から送出される調和空気の風量をさらに増加することができる。 Moreover, according to the present invention, it is possible to air flow to further reduce the pressure loss in circulation more smoothly. Therefore, the air volume of the conditioned air sent from the air conditioner can be further increased.

また本発明によると、容易に風向を可変することができる。また、風向可変部により送風経路が延長されるので、前方下方への吹出し時の圧力損失を低減できる。また、構成をより簡単にすることができる。 Moreover, according to the present invention, it can easily wind direction is variable to Rukoto. In addition, since the air flow path is extended by the wind direction variable portion, it is possible to reduce the pressure loss when blowing forward and downward. Also, it is possible to make it easier to configure.

以下に本発明の実施形態について図面を参照して説明する。説明の便宜上、以下の各実施形態において前述の図４７〜図５２に示す従来例と同一の部分については同一の符号を付している。   Embodiments of the present invention will be described below with reference to the drawings. For convenience of explanation, in each of the following embodiments, the same parts as those in the conventional example shown in FIGS.

＜第１実施形態＞
図１は第１実施形態の送風装置である空気調和機を示す側面断面図である（後述する図６のＤ断面を示している）。空気調和機の室内機１は、キャビネット２により本体部が保持されており、キャビネット２には上面側と前面側に吸込口４が設けられたフロントパネル３が着脱自在に取り付けられている。 <First Embodiment>
FIG. 1 is a side sectional view showing an air conditioner that is a blower of the first embodiment (showing a D section in FIG. 6 to be described later). The indoor unit 1 of the air conditioner has a main body held by a cabinet 2, and a front panel 3 provided with suction ports 4 on the upper surface side and the front surface side is detachably attached to the cabinet 2.

キャビネット２は後方側面に爪部（不図示）が設けられ、居室の側壁Ｗ１に取り付けられた取付板（不図示）に該爪部を係合することにより支持される。フロントパネル３の下端部とキャビネット２の下端部との間隙には、吹出口５が設けられている。吹出口５は室内機１の幅方向に延びる略矩形に形成され、前方下方に臨んで設けられている。   The cabinet 2 is provided with a claw portion (not shown) on the rear side surface, and is supported by engaging the claw portion with a mounting plate (not shown) attached to the side wall W1 of the living room. An air outlet 5 is provided in the gap between the lower end portion of the front panel 3 and the lower end portion of the cabinet 2. The air outlet 5 is formed in a substantially rectangular shape extending in the width direction of the indoor unit 1 and is provided facing the front lower side.

室内機１の内部には、吸込口４から吹出口５に連通する送風経路６が形成されている。送風経路６内には空気を送出する送風ファン７（送風機）が配されている。送風ファン７として、例えば、クロスフローファン等を用いることができる。   Inside the indoor unit 1, a blower path 6 that communicates from the suction port 4 to the blowout port 5 is formed. A blower fan 7 (blower) that sends out air is disposed in the blower path 6. For example, a cross flow fan or the like can be used as the blower fan 7.

送風経路６は送風ファン７により送出される空気を前方下方に案内する前方案内部６ａを有している。前方案内部６ａの下流側には可撓性材料から成る風向可変部１１０ａ、１１０ｂが設けられる。風向可変部１１０ａ、１１０ｂにより前方案内部６ａと吹出口５との間の送風経路６の壁面が形成されている。風向可変部１１０ａ、１１０ｂはフレキシブルに変形して所定の位置で保持され、吹出口５の吹出角度を前方上方乃至後方下方に変更できるようになっている。   The ventilation path 6 has a front guide portion 6 a that guides the air sent out by the blower fan 7 forward and downward. Wind direction variable portions 110a and 110b made of a flexible material are provided on the downstream side of the front guide portion 6a. A wall surface of the air flow path 6 between the front guide part 6a and the outlet 5 is formed by the air direction variable parts 110a and 110b. The air direction variable portions 110a and 110b are flexibly deformed and held at predetermined positions so that the blowing angle of the blowout port 5 can be changed from the front upper side to the rear lower side.

また、送風経路６内には前方側の風向可変部１１０ａ近傍の静圧を検知する静圧検知センサ（不図示）が設けられている。静圧検知センサの検知により風向可変部１１０ａ近傍の静圧が所定値になるように風向可変部１１０ａ、１１０ｂを配置できるようになっている。   Further, a static pressure detection sensor (not shown) for detecting the static pressure in the vicinity of the wind direction variable portion 110a on the front side is provided in the air blowing path 6. The wind direction variable portions 110a and 110b can be arranged so that the static pressure in the vicinity of the wind direction variable portion 110a becomes a predetermined value by the detection of the static pressure detection sensor.

尚、静圧検知センサを用いて風向可変部１１０ａ近傍の静圧が所定値になるように風向可変部１１０ａ、１１０ｂを可変し、風向可変部１１０ａ、１１０ｂの位置をデータベースとして記憶してもよい。これにより、運転条件に応じたデータをデータベースから取りだして風向可変部１１０ａ、１１０ｂを所定位置に配置でき、静圧検知センサを省くことができる。   Note that the wind direction variable units 110a and 110b may be varied using a static pressure detection sensor so that the static pressure near the wind direction variable unit 110a becomes a predetermined value, and the positions of the wind direction variable units 110a and 110b may be stored as a database. . As a result, data corresponding to operating conditions can be taken from the database, and the wind direction variable portions 110a and 110b can be arranged at predetermined positions, and the static pressure detection sensor can be omitted.

フロントパネル３に対向する位置には、吸込口４から吸い込まれた空気に含まれる塵埃を捕集・除去するエアフィルタ８が設けられている。送風経路６中の送風ファン７とエアフィルタ８との間には、室内熱交換器９が配置されている。室内熱交換器９は屋外に配される圧縮機（不図示）に接続されており、圧縮機の駆動により冷凍サイクルが運転される。   An air filter 8 that collects and removes dust contained in the air sucked from the suction port 4 is provided at a position facing the front panel 3. An indoor heat exchanger 9 is disposed between the blower fan 7 and the air filter 8 in the blower path 6. The indoor heat exchanger 9 is connected to a compressor (not shown) arranged outdoors, and the refrigeration cycle is operated by driving the compressor.

冷凍サイクルの運転によって冷房時には室内熱交換器９が周囲温度よりも低温に冷却される。また、暖房時には、室内熱交換器９が周囲温度よりも高温に加熱される。尚、室内熱交換器９とエアフィルタ８との間には吸い込まれた空気の温度を検知する温度センサ６１が設けられ、室内機１の側部には空気調和機の駆動を制御する制御部（不図示）が設けられている。室内熱交換機９の前後の下部には冷房または除湿時に室内熱交換器９から落下した結露を補集するドレンパン１０が設けられている。   The indoor heat exchanger 9 is cooled to a temperature lower than the ambient temperature during cooling by operating the refrigeration cycle. During heating, the indoor heat exchanger 9 is heated to a temperature higher than the ambient temperature. A temperature sensor 61 that detects the temperature of the sucked air is provided between the indoor heat exchanger 9 and the air filter 8, and a control unit that controls the driving of the air conditioner is provided on the side of the indoor unit 1. (Not shown) is provided. A drain pan 10 that collects condensation that has fallen from the indoor heat exchanger 9 during cooling or dehumidification is provided in the lower part before and after the indoor heat exchanger 9.

上記構成の空気調和機において、空気調和機の運転を開始すると、送風ファン７が回転駆動され、室外機（不図示）からの冷媒が室内熱交換器９へ流れて冷凍サイクルが運転される。これにより、室内機１内には吸込口４から空気が吸い込まれ、エアフィルタ８によって空気中に含まれる塵埃が除去される。   In the air conditioner having the above configuration, when the operation of the air conditioner is started, the blower fan 7 is rotationally driven, the refrigerant from the outdoor unit (not shown) flows to the indoor heat exchanger 9, and the refrigeration cycle is operated. Thus, air is sucked into the indoor unit 1 from the suction port 4, and dust contained in the air is removed by the air filter 8.

室内機１内に取り込まれた空気は室内熱交換器９と熱交換し、冷却または加熱される。   The air taken into the indoor unit 1 exchanges heat with the indoor heat exchanger 9, and is cooled or heated.

室内熱交換器９で冷却または加熱された調和空気は、縦ルーバ１２及び風向可変部１１０ａ、１１０ｂによって左右方向および上下方向に向きを規制され、矢印Ａに示すように前方下方に向けて室内に送出される。これにより、室内機１は前方下方に調和空気を送出する前方下方吹出しの状態になる。   The conditioned air cooled or heated by the indoor heat exchanger 9 is regulated in the left-right direction and the up-down direction by the vertical louver 12 and the wind direction variable portions 110a, 110b, and is directed indoors toward the front lower side as indicated by an arrow A. Sent out. Thereby, the indoor unit 1 will be in the state of the front downward blowing which sends out conditioned air to the front lower direction.

このとき、風向可変部１１０ａ、１１０ｂはそれぞれ送風経路６の上壁及び下壁を略直線的に延長するように配置される。これにより、風向可変部１１０ａ、１１０ｂは前方案内部６ａを流通する気流に沿った流路を形成する。また、風向可変部１１０ａ、１１０ｂによって送風経路６が下流に行くほど断面積が拡大するように形成される。このため、風向可変部１１０ａ、１１０ｂが所謂ディフューザとして作用し、風向可変部１１０ａ、１１０ｂに面して流通する気流の運動エネルギーが静圧に変換される。従って、吹出口５から送出される調和空気の風量が増加されるようになっている。   At this time, the air direction variable portions 110a and 110b are arranged so as to extend substantially linearly on the upper wall and the lower wall of the air blowing path 6, respectively. Thereby, the wind direction variable part 110a, 110b forms the flow path along the airflow which distribute | circulates the front guide part 6a. Moreover, it forms so that a cross-sectional area may expand, so that the ventilation path 6 goes downstream by the wind direction variable part 110a, 110b. For this reason, the wind direction variable parts 110a and 110b act as a so-called diffuser, and the kinetic energy of the airflow that circulates facing the wind direction variable parts 110a and 110b is converted into a static pressure. Therefore, the air volume of the conditioned air sent from the blower outlet 5 is increased.

空気調和機の運転開始直後は速やかに室内の空気を循環させる必要がある。このため、送風ファン７の回転速度を高くして室内熱交換器９で熱交換された空気は吹出口５から勢いよく送出される。これにより、調和空気は吹出口５から前方下方に例えば風速約６〜７ｍ／秒で矢印Ａに示すように送出され、居室内を循環する。   Immediately after the start of the operation of the air conditioner, it is necessary to circulate indoor air promptly. For this reason, the air exchanged by the indoor heat exchanger 9 by increasing the rotational speed of the blower fan 7 is sent out from the outlet 5 vigorously. As a result, the conditioned air is sent from the outlet 5 forward and downward, for example, at a wind speed of about 6 to 7 m / sec, as indicated by the arrow A, and circulates in the living room.

また、暖房運転の場合には暖房運転を開始して一定時間経過後または吸込口４より取込んだ空気の温度と設定温度との差が所定温度よりも小さい時に図２に示すように風向可変部１１０ａ、１１０ｂが変形される。そして、吹出口５から矢印Ｃに示すように後方下方（壁方向）に例えば風速約５〜６ｍ／秒で調和空気を送出する。   In the case of heating operation, the air direction is variable as shown in FIG. 2 after a certain period of time has elapsed after starting the heating operation or when the difference between the temperature of the air taken in from the suction port 4 and the set temperature is smaller than a predetermined temperature. The parts 110a and 110b are deformed. And as shown by the arrow C from the blower outlet 5, conditioned air is sent out to the back lower direction (wall direction), for example at a wind speed of about 5-6 m / sec.

送風経路６の上壁を構成する風向可変部１１０ａは送風経路６内に面した側が凹に形成され、前方案内部６ａを流通する気流の進行方向前方を閉塞する。送風経路６の下壁を構成する風向可変部１１０ｂは送風経路６内に面した側が凸に形成される。また、風向可変部１１０ａ、１１０ｂの下流側の端部は後方下方に向けて配置される。これにより、前方案内部６ａを流通する気流が風向可変部１１０ａ、１１０ｂにより湾曲され、後方下方に導かれる。   The wind direction variable portion 110a that constitutes the upper wall of the air blowing path 6 is formed in a concave shape on the side facing the air blowing path 6, and closes the front in the traveling direction of the airflow flowing through the front guide portion 6a. The air direction variable portion 110b that constitutes the lower wall of the air blowing path 6 is formed so that the side facing the air blowing path 6 is convex. Further, the downstream end portions of the wind direction variable portions 110a and 110b are arranged downward and rearward. As a result, the airflow flowing through the front guide portion 6a is curved by the wind direction variable portions 110a and 110b and guided backward and downward.

図３は送風経路６の静圧分布を示している。風向可変部１１０ａの内面側には風向可変部１１０ａに接して前方案内部６ａの静圧よりも高圧の高静圧部９０が形成される。送風経路６の静圧を検知する静圧検知センサ（不図示）の検知結果によって風向可変部１１０ａ、１１０ｂは位置調整され、高静圧部９０の等圧線９０ａが風向可変部１１０ａに面して流通する気流に沿って形成されている。即ち、高静圧部９０の等圧線９０ａは前方案内部６ａの終端と風向可変部１１０ａの終端とを結ぶ線に略平行に形成され、高静圧部９０近傍で気流が等圧線９０ａに略平行になっている。   FIG. 3 shows the static pressure distribution of the blower path 6. A high static pressure portion 90 is formed on the inner surface side of the wind direction variable portion 110a so as to be in contact with the wind direction variable portion 110a and higher than the static pressure of the front guide portion 6a. The position of the wind direction variable portions 110a and 110b is adjusted according to the detection result of a static pressure detection sensor (not shown) that detects the static pressure of the air flow path 6, and the isostatic line 90a of the high static pressure portion 90 faces the wind direction variable portion 110a. It is formed along the airflow. That is, the isobaric line 90a of the high static pressure part 90 is formed substantially parallel to the line connecting the end of the front guide part 6a and the end of the airflow direction changing part 110a, and the airflow is substantially parallel to the isobaric line 90a in the vicinity of the high static pressure part 90. It has become.

このため、高圧部９０は送風経路６内の静圧の差によって気流路の流体力学的な壁面を形成し、風向可変部１１０ａ、１１０ｂによって調和空気の送出方向を滑らかに可変して圧力損失の増加を抑制することができる。従って、風量を減少させずに調和空気を後方下方に送出することができる。尚、調和空気を略真下方向に送出する際も上記と同様に風向可変部１１０ａ、１１０ｂの向きによって高静圧部９０が気流路の壁面となり高静圧部９０の等圧線９０ａが気流に沿って形成される。これにより、風量を減少させずに調和空気を略真下方向に送出することができる。   For this reason, the high-pressure unit 90 forms a hydrodynamic wall surface of the air flow path by the difference in static pressure in the blower path 6, and smoothly changes the delivery direction of the conditioned air by the wind direction variable units 110a and 110b. Increase can be suppressed. Therefore, the conditioned air can be sent rearward and downward without reducing the air volume. Even when the conditioned air is sent substantially downward, the high static pressure portion 90 becomes the wall surface of the air flow path according to the direction of the wind direction variable portions 110a and 110b, and the isostatic line 90a of the high static pressure portion 90 follows the airflow. It is formed. As a result, conditioned air can be sent substantially downward without reducing the air volume.

図４は本実施形態の空気調和機の室内機１の送風ファン７の回転数と風量の関係を示している。縦軸は風量（単位：ｍ3／ｍｉｎ）を示し、横軸は送風ファン７の回転数（単位：ｒｐｍ）を示している。また、図中、Ｋ１は吹出風向が後方下方（壁方向吹出し、図２参照）のときを表わしている。比較のため、Ｋ２、Ｋ３、Ｋ４はそれぞれ従来の空気調和機において吹出風向が前方下方（最大風量時、図４７参照）、真下方向（図４８参照）、後方下方（図４９参照）のときを表わしている。 FIG. 4 shows the relationship between the rotational speed of the blower fan 7 and the air volume of the indoor unit 1 of the air conditioner of this embodiment. The vertical axis represents the air volume (unit: m 3 / min), and the horizontal axis represents the rotational speed (unit: rpm) of the blower fan 7. Further, in the figure, K1 represents the time when the blowing wind direction is the rear lower side (wall direction blowing, see FIG. 2). For comparison, K2, K3, and K4 are respectively when the blowing air direction is a front lower direction (see FIG. 47 at the maximum air volume, see FIG. 48), a rear lower direction (see FIG. 48), and a rear lower direction (see FIG. 49). It represents.

同図によると、従来の空気調和機（Ｋ２、Ｋ３、Ｋ４）においては、吹出口５近傍での風向変更角度が大きいほど同一回転数時の風量が減少している。これは、高静圧部９０を気流が通過する際の圧力損失のためであり、気流が通過する高静圧部９０の静圧が高いほど圧力損失も高くなって風量が減少するからである。   According to the figure, in the conventional air conditioners (K2, K3, K4), the air volume at the same rotation speed decreases as the wind direction change angle in the vicinity of the air outlet 5 increases. This is because of the pressure loss when the airflow passes through the high static pressure portion 90, and the higher the static pressure of the high static pressure portion 90 through which the airflow passes, the higher the pressure loss and the air volume decreases. .

これに対し、本実施形態（Ｋ１）は吹出風向が後方下方（壁方向吹出）であるにもかかわらず、風向を変更しない場合の前方下方吹出し時（Ｋ２）と略同等の風量を得ることができる。従って、後方下方吹出し時の送風効率を大幅に向上させることができる。   On the other hand, in the present embodiment (K1), although the blowing wind direction is the rear lower side (wall direction blowing), it is possible to obtain an air volume substantially equal to that at the front lower blowing (K2) when the wind direction is not changed. it can. Therefore, it is possible to greatly improve the air blowing efficiency when blowing backward and downward.

図５は本実施形態の空気調和機の室内機１の送風ファン７の風量と騒音との関係を示している。縦軸は騒音（単位：ｄＢ）を示し、横軸は風量（単位：ｍ3／ｍｉｎ）を示している。また、上記と同様に、図中、Ｋ１は吹出風向が後方下方（壁方向吹出し、図２参照）のときを表わし、Ｋ２、Ｋ３、Ｋ４はそれぞれ従来の空気調和機において吹出風向が前方下方（最大風量時、図４７参照）、真下方向（図４８参照）、後方下方（図４９参照）のときを表わしている。 FIG. 5 shows the relationship between the air volume of the blower fan 7 and the noise of the indoor unit 1 of the air conditioner of this embodiment. The vertical axis represents noise (unit: dB), and the horizontal axis represents the air volume (unit: m 3 / min). Similarly to the above, in the figure, K1 represents the time when the blown wind direction is the rear lower side (wall direction blown, see FIG. 2), and K2, K3, and K4 are the blown wind directions of the conventional air conditioner respectively. It represents the time when the maximum air volume is obtained (see FIG. 47), the downward direction (see FIG. 48), and the lower rear (see FIG. 49).

同図によると、従来の空気調和機（Ｋ２、Ｋ３、Ｋ４）においては、吹出口５近傍での風向変更角度が大きいほど同一風量時の騒音が増加している。これは、高静圧部９０を気流が通過する際の圧力損失のための風量減少によるものであり、気流が通過する高静圧部９０の静圧が高いほど圧力損失も高くなって風量が減少する。その結果、所望の風量を確保するために送風ファン７の回転数を高くする必要が生じ、騒音が増加するからである。   According to the figure, in the conventional air conditioners (K2, K3, K4), the noise at the same air volume increases as the wind direction change angle in the vicinity of the outlet 5 increases. This is due to a decrease in the air volume due to pressure loss when the airflow passes through the high static pressure section 90. The higher the static pressure of the high static pressure section 90 through which the airflow passes, the higher the pressure loss and the air volume. Decrease. As a result, it is necessary to increase the rotational speed of the blower fan 7 in order to ensure a desired air volume, and noise increases.

これに対し、本実施形態（Ｋ１）は吹出風向が後方下方（壁方向吹出）であるにもかかわらず、風向を変更しない場合の前方下方吹出し時（Ｋ２）と略同等の騒音を実現することができる。従って、後方下方吹出し時の静音性を大幅に向上させることができる。   On the other hand, the present embodiment (K1) realizes substantially the same noise as that of the forward downward blow (K2) when the wind direction is not changed even though the blown wind direction is the rear downward (wall direction blow). Can do. Therefore, it is possible to greatly improve the quietness when blowing backward and downward.

図４５は本実施形態と比較するための比較例の空気調和機の室内機１を示している。同図では、高静圧部９０により形成される流体力学的な壁面に替えて風向可変部１１０ａにより物理的な壁面を形成している。図４６はこの時の風向可変部１１０ａ、１１０ｂ近傍の静圧分布を示している。同図に示すように、流路内には気流の流線と交差する等圧線を有した高静圧部９０が形成される。従って、圧力損失が増大し、前述の図４、図５に示す従来の空気調和機の後方下方吹出し（Ｋ４）と同程度まで風量が激減することになる。   FIG. 45 shows an indoor unit 1 of an air conditioner of a comparative example for comparison with the present embodiment. In the figure, instead of the hydrodynamic wall formed by the high static pressure section 90, a physical wall surface is formed by the wind direction variable section 110a. FIG. 46 shows the static pressure distribution in the vicinity of the wind direction variable portions 110a and 110b at this time. As shown in the figure, a high static pressure portion 90 having an isobaric line that intersects the streamline of the airflow is formed in the flow path. Accordingly, the pressure loss is increased, and the air volume is drastically reduced to the same extent as the rear lower blowing (K4) of the conventional air conditioner shown in FIGS.

図２において、高静圧部９０は略弓形の二尖点曲線に形成され、高静圧部９０は略弓形を形成する弧の中央部が静圧の最高値になっている。これにより、高静圧部９０の上流側と下流側とが略対称な静圧分布になっている。従って、気流が等圧線９０ａに沿ってよりスムーズに流通して圧力損失をより低減し、空気調和機から送出される調和空気の風量をさらに増加することができる。   In FIG. 2, the high static pressure portion 90 is formed in a substantially arcuate bicuspid curve, and the high static pressure portion 90 has a maximum static pressure at the center of the arc forming a substantially arcuate shape. Thereby, the upstream side and the downstream side of the high static pressure portion 90 have a substantially symmetrical static pressure distribution. Therefore, the airflow can flow more smoothly along the isobar 90a, the pressure loss can be further reduced, and the amount of conditioned air sent from the air conditioner can be further increased.

更に、風向可変部１１０ａの前方案内部６ａに面した側の内壁は、下流へ行くほど下方に向かうように形成されるとともに、前方案内部６ａの下壁を吹出口５のさらに外側に延長した仮想面９８と交差するように配置されている。これにより、風向可変部１１０ａの下端部が仮想面９８よりも下方に配され、気流が略真下方向または後方下方に確実に導かれる。従って、意図しない方向に気流が送出されず、信頼性の高い空気調和機を得ることができる。   Further, the inner wall on the side facing the front guide portion 6a of the airflow direction changing portion 110a is formed so as to go downward as it goes downstream, and the lower wall of the front guide portion 6a is extended to the outside of the air outlet 5 further. It is arranged so as to intersect the virtual plane 98. Thereby, the lower end part of the wind direction variable part 110a is distribute | arranged below rather than the virtual surface 98, and an airflow is reliably guide | induced to right below substantially or back back. Therefore, airflow is not sent out in an unintended direction, and a highly reliable air conditioner can be obtained.

図６は後方下方吹出し時の居室Ｒ内の気流の挙動を示している。調和空気は側壁Ｗ１に沿って下降して矢印Ｃに示すように床面Ｆ、側壁Ｗ１に対向する側壁Ｗ２、天井壁Ｓを順次伝って吸込口４に戻る。これにより、送出された暖気の巻き上がりを防止してショートサーキットによる暖房効率の低下を防止できるとともに、居室Ｒの下部を充分暖めて快適性を向上させることができる。   FIG. 6 shows the behavior of the airflow in the living room R at the time of rearward and downward blowing. The conditioned air descends along the side wall W1 and returns to the suction port 4 along the floor surface F, the side wall W2 opposite to the side wall W1, and the ceiling wall S as indicated by an arrow C. As a result, it is possible to prevent the warmed air that has been sent out from being rolled up and prevent a reduction in heating efficiency due to the short circuit, and it is possible to sufficiently warm the lower part of the living room R and improve comfort.

暖房運転において、吸込口４より取込んだ空気の温度と設定温度との温度差が小さくなったことを温度センサ６１により検知すると、送風ファン７の調整により徐々に送風量が低下される。送風量が低下しても、室内機１から下方に送出された調和空気（暖気）はコアンダ効果により巻き上がらずに側壁Ｗ１に沿って下降し続け、居住空間に直接降り注がずに床面Ｆを伝って足元に到達する。従って、使用者に直接風が当たることによる不快感もなく快適性が向上する。   In the heating operation, when the temperature sensor 61 detects that the temperature difference between the temperature of the air taken in from the suction port 4 and the set temperature is small, the air flow is gradually reduced by adjusting the blower fan 7. Even if the air flow rate decreases, the conditioned air (warm air) sent downward from the indoor unit 1 continues to descend along the side wall W1 without being rolled up by the Coanda effect, and does not directly fall into the living space. Follow F and reach your feet. Therefore, comfort is improved without any discomfort due to direct wind on the user.

更に、使用者に直接風が当たることによる不快感がなく、同時に静音化が確保されているため、吸込口４より取込んだ空気の温度と設定温度との温度差が小さくなっても風量を低下させる必要がない。従って、常に大風量の調和空気を居室Ｒ内に供給し続けることができる。   Furthermore, since there is no discomfort due to direct wind hitting the user and noise reduction is ensured at the same time, even if the temperature difference between the temperature of the air taken in from the suction port 4 and the set temperature becomes small, the air volume can be reduced. There is no need to reduce it. Therefore, the conditioned air having a large air volume can always be continuously supplied into the living room R.

尚、風向可変部１１０ａ、１１０ｂの形状の設定を使用者によるリモートコントローラ（不図示）の操作によって行えるようになっている。これにより、調和空気の風向を使用者により任意に選択することができる。   It should be noted that the shape of the wind direction variable portions 110a and 110b can be set by a user operating a remote controller (not shown). Thereby, the wind direction of conditioned air can be arbitrarily selected by the user.

本実施形態によると、吹出口から調和空気を真下方向または後方下方に送出する際に、風向可変部１１０ａ、１１０ｂに面して流通する気流が前方案内部６ａを流通する気流に対して湾曲する。この時、風向可変部１１０ａに接する高静圧部９０によって静圧の差から成る気流路の壁面が形成される。これにより、高静圧部９０の等圧線９０ａが送風経路６を湾曲して流通する気流の主流の流線と交わらないため、該気流にかかる圧力損失を大幅に低減することができる。   According to the present embodiment, when the conditioned air is sent out from the air outlet directly downward or rearward and downward, the airflow flowing toward the wind direction variable portions 110a and 110b is curved with respect to the airflow flowing through the front guide portion 6a. . At this time, the wall surface of the air flow path formed by the difference in static pressure is formed by the high static pressure portion 90 in contact with the wind direction variable portion 110a. Thereby, since the isobaric line 90a of the high static pressure part 90 does not intersect with the mainstream streamline of the airflow flowing through the ventilation path 6, the pressure loss applied to the airflow can be greatly reduced.

その結果、大きな風向の変更にもかかわらず大風量の調和空気を送出することができる。尚、高静圧部９０では主流から分かれた低速かつ低エネルギーの気流が風向可変部１１０ａに沿って流通しているため、圧力損失に対する影響が少なくなっている。また、気流が風向可変部１１０ａと接していないので粘性による損失が低減され、更に風量を増加することができる。   As a result, a large amount of conditioned air can be sent out despite a large change in wind direction. In addition, in the high static pressure part 90, since the low-speed and low-energy air flow separated from the main stream flows along the wind direction variable part 110a, the influence on the pressure loss is reduced. Further, since the airflow is not in contact with the wind direction variable portion 110a, loss due to viscosity is reduced, and the air volume can be further increased.

また、風向可変部１１０ａによって前方案内部６ａを流通する気流の進行方向前方を閉塞することによって容易に気流に沿った等圧線９０ａを有する高静圧部９０を形成して気流路の壁面を形成することができる。   Moreover, the high static pressure part 90 which has the isobar 90a along the airflow is easily formed by obstruct | occluding the advancing direction front of the airflow which distribute | circulates the front guide part 6a by the air direction variable part 110a, and forms the wall surface of an air flow path. be able to.

また、高静圧部９０は流路の壁面を成し、高静圧部９０により調和空気の流路を絞ってノズル形状を成して流路面積を前方案内部６ａよりも狭くなる。このため、ノズルの作用により高エネルギーの流体が吹出口５から送出される。その結果、高静圧部９０に隣接する気流の風速が大きく変化せず、気流の静圧変動を抑制して気流がよりスムーズに流れて圧力損失をより低減できる。従って、空気調和機から送出する調和空気の風量をより増加させることができる。   Moreover, the high static pressure part 90 comprises the wall surface of a flow path, the flow path of conditioned air is restrict | squeezed by the high static pressure part 90, a nozzle shape is formed, and a flow path area becomes narrower than the front guide part 6a. For this reason, a high-energy fluid is delivered from the outlet 5 by the action of the nozzle. As a result, the wind speed of the airflow adjacent to the high static pressure portion 90 does not change significantly, and the static pressure fluctuation of the airflow is suppressed, so that the airflow flows more smoothly and pressure loss can be further reduced. Therefore, the air volume of the conditioned air sent from the air conditioner can be further increased.

また、高静圧部９０により絞られて一端狭くなった流路面積が風向可変部１１０ａ、１１０ｂの下流側で再度拡大されている。これにより、流路は下流に行くに従い一旦断面積が減少して最小断面積部（以下「のど部」という）が形成される。このため、拡大された流路によって所謂ディフューザが構成され、送風ファン７の静圧上昇を補助して更に風量を増加することができる。また、図３に示すように、流路ののど部には高静圧部９０が発生せず圧力損失が生じないため、その位置で流路を湾曲することにより、圧力損失が生じない湾曲部を形成することができる。   Further, the flow passage area narrowed by the high static pressure portion 90 and narrowed at one end is expanded again on the downstream side of the wind direction variable portions 110a and 110b. Thereby, as the flow path goes downstream, the cross-sectional area temporarily decreases to form a minimum cross-sectional area portion (hereinafter referred to as “throat portion”). For this reason, what is called a diffuser is comprised by the expanded flow path, and it can assist the static pressure rise of the ventilation fan 7, and can increase an air volume further. Further, as shown in FIG. 3, since the high static pressure portion 90 does not occur in the throat portion of the flow path and no pressure loss occurs, the curved portion where the pressure loss does not occur by bending the flow path at that position. Can be formed.

また、吹出口５にフレキシブルに変形できる可撓性の風向可変部１１０ａ、１１０ｂを設けているため、送風経路６の壁面を簡単に可変することができる。このため送風経路内の静圧分布を簡単に変更することができる。   Moreover, since the flexible wind direction variable part 110a, 110b which can be deform | transformed flexibly is provided in the blower outlet 5, the wall surface of the ventilation path 6 can be changed easily. For this reason, the static pressure distribution in the ventilation path can be easily changed.

尚、冷房運転の場合には、冷房運転を開始して一定時間が経過した場合や吸込口４より取込んだ空気の温度と設定温度との差が所定温度よりも小さい場合に、図７に示すように風向可変部１１０ａ、１１０ｂが配置される。これにより、吹出口５から矢印Ｄに示すように水平方向に例えば風速約５〜６ｍ／秒で調和空気を送出する。   In the case of the cooling operation, when a certain time has elapsed since the start of the cooling operation or when the difference between the temperature of the air taken in from the suction port 4 and the set temperature is smaller than a predetermined temperature, FIG. As shown, wind direction variable portions 110a and 110b are arranged. Thereby, as shown by the arrow D from the blower outlet 5, conditioned air is sent out at a wind speed of about 5 to 6 m / sec in the horizontal direction, for example.

即ち、前方案内部６ａの上壁を延長する風向可変部１１０ａは水平方向に向けて配置される。前方案内部６ａの下壁を延長する風向可変部１１０ｂは、送風経路６内側が凹になるように下流端が水平方向に向けて配置される。そして、風向可変部１１０ａ、１１０ｂに沿って調和空気が流通すると、風向可変部１１０ｂの凹部に二尖点曲線から成る略弓形の高静圧部９０が形成される。   That is, the wind direction varying part 110a extending the upper wall of the front guide part 6a is arranged in the horizontal direction. The wind direction variable portion 110b extending the lower wall of the front guide portion 6a is arranged with its downstream end directed in the horizontal direction so that the inside of the air passage 6 is concave. When the conditioned air flows along the wind direction variable portions 110a and 110b, a substantially arcuate high static pressure portion 90 having a bicuspid curve is formed in the concave portion of the wind direction variable portion 110b.

従って、上記と同様に、送風ファン７の回転数が同一回転数の場合には、従来に比べて大風量の調和空気を吹出口５から水平方向に送出することができ、同一風量の場合には、従来に比べて低騒音にて調和空気を吹出口５から水平方向に送出することができる。   Therefore, in the same manner as described above, when the rotational speed of the blower fan 7 is the same, the conditioned air having a larger air volume than the conventional air can be sent out from the outlet 5 in the horizontal direction. Can send conditioned air in a horizontal direction from the blow-out port 5 with low noise compared to the prior art.

本実施形態の他の態様として、空気調和機を所謂コーナーエアコンのように構成してもよい。即ち、図８に示すように、室内機１ｂを居室Ｒの隣接する二側壁Ｗ３、Ｗ４が交差したコーナーＬの天井壁Ｓに接する位置に取り付けてもよい。この場合においても、吹出口からコーナーＬに向けて後方下方に調和空気を吹き出すことにより、調和空気はコーナーＬ及び側壁Ｗ３、Ｗ４に沿って下降し、矢印Ｃに示すように床面Ｆ、側壁Ｗ３、Ｗ４に対向する側壁Ｗ５、Ｗ６、天井壁Ｓを順次伝って吸込口４に戻る。これにより暖気が居室Ｒ内を循環して暖房運転が行われる。従って、上記の効果を得ることができる。   As another aspect of the present embodiment, the air conditioner may be configured as a so-called corner air conditioner. That is, as shown in FIG. 8, the indoor unit 1b may be attached at a position where it touches the ceiling wall S of the corner L where two adjacent side walls W3 and W4 of the living room R intersect. In this case as well, the conditioned air descends along the corner L and the side walls W3 and W4 by blowing out the conditioned air from the outlet toward the corner L downward and downward. It returns to the inlet 4 through the side walls W5, W6 and the ceiling wall S facing W3, W4 in order. Thereby, warm air circulates through the room R and heating operation is performed. Therefore, the above effect can be obtained.

＜第２実施形態＞
次に、図９は第２実施形態の送風装置である空気調和機の室内機１を示す側面断面図である。前述の図１〜図８に示す第１実施形態と同様の部分には同一の符号を付している。本実施形態は第１実施形態の可撓性材料から成る風向可変部１１０ａ、１１０ｂに替えて回動により送風経路６を延長する風向可変部１１１ａ、１１１ｂが設けられる。その他の部分は第１実施形態と同様である。 Second Embodiment
Next, FIG. 9 is a side cross-sectional view showing the indoor unit 1 of the air conditioner that is the air blower of the second embodiment. The same parts as those in the first embodiment shown in FIGS. 1 to 8 are given the same reference numerals. In this embodiment, instead of the wind direction variable portions 110a and 110b made of the flexible material of the first embodiment, wind direction variable portions 111a and 111b that extend the air blowing path 6 by rotation are provided. Other parts are the same as those in the first embodiment.

風向可変部１１１ｂは回動軸１１１ｄにより回動可能に支持され、風向可変部１１１ａは回動軸１１１ｄに連結される腕部１１１ｃを介して回動軸１１１ｅにより回動可能に支持されている。回動軸１１１ｄはギヤ（不図示）を介して駆動モータ１１１ｆの駆動により回転する。また、風向可変部１１１ａの先端には風向可変部１１１ａの位置を規制する位置規制部１１１ｇが設けられている。   The wind direction variable portion 111b is rotatably supported by a rotation shaft 111d, and the wind direction variable portion 111a is rotatably supported by a rotation shaft 111e via an arm portion 111c connected to the rotation shaft 111d. The rotating shaft 111d is rotated by driving of a driving motor 111f through a gear (not shown). Further, a position restricting portion 111g for restricting the position of the air direction varying portion 111a is provided at the tip of the air direction varying portion 111a.

同図に示すように空気調和機の運転を開始すると風向可変部１１１ａ、１１１ｂがキャビネット２の下方に収納され、矢印Ａに示すように吹出口５から前方下方に調和空気が送出される。また、暖房運転の場合に運転開始して一定時間が経過した場合や吸込口４より取込んだ空気の温度と設定温度との差が所定温度よりも小さい場合には、図１０に示すように風向可変部１１１ａ、１１１ｂが展開される。これにより、矢印Ｃに示すように後方下方に調和空気が送出される。例えば、側壁Ｗ１に向けて風速約５〜６ｍ／秒で送出され、コアンダ効果によって側壁Ｗ１に沿って流通する。   As shown in the figure, when the operation of the air conditioner is started, the air direction variable portions 111a and 111b are housed below the cabinet 2, and the conditioned air is sent out from the outlet 5 to the front lower side as indicated by the arrow A. Further, in the case of heating operation, when a certain time has elapsed since the start of operation, or when the difference between the temperature of the air taken in from the suction port 4 and the set temperature is smaller than a predetermined temperature, as shown in FIG. The wind direction variable parts 111a and 111b are developed. Thereby, as shown by the arrow C, the conditioned air is sent downward and downward. For example, it is sent toward the side wall W1 at a wind speed of about 5 to 6 m / sec, and circulates along the side wall W1 by the Coanda effect.

図１１（ａ）〜（ｆ）は風向可変部１１１ａ、１１１ｂの動作を示している。図１１（ａ）は風向可変部１１１ａ、１１１ｂが展開した状態（図１０参照）を表している。即ち、風向可変部１１１ａは前方案内部６ａの上壁に接触して第１実施形態と同様に送風経路６の上壁を延長し、前方案内部６ａの気流の進行方向前方を閉塞する位置に配置される。風向可変部１１１ｂは第１実施形態と同様に送風経路６の下壁を延長する位置に配置される。   FIGS. 11A to 11F show the operation of the wind direction variable portions 111a and 111b. FIG. 11A shows a state where the wind direction variable portions 111a and 111b are expanded (see FIG. 10). That is, the wind direction variable portion 111a contacts the upper wall of the front guide portion 6a and extends the upper wall of the air flow path 6 in the same manner as in the first embodiment, and closes the front of the air flow direction of the front guide portion 6a. Be placed. The wind direction variable part 111b is arrange | positioned in the position which extends the lower wall of the ventilation path 6 similarly to 1st Embodiment.

図１１（ｂ）は駆動モータ１１１ｆが駆動開始した状態を示している。駆動モータ１１１ｆの駆動により回転軸１１１ｄがＪ方向に回転すると、風向可変部１１１ａ、１１１ｂ及び腕１１１ｃが回転軸１１１ｄを中心にしてＪ方向に回動する。図１１（ｃ）、（ｄ）に示すように更に駆動モータ１１１ｆの駆動により回動軸１１１ｄが回動すると、風向可変部板１１１ｂがキャビネット２の下面に接触する。   FIG. 11B shows a state in which the drive motor 111f has started driving. When the rotating shaft 111d rotates in the J direction by driving the drive motor 111f, the wind direction variable portions 111a and 111b and the arm 111c rotate in the J direction around the rotating shaft 111d. As shown in FIGS. 11C and 11D, when the rotation shaft 111d is further rotated by driving of the drive motor 111f, the wind direction varying portion plate 111b comes into contact with the lower surface of the cabinet 2.

更に回動軸１１ｄが回転すると風向可変部１１１ａが回動し、図１１（ｅ）に示すように位置規制部１１１ｇがキャビネット２の下面に当接する。腕部１１１ｃが回動を継続することによって位置規制部１１１ｆがキャビネット２と摺動し、風向可変部１１１ｂがＫ方向に回動する。そして、図１１（ｆ）に示すように、風向可変部１１１ａが風向可変部１１１ｂに当接して風向可変部１１１ａ、１１１ｂが収納状態（図９参照）になる。   When the rotation shaft 11d further rotates, the wind direction variable portion 111a rotates, and the position restricting portion 111g contacts the lower surface of the cabinet 2 as shown in FIG. As the arm portion 111c continues to rotate, the position restricting portion 111f slides with the cabinet 2, and the wind direction varying portion 111b rotates in the K direction. Then, as shown in FIG. 11 (f), the wind direction variable portion 111 a comes into contact with the wind direction variable portion 111 b and the wind direction variable portions 111 a and 111 b are in the stored state (see FIG. 9).

尚、風向可変部１１１ａ、１１１ｂを展開する場合は上記と逆順に動作する。この時、風向可変部１１１ａは送風経路６の上壁に当接して位置決めされる。従って、送風経路６の上壁が風向可変部１１１ａの位置決め手段を構成し、静圧の差による気流路の壁面を形成する位置に風向可変部１１１ａを配置する。これにより、風向可変部１１１ａの配置を管理して、確実に気流路の壁面を形成することができる。また、風向可変部１１１ｂはストッパ（不図示）により図１１（ａ）に示す位置から反時計回りの回動が規制されている。これにより、該ストッパによって風向可変部１１１ｂを所定位置に位置決めする位置決め手段が構成されている。   Note that when the wind direction variable portions 111a and 111b are deployed, they operate in the reverse order. At this time, the air direction varying portion 111a is positioned in contact with the upper wall of the air blowing path 6. Therefore, the upper wall of the air flow path 6 constitutes a positioning means for the air direction variable portion 111a, and the air direction variable portion 111a is disposed at a position where the wall surface of the air flow path is formed by the difference in static pressure. Thereby, the arrangement of the air direction variable portion 111a can be managed to reliably form the wall surface of the air flow path. Further, the air direction variable portion 111b is restricted from rotating counterclockwise from the position shown in FIG. 11A by a stopper (not shown). Thereby, a positioning means for positioning the wind direction varying portion 111b at a predetermined position by the stopper is configured.

図１０において、風向可変部１１１ａは送風経路６側が凹になり、下流側の端部が後方下方に向けられる。風向可変部１１１ｂは第１実施形態と同様に送風経路６の下壁を延長して配置される。また、風向可変部１１１ｂは送風経路６側が凸になり、吹出口５の下壁部を拡張して滑らかに延長する位置に配されて下流側の端部は後方下方に向けられる。そして、第１実施形態と同様に、風向可変部１１１ａ、１１１ｂに面して調和空気が流通する際に風向可変部１１１ａに接した二尖点曲線から成る略弓形の高静圧部９０を形成する。   In FIG. 10, the air direction variable portion 111 a is concave on the air blowing path 6 side, and the downstream end is directed rearward and downward. The air direction variable portion 111b is arranged by extending the lower wall of the air blowing path 6 as in the first embodiment. Further, the air direction variable portion 111b is convex on the air passage 6 side, and is disposed at a position where the lower wall portion of the air outlet 5 is extended and smoothly extended, and the downstream end portion is directed rearward and downward. Then, as in the first embodiment, a substantially arch-shaped high static pressure portion 90 formed of a bicuspid curve that contacts the wind direction varying portion 111a when the conditioned air flows while facing the wind direction varying portions 111a and 111b is formed. To do.

これにより、高静圧部９０の等圧線９０ａ（図３参照）は風向可変部１１１ａ、１１１ｂに面した気流に沿って形成される。このため、高圧部９０は送風経路６内の静圧の差によって気流路の流体力学的な壁面を形成し、調和空気が送出方向を滑らかに可変して圧力損失を生じることなく吹出口５から後方下方に送出される。風向可変部１１１ａ、１１１ｂの先端を略真下方向に向けて配置して吹出口５から略真下方向に調和空気を送出してもよい。   Thereby, the isostatic line 90a (refer FIG. 3) of the high static pressure part 90 is formed along the airflow which faced the wind direction variable parts 111a and 111b. For this reason, the high-pressure part 90 forms a hydrodynamic wall surface of the air flow path by the difference in static pressure in the blower path 6, and the conditioned air smoothly changes the delivery direction from the outlet 5 without causing pressure loss. It is sent out backward and downward. The air direction variable portions 111a and 111b may be arranged such that the tips of the air direction variable portions 111a and 111b face substantially downward, and the conditioned air may be sent out from the air outlet 5 substantially downward.

また、高静圧部９０によって流路が絞られ、下流側で再度流路が拡大されている。更に、風向可変部１１１ａは前方案内部６ａの下壁を吹出口５から外側に延長した仮想面９８と交差するように配置される。従って、第１実施形態と同様の効果を得ることができる。尚、使用者によるリモートコントローラの操作によって、縦ルーバ１２および風向可変部１１１ａ、１１１ｂの設定を可変できるようになっている。   Further, the flow path is narrowed by the high static pressure portion 90, and the flow path is expanded again on the downstream side. Further, the air direction varying portion 111a is arranged so as to intersect with a virtual surface 98 obtained by extending the lower wall of the front guide portion 6a outward from the air outlet 5. Therefore, the same effect as the first embodiment can be obtained. Note that the settings of the vertical louver 12 and the wind direction variable portions 111a and 111b can be changed by the operation of the remote controller by the user.

＜第３実施形態＞
次に、図１２は第３実施形態の送風装置である空気調和機の室内機１を示す側面断面図である。前述の図９〜図１１に示す第２実施形態と同様の部分には同一の符号を付している。本実施形態は第２実施形態の風向可変部１１１ａ、１１１ｂに替えて回動可能に支持される風向可変部１１２ａ、１１２ｂが設けられる。その他の部分は第２実施形態と同様である。 <Third Embodiment>
Next, FIG. 12 is a side cross-sectional view showing the indoor unit 1 of the air conditioner that is the blower of the third embodiment. Portions similar to those of the second embodiment shown in FIGS. 9 to 11 are given the same reference numerals. In this embodiment, instead of the wind direction variable portions 111a and 111b of the second embodiment, wind direction variable portions 112a and 112b that are rotatably supported are provided. Other parts are the same as those of the second embodiment.

風向可変部１１２ｂは前方案内部６ａの下壁を延長し、駆動モータ（不図示）の駆動によって回転する回動軸１１２ｆによりキャビネット２に枢支されている。回動軸１１２ｆには上腕１１２ｃが回動可能に連結され、上腕１１２ｃには腕関節１１２ｅを介して下腕１１２ｄが回動可能に連結されている。風向可変部１１２ａは吹出口５に配されるとともに駆動モータ（不図示）によって回転する回動軸１１２ｇにより下腕１１２ｄに回動可能に支持され、駆動モータの駆動によって向きを替えて風向を可変する風向板から成っている。   The wind direction variable portion 112b extends from the lower wall of the front guide portion 6a and is pivotally supported by the cabinet 2 by a rotating shaft 112f that rotates by driving of a drive motor (not shown). An upper arm 112c is rotatably connected to the rotation shaft 112f, and a lower arm 112d is rotatably connected to the upper arm 112c via an arm joint 112e. The wind direction variable portion 112a is arranged at the outlet 5 and is rotatably supported by the lower arm 112d by a rotating shaft 112g that is rotated by a drive motor (not shown), and the direction of the wind is changed by driving the drive motor. It consists of wind direction plates.

暖房運転を開始すると、断面形状が湾曲した風向可変部１１２ａ、１１２ｂは同図に示すように上腕１１２ｃ、下腕１１２ｄが伸びた状態で前方案内部６ａに沿って配置される。風向可変部１１２ａは先端を下方に向けて下面側が凹になるように配置され、風向可変部１１２ｂは先端を下方に向けて送風経路６側が凸になるように配置される。そして、調和空気を矢印Ａに示すように前方下方に送出する。   When the heating operation is started, the wind direction variable portions 112a and 112b having a curved cross-sectional shape are arranged along the front guide portion 6a with the upper arm 112c and the lower arm 112d extended as shown in FIG. The wind direction variable portion 112a is disposed so that the front end is directed downward and the lower surface side is concave, and the wind direction variable portion 112b is disposed such that the front end is directed downward and the air blowing path 6 side is convex. Then, the conditioned air is sent forward and downward as indicated by an arrow A.

また、風向可変部１１２ｂは送風経路６側が凸になっているため、調和空気の流路が下流に行くほど断面積が拡大されている。これにより、この部分を気流が流通すると運動エネルギーが静圧に変換され、所謂ディフューザとして作用する。このため、送風ファン７の風量を増加するようになっている。   Moreover, since the airflow direction variable part 112b has the air supply path 6 side convex, the cross-sectional area is enlarged so that the flow path of conditioned air goes downstream. As a result, when the airflow flows through this portion, the kinetic energy is converted into a static pressure and acts as a so-called diffuser. For this reason, the air volume of the blower fan 7 is increased.

暖房運転を開始して一定時間が経過した場合や吸込口４より取込んだ空気の温度と設定温度との差が所定温度よりも小さい場合には、図１３に示すように風向可変部１１２ａ、１１２ｂが配置される。即ち、風向可変部１１２ａは駆動モータの駆動によって送風経路６の上壁に一端部が接触して送風経路６の上壁を延長する位置に配される。風向可変部１１２ａの他端部は後方下方に向けて配置される。また、風向可変部１１２ｂは送風経路６側が凸になるように先端が後方下方に向けて配置される。   When a certain time has elapsed after starting the heating operation, or when the difference between the temperature of the air taken in from the suction port 4 and the set temperature is smaller than a predetermined temperature, as shown in FIG. 112b is arranged. That is, the wind direction variable portion 112a is disposed at a position where one end of the air direction variable portion 112a is brought into contact with the upper wall of the air passage 6 by the drive motor and the upper wall of the air passage 6 is extended. The other end portion of the wind direction variable portion 112a is arranged facing backward and downward. Moreover, the wind direction variable part 112b is arrange | positioned toward the back downward direction so that the ventilation path 6 side may become convex.

この時、風向可変部１１２ａは送風経路６の上壁に当接して位置決めされる。従って、送風経路６の上壁が風向可変部１１２ａの位置決め手段を構成し、静圧の差による気流路の壁面を形成する位置に風向可変部１１２ａを配置する。これにより、風向可変部１１２ａの配置を管理して、確実に気流路の壁面を形成することができる。また、風向可変部１１２ｂはストッパ（不図示）により同図に示す位置から時計回りの回動が規制されている。これにより、該ストッパによって風向可変部１１２ｂを所定位置に位置決めする位置決め手段が構成されている。   At this time, the air direction varying portion 112a is positioned in contact with the upper wall of the air blowing path 6. Therefore, the upper wall of the air flow path 6 constitutes the positioning means of the air direction variable portion 112a, and the air direction variable portion 112a is disposed at a position where the wall surface of the air flow path is formed by the difference in static pressure. Thereby, the arrangement of the air direction variable portion 112a can be managed to reliably form the wall surface of the air flow path. The wind direction variable portion 112b is restricted from rotating clockwise from the position shown in the figure by a stopper (not shown). Thereby, a positioning means for positioning the wind direction varying portion 112b at a predetermined position by the stopper is configured.

風向可変部１１２ａによって前方案内部６ａを流通する気流の進行方向前方が閉塞され、風向可変部１１２ａに接した二尖点曲線から成る略弓形の高静圧部９０が形成される。高静圧部９０は等圧線９０ａ（図３参照）が第１、第２実施形態と同様に風向可変部１１２ａ、１１２ｂに面した調和空気の流通方向に沿って形成される。このため、高圧部９０は送風経路６内の静圧の差によって気流路の流体力学的な壁面を形成し、調和空気が送出方向を滑らかに可変して吹出口５から後方下方に送出される。   The forward direction of the airflow flowing through the front guide portion 6a is closed by the wind direction variable portion 112a, and a substantially arcuate high static pressure portion 90 having a bicuspid curve in contact with the wind direction variable portion 112a is formed. In the high static pressure portion 90, the isobaric line 90a (see FIG. 3) is formed along the flow direction of the conditioned air facing the wind direction variable portions 112a and 112b, as in the first and second embodiments. For this reason, the high pressure section 90 forms a hydrodynamic wall surface of the air flow path by the difference in the static pressure in the air flow path 6, and the conditioned air is sent from the outlet 5 to the lower rear side with the delivery direction smoothly changed. .

この時、前方案内部６ａの上壁と風向可変部１１２ａとの接触部分が滑らかな曲面にならないため高静圧部９０には渦２５が発生して第１、第２実施形態よりも送風効率がやや低下する。しかしながら、従来よりも圧力損失の増加を抑制して第１、第２実施形態と略同等の送風効率を得ることができる。風向可変部１１２ａ、１１２ｂの先端を略真下方向に向けて吹出口５から略真下方向に調和空気を送出してもよい。   At this time, since the contact portion between the upper wall of the front guide portion 6a and the wind direction varying portion 112a does not become a smooth curved surface, the vortex 25 is generated in the high static pressure portion 90, and the air blowing efficiency is higher than in the first and second embodiments. Slightly decreases. However, it is possible to obtain an air blowing efficiency substantially equal to that of the first and second embodiments while suppressing an increase in pressure loss as compared with the prior art. The conditioned air may be sent out from the air outlet 5 in the substantially downward direction with the tips of the air direction variable portions 112a and 112b directed in the substantially downward direction.

また、高静圧部９０によって流路が絞られ、下流側で再度流路が拡大されている。更に、風向可変部１１２ａは前方案内部６ａの下壁を吹出口５から外側に延長した仮想面９８と交差するように配置される。従って、第１、第２実施形態と同様の効果を得ることができる。   Further, the flow path is narrowed by the high static pressure portion 90, and the flow path is expanded again on the downstream side. Furthermore, the wind direction variable part 112a is arrange | positioned so that the virtual wall 98 which extended the lower wall of the front guide part 6a outside from the blower outlet 5 may be crossed. Therefore, the same effects as those of the first and second embodiments can be obtained.

上記構成の空気調和機により冷房運転を開始すると、風向可変部１１２ａ、１１２ｂは図１４に示すように配置される。即ち、風向可変部１１２ａは上腕１１２ｃ、下腕１１２ｄが伸びた状態で前方案内部６ａに沿って先端を前方下方に向けて下面側が凸になるように配置される。   When the cooling operation is started by the air conditioner having the above-described configuration, the air direction variable portions 112a and 112b are arranged as shown in FIG. In other words, the wind direction varying portion 112a is arranged so that the lower surface side is convex along the front guide portion 6a with the upper arm 112c and the lower arm 112d extended along the front guide portion 6a.

風向可変部１１２ｂは吹出口５から送出される気流から退避してキャビネット２の下方に収納される。そして、調和空気を矢印Ａに示すように前方下方に送出する。これにより、暖房運転時の前方下方吹出しよりも上方に調和空気を送出し、温度の低い調和空気が自重により降下して室内に拡散されるようになっている。また、風向可変部１１２ｂをキャビネット２の下方に収納することにより、冷房時の風向可変部１１２ｂへの発露を防止できる。   The air direction variable portion 112 b is retracted from the air flow sent out from the air outlet 5 and is stored below the cabinet 2. Then, the conditioned air is sent forward and downward as indicated by an arrow A. As a result, the conditioned air is sent upward from the front lower blowing during the heating operation, and the conditioned air having a low temperature is lowered by its own weight and diffused into the room. In addition, by storing the air direction variable portion 112b below the cabinet 2, it is possible to prevent dew on the air direction variable portion 112b during cooling.

冷房運転を開始して一定時間が経過した場合や吸込口４より取込んだ空気の温度と設定温度との差が所定温度よりも小さい場合には、図１５に示すように風向可変部１１２ａ、１１２ｂが配置される。即ち、風向可変部１１２ａは上腕１１２ｃ、下腕１１２ｄが伸びた状態で下面側が凸になるとともに、上流側の端部が送風経路６を流通する気流に略平行かつ気流を二分し、下流側の端部が水平方向前方を向くように配置される。   When a certain time has elapsed since the start of the cooling operation or when the difference between the temperature of the air taken in from the suction port 4 and the set temperature is smaller than a predetermined temperature, as shown in FIG. 112b is arranged. That is, the wind direction variable portion 112a is convex on the lower surface side with the upper arm 112c and the lower arm 112d extended, and the upstream end is substantially parallel to the airflow flowing through the air blowing path 6 and bisects the airflow, It arrange | positions so that an edge part may face a horizontal direction front.

また、風向可変部１１２ｂは吹出口５から送出される気流から退避してキャビネット２の下方に収納される。そして、吹出口５から矢印Ｄに示すように水平方向に例えば風速約５〜６ｍ／秒で調和空気が送出される。   Further, the air direction varying portion 112 b is retracted from the air flow sent out from the air outlet 5 and is stored below the cabinet 2. And as shown by the arrow D from the blower outlet 5, the conditioned air is sent out at a wind speed of about 5 to 6 m / sec in the horizontal direction, for example.

図１６は空気調和機の運転停止時の状態を示している。空気調和機の運転を停止すると、上腕１１２ｃ、下腕１１２ｄが折り畳まれた状態になり風向可変部１１２ｂが送風経路６内に配され、風向可変部１１２ａにより吹出口５が閉塞される。これにより、室内機１の内部を視認できないようになっている。尚、使用者によるリモートコントローラの操作によって、縦ルーバ１２及び風向可変部１１２ａ、１１２ｂの位置を可変できるようになっている。   FIG. 16 shows a state when the operation of the air conditioner is stopped. When the operation of the air conditioner is stopped, the upper arm 112c and the lower arm 112d are in a folded state, the wind direction variable portion 112b is arranged in the blower path 6, and the air outlet 5 is blocked by the wind direction variable portion 112a. Thereby, the inside of the indoor unit 1 cannot be visually recognized. In addition, the position of the vertical louver 12 and the wind direction variable parts 112a and 112b can be changed by the operation of the remote controller by the user.

＜第４実施形態＞
次に、図１７は第４実施形態の送風装置である空気調和機の室内機１を示す側面断面図である。前述の図１２〜図１６に示す第３実施形態と同様の部分には同一の符号を付している。本実施形態は第３実施形態の風向可変部１１２ａ、１１２ｂに替えて回動可能に支持される風向可変部１１３ａ、１１３ｂ、１１３ｃが設けられる。また、送風経路６の上壁は吹出口５近傍で上方に向けて傾斜している。その他の部分は第３実施形態と同様である。 <Fourth embodiment>
Next, FIG. 17 is a side cross-sectional view showing the indoor unit 1 of the air conditioner that is the air blower of the fourth embodiment. The same parts as those in the third embodiment shown in FIGS. 12 to 16 are denoted by the same reference numerals. In this embodiment, instead of the wind direction variable portions 112a and 112b of the third embodiment, wind direction variable portions 113a, 113b, and 113c that are rotatably supported are provided. Moreover, the upper wall of the ventilation path 6 is inclined upward near the outlet 5. Other parts are the same as those of the third embodiment.

風向可変部１１３ｃは前方案内部６ａの下壁を延長し、駆動モータ（不図示）の駆動によって回転する回動軸１１３ｆによりキャビネット２に枢支されている。風向可変部１１３ａ、１１３ｂは吹出口５に配されるとともに駆動モータ（不図示）によって回転する回動軸１１３ｄ、１１３ｅにより回動可能に支持され、駆動モータの駆動によって向きを替えて風向を可変する風向板から成っている。   The air direction variable portion 113c extends from the lower wall of the front guide portion 6a and is pivotally supported on the cabinet 2 by a rotating shaft 113f that rotates by driving of a drive motor (not shown). The air direction variable portions 113a and 113b are disposed at the outlet 5 and are rotatably supported by rotating shafts 113d and 113e that are rotated by a drive motor (not shown), and the direction of the air is changed by driving the drive motor to change the air direction. It consists of wind direction plates.

また、風向可変部１１３ｂ、１１３ｃは断面形状が湾曲しており、一面が凸状の曲面に形成されるとともに他面が凹状の曲面に形成される。風向可変部１１３ａは一面（図中、下面）が略平面になっており他面（図中、上面）が緩やかな凸状の曲面に形成され、略中央部付近を回転軸１１３ｄで軸支されている。   The wind direction variable portions 113b and 113c are curved in cross section, and one surface is formed as a convex curved surface and the other surface is formed as a concave curved surface. One surface (lower surface in the figure) of the air direction variable portion 113a is substantially flat, and the other surface (upper surface in the figure) is formed into a gently convex curved surface. ing.

上記構成の空気調和機において、暖房運転を開始すると風向可変部１１３ａ、１１３ｂ、１１３ｃは同図に示すように配置される。即ち、風向可変部１１３ａは回転軸１１３ｄの駆動により後方下方に面して平面側が配され、前方上方に面して曲面側が配置される。風向可変部１１３ｂは回転軸１１３ｅの駆動により上流側端部は送風経路６を流通する気流に略平行かつ気流を二分して配される。また、風向可変部１１３ｂの前方上方側が凸に配置され、下流側の端部は前方下方に向けられる。   In the air conditioner having the above configuration, when the heating operation is started, the air direction variable portions 113a, 113b, 113c are arranged as shown in FIG. In other words, the wind direction varying portion 113a faces the rear lower side by the driving of the rotating shaft 113d and the flat surface side is arranged, and the curved surface side is arranged facing the upper front side. The wind direction variable portion 113b is arranged so that the upstream side end portion is substantially parallel to the airflow flowing through the air blowing path 6 and the airflow is divided in half by driving the rotating shaft 113e. Moreover, the front upper side of the wind direction variable part 113b is convexly arranged, and the downstream end is directed downward in the front.

風向可変部１１３ｃは先端を下方に向けて送風経路６側が凸になるように配置される。そして、調和空気を矢印Ａに示すように前方下方に送出する。これにより、室内機１は前方下方に調和空気を送出する前方下方吹出しの状態になる。   The air direction variable portion 113c is arranged so that the air passage 6 side is convex with the tip directed downward. Then, the conditioned air is sent forward and downward as indicated by an arrow A. Thereby, the indoor unit 1 will be in the state of the front downward blowing which sends out conditioned air to the front lower direction.

また、風向可変部１１３ｃは送風経路６側が凸になっているため、調和空気の流路が下流に行くほど断面積が拡大されている。これにより、この部分を気流が流通すると運動エネルギーが静圧に変換され、所謂ディフューザとして作用する。このため、送風ファン７の風量を増加するようになっている。   Moreover, since the airflow direction variable part 113c has the air supply path 6 side convex, the cross-sectional area is enlarged so that the flow path of conditioned air goes downstream. As a result, when the airflow flows through this portion, the kinetic energy is converted into a static pressure and acts as a so-called diffuser. For this reason, the air volume of the blower fan 7 is increased.

また、図１８に示すように風向可変部１１３ａ、１１３ｃにより吹出口５を絞ることもできる。即ち、風向可変部１１３ａは前方上方に面して平面側が配され、後方下方に面して曲面側が配される。風向可変部１１３ｃは図１７よりも上向きに配置され、風向可変部１１３ａとの間に形成される調和空気の流路面積が縮小される。風向可変部１１３ｂは風向可変部１１３ａ、１１３ｃの間を流通する気流に沿って配置される。   Moreover, as shown in FIG. 18, the blower outlet 5 can also be restrict | squeezed by the wind direction variable parts 113a and 113c. In other words, the wind direction variable portion 113a faces the front upper side and is disposed on the plane side, and faces the rear lower side and the curved surface side is disposed. The air direction variable portion 113c is arranged upward from FIG. 17, and the flow area of the conditioned air formed between the air direction variable portion 113a and the air direction variable portion 113a is reduced. The wind direction variable portion 113b is disposed along the airflow flowing between the wind direction variable portions 113a and 113c.

これにより、風向可変部１１３ａ、１１３ｃの間を気流が流通すると静圧が運動エネルギーに変換される。従って、送風ファンの風量が減少して吹出し風速が増加し、気流の到達距離を延長することができる。   As a result, when the airflow flows between the wind direction variable portions 113a and 113c, the static pressure is converted into kinetic energy. Therefore, the air volume of the blower fan is reduced, the blown air speed is increased, and the reach distance of the airflow can be extended.

暖房運転を開始して一定時間が経過した場合や吸込口４より取込んだ空気の温度と設定温度との差が所定温度よりも小さい場合には、図１９に示すように風向可変部１１３ａ、１１３ｂ、１１３ｃが配置される。即ち、風向可変部１１３ａは駆動モータの駆動によって平面側を前面に向け、送風経路６の上壁に一端部が接触して送風経路６の上壁を延長する位置に配される。   When a certain time has elapsed after starting the heating operation or when the difference between the temperature of the air taken in from the suction port 4 and the set temperature is smaller than a predetermined temperature, as shown in FIG. 113b and 113c are arranged. In other words, the air direction variable portion 113a is disposed at a position where one end of the airflow direction changing portion 113a is brought into contact with the upper wall of the air passage 6 and the upper wall of the air passage 6 is extended by driving the driving motor.

風向可変部１１３ａの他端部は回動軸１１３ｅに接するように下方に向けて配される。風向可変部１１３ｂは送風経路６側が凹になるように先端が後方下方に向けて配される。風向可変部１１３ｃは送風経路６側が凸になるように先端が後方下方に向けられて配される。   The other end portion of the wind direction varying portion 113a is arranged downward so as to contact the rotating shaft 113e. The wind direction variable portion 113b is arranged with the tip facing downward and rearward so that the air flow path 6 side is concave. The air direction variable portion 113c is arranged with the tip directed downward and rearward so that the air flow path 6 side is convex.

この時、風向可変部１１３ａは風向可変部１１３ｂに当接して位置決めされる。従って、風向可変部１１３ｂが風向可変部１１３ａの位置決め手段を構成し、静圧の差による気流路の壁面を形成する位置に風向可変部１１３ａを配置する。これにより、風向可変部１１３ａの配置を管理して、確実に気流路の壁面を形成することができる。また、風向可変部１１３ｃはストッパ（不図示）により同図に示す位置から時計回りの回動が規制されている。これにより、該ストッパによって風向可変部１１３ｃを所定位置に位置決めする位置決め手段が構成されている。尚、風向可変部１１３ｂは駆動モータの回転量の制御によって同図に示す位置に配置される。   At this time, the wind direction varying portion 113a is positioned in contact with the wind direction varying portion 113b. Therefore, the wind direction varying portion 113b constitutes a positioning means for the wind direction varying portion 113a, and the wind direction varying portion 113a is disposed at a position where the wall surface of the air flow path is formed by the difference in static pressure. Thereby, the arrangement of the wind direction variable portion 113a can be managed to reliably form the wall surface of the air flow path. Further, the wind direction variable portion 113c is restricted from rotating clockwise from the position shown in the figure by a stopper (not shown). Thus, positioning means for positioning the wind direction varying portion 113c at a predetermined position by the stopper is configured. The wind direction variable portion 113b is disposed at the position shown in FIG.

これにより、前方案内部６ａを流通する気流の進行方向前方が風向可変部１１３ａ、１１３ｂにより閉塞され、風向可変部１１３ａ、１１３ｂに接した二尖点曲線から成る略弓形の高静圧部９０が形成される。高静圧部９０の等圧線９０ａ（図３参照）は第１〜第３実施形態と同様に風向可変部１１３ａ、１１３ｂ、１１３ｃに面した調和空気の流通方向に沿って形成される。このため、高圧部９０は送風経路６内の静圧の差によって気流路の流体力学的な壁面を形成し、調和空気が送出方向を滑らかに可変して吹出口５から後方下方に送出される。   As a result, the forward direction of the airflow flowing through the front guide portion 6a is blocked by the airflow direction variable portions 113a and 113b, and the substantially arcuate high static pressure portion 90 formed of a bicuspid curve in contact with the airflow direction variable portions 113a and 113b. It is formed. The isobaric line 90a (see FIG. 3) of the high static pressure part 90 is formed along the flow direction of the conditioned air facing the wind direction variable parts 113a, 113b, 113c, as in the first to third embodiments. For this reason, the high pressure section 90 forms a hydrodynamic wall surface of the air flow path by the difference in the static pressure in the air flow path 6, and the conditioned air is sent from the outlet 5 to the lower rear side with the delivery direction smoothly changed. .

この時、前方案内部６ａの上壁と風向可変部１１３ａとの接触部分が滑らかな曲面により形成されないため高静圧部９０には渦２５が発生して第１、第２実施形態よりも送風効率がやや低下する。しかしながら、従来よりも圧力損失の増加を抑制して第１、第２実施形態と略同等の送風効率を得ることができる。   At this time, since the contact portion between the upper wall of the front guide portion 6a and the air direction variable portion 113a is not formed by a smooth curved surface, a vortex 25 is generated in the high static pressure portion 90 and air is blown more than in the first and second embodiments. Efficiency is slightly reduced. However, it is possible to obtain an air blowing efficiency substantially equal to that of the first and second embodiments while suppressing an increase in pressure loss as compared with the prior art.

また、高静圧部９０によって流路が絞られ、下流側で再度流路が拡大されている。更に、風向可変部１１３ｂは前方案内部６ａの下壁を吹出口５のさらに外側に延長した仮想面９８と交差するように配置される。従って、第１〜第３実施形態と同様の効果を得ることができる。   Further, the flow path is narrowed by the high static pressure portion 90, and the flow path is expanded again on the downstream side. Further, the air direction variable portion 113b is disposed so as to intersect with a virtual plane 98 that extends the lower wall of the front guide portion 6a further to the outside of the air outlet 5. Therefore, the same effects as those of the first to third embodiments can be obtained.

尚、図２０に示すように、風向可変部１１３ａの平面側を送風経路６に面して配置してもよい。これにより、前面パネル３に沿って風向可変部１１３ａ、１１３ｂが配され、室内機１の美観が向上する。この時、高静圧部９０は前方上方に傾斜した送風経路６の上壁と風向可変部１１３ａ、１１３ｂにより囲まれて形成されるため高静圧部９０内に発達する渦２５が大きくなる。このため、図１９の場合に比して送風効率がやや若干低下するが従来よりも圧力損失の増加を抑制することができる。   In addition, as shown in FIG. 20, you may arrange | position the plane side of the wind direction variable part 113a facing the ventilation path 6. As shown in FIG. Thereby, the wind direction variable part 113a, 113b is distribute | arranged along the front panel 3, and the beauty | look of the indoor unit 1 improves. At this time, since the high static pressure part 90 is formed by being surrounded by the upper wall of the air flow path 6 inclined forward and upward and the wind direction variable parts 113a and 113b, the vortex 25 developed in the high static pressure part 90 becomes large. For this reason, compared with the case of FIG. 19, although ventilation efficiency falls a little, the increase in a pressure loss can be suppressed rather than before.

また、図２１に示すように、風向可変部１１３ｂ、１１３ｃの先端を略真下方向に向けて吹出口５から略真下方向に調和空気を送出してもよい。この時、図２２に示すように前面パネル３に沿って風向可変部１１３ａを配置すると室内機１の美観が向上する。   In addition, as shown in FIG. 21, the conditioned air may be sent from the air outlet 5 in the substantially downward direction with the tips of the air direction variable portions 113b and 113c facing in the substantially downward direction. At this time, if the wind direction variable portion 113a is arranged along the front panel 3 as shown in FIG. 22, the aesthetic appearance of the indoor unit 1 is improved.

また上記構成の空気調和機において、冷房運転を開始すると、風向可変部１１３ａ、１１３ｂ、１１３ｃは図２３に示すように配置される。即ち、風向可変部１１３ａは前方案内部６ａを流通する気流に沿って平面側が前方上方に面して配置される。風向可変部１１３ｂは前方案内部６ａを流通する気流に略平行かつ気流を二分して下に凸に配される。風向可変部１１３ｃは吹出口５から送出される気流から退避してキャビネット２の下方に配される。   In the air conditioner having the above-described configuration, when the cooling operation is started, the air direction variable portions 113a, 113b, 113c are arranged as shown in FIG. In other words, the air direction variable portion 113a is arranged such that the plane side faces the front upper side along the airflow flowing through the front guide portion 6a. The air direction varying portion 113b is arranged in parallel with the airflow flowing through the front guide portion 6a and is convex downward by dividing the airflow into two. The air direction varying portion 113 c is disposed below the cabinet 2 by retracting from the airflow sent from the blowout port 5.

そして、調和空気を矢印Ａに示すように前方下方に送出する。これにより、暖房運転時の前方下方吹出しよりも上方に調和空気を送出し、温度の低い調和空気が自重により降下して室内に拡散される。   Then, the conditioned air is sent forward and downward as indicated by an arrow A. As a result, the conditioned air is sent upward from the front lower blowing during the heating operation, and the conditioned air having a low temperature is lowered by its own weight and diffused into the room.

尚、風向可変部１１３ａを前述の図１７に示すように後方下方に面して平面側を配置すると上方に気流が流れず風向可変部１１３ａに結露が生じる。このため、風向可変部１１３ａの平面側を上面にすることにより回動軸１１３ｄよりも下方に風向可変部１１３ａが配置される。これにより、風向可変部１１３ａの両面に沿って低温の調和空気が流通し、風向可変部１１３ａの結露を防止することができる。   If the airflow direction changing portion 113a faces the rear lower side and is disposed on the plane side as shown in FIG. 17, the airflow does not flow upward and condensation occurs in the airflow direction changing portion 113a. For this reason, the wind direction variable part 113a is arrange | positioned below 113 A of rotating shafts by making the plane side of the wind direction variable part 113a into an upper surface. Thereby, low-temperature conditioned air flows along both surfaces of the wind direction variable portion 113a, and condensation of the wind direction variable portion 113a can be prevented.

冷房運転を開始して一定時間が経過した場合や吸込口４より取込んだ空気の温度と設定温度との差が所定温度よりも小さい場合には、図２４に示すように風向可変部１１３ａ、１１３ｂ、１１３ｃが配置される。即ち、風向可変部１１３ａは前方案内部６ａを流通する気流に沿って平面側が後方上方に面して配置される。風向可変部１１３ｂは前方案内部６ａを流通する気流に略平行かつ気流を二分して下に凸に配される。風向可変部１１３ｃは吹出口５から送出される気流から退避してキャビネット２の下方に配される。   When a certain time has elapsed since the start of the cooling operation or when the difference between the temperature of the air taken in from the suction port 4 and the set temperature is smaller than the predetermined temperature, as shown in FIG. 113b and 113c are arranged. That is, the airflow direction changing portion 113a is arranged with the plane side facing the rear upper side along the airflow flowing through the front guide portion 6a. The air direction varying portion 113b is arranged in parallel with the airflow flowing through the front guide portion 6a and is convex downward by dividing the airflow into two. The air direction varying portion 113 c is disposed below the cabinet 2 by retracting from the airflow sent from the blowout port 5.

これにより、調和空気は吹出口５から矢印Ｅに示すように前方上方に例えば風速約５〜６ｍ／秒で送出される。室内に送出された調和空気は図２５に示すように、居室Ｒの天井に到達する。その後、コアンダ効果により天井面Ｓから室内機１に対向する壁面Ｗ２、床面Ｆ、室内機１側の壁面Ｗ１を順次伝って室内機１の両側方から吸込口４に吸い込まれる。   As a result, the conditioned air is sent out from the blow-out port 5 upward and forward, for example, at a wind speed of about 5 to 6 m / sec. The conditioned air sent into the room reaches the ceiling of the living room R as shown in FIG. Thereafter, the air is sucked into the suction port 4 from both sides of the indoor unit 1 along the wall surface W2 facing the indoor unit 1 from the ceiling surface S, the floor surface F, and the wall surface W1 on the indoor unit 1 side by the Coanda effect.

従って、使用者に常に冷たい風や暖かい風が当たることがなく、使用者の不快感を防止して快適性を向上することができる。更に、冷房時には局所的に使用者の体温を低下させることがなく健康上の安全性を向上することができる。またこのとき、気流が居室Ｒ全体を大きく攪拌するので、居室Ｒ内の温度分布が設定温度付近で均一になる。即ち、居室Ｒの上方の一部を除いて、使用者の居住領域全体が設定温度に略一致して温度ばらつきが小さく直接風もほとんど使用者に当たることのない快適空間を得ることができる。また、風向可変部１１３ｃをキャビネット２の下方に収納することにより、冷房時の風向可変部１１３ｃへの発露を防止できる。   Therefore, the user is not always exposed to cold wind or warm wind, and the user's discomfort can be prevented and the comfort can be improved. Furthermore, health safety can be improved without locally lowering the user's body temperature during cooling. At this time, since the air flow greatly stirs the entire room R, the temperature distribution in the room R becomes uniform near the set temperature. That is, except for a part above the living room R, the entire living area of the user substantially matches the set temperature, a temperature variation is small, and a comfortable space in which direct wind hardly hits the user can be obtained. Further, by storing the air direction variable portion 113c below the cabinet 2, it is possible to prevent dew on the air direction variable portion 113c during cooling.

更に、図２６に示すように、風向可変部１１３ａの向きを水平にすると、矢印Ｄに示すように調和空気を吹出口５から水平方向に送出することができる。尚、前述の図２３に示す前方下方吹出し時に風向可変部１１３ｂを下に凸に配置することにより、前方上方吹出し時（図２４参照）及び水平方向吹出し時（図２６参照）においてスムーズに風向可変部１１３ｂを配置することができる。   Furthermore, as shown in FIG. 26, when the direction of the air direction varying portion 113a is made horizontal, conditioned air can be sent out from the blowout port 5 in the horizontal direction as indicated by an arrow D. In addition, by arranging the air direction variable portion 113b so as to protrude downward at the time of forward downward blowing shown in FIG. 23, the wind direction can be smoothly changed at the time of forward upward blowing (see FIG. 24) and horizontal blowing (see FIG. 26). The part 113b can be arranged.

図２７は空気調和機の運転停止時の状態を示している。空気調和機の運転を停止すると、風向可変部１１３ｃが送風経路６内に配置され、風向可変部１１３ａ、１１３ｂにより吹出口５が閉塞される。これにより、室内機１の内部を視認できないようになっている。また、前面パネル３に沿って風向可変部１１３ａを配置し、風向可変部１１３ａの下端とキャビネット２の底面とを繋ぐように風向可変部１１３ｂを配置すると、室内機１の美観を向上することができる。尚、使用者によるリモートコントローラの操作によって、縦ルーバ１２及び風向可変部１１３ａ、１１３ｂ、１１３ｃの位置を可変できるようになっている。   FIG. 27 shows a state when the operation of the air conditioner is stopped. When the operation of the air conditioner is stopped, the air direction variable portion 113c is disposed in the air blowing path 6, and the air outlet 5 is closed by the air direction variable portions 113a and 113b. Thereby, the inside of the indoor unit 1 cannot be visually recognized. Moreover, if the wind direction varying portion 113a is arranged along the front panel 3 and the wind direction varying portion 113b is arranged so as to connect the lower end of the wind direction varying portion 113a and the bottom surface of the cabinet 2, the aesthetic appearance of the indoor unit 1 can be improved. it can. In addition, the position of the vertical louver 12 and the wind direction variable portions 113a, 113b, and 113c can be changed by the operation of the remote controller by the user.

＜第５実施形態＞
次に、図２８は第５実施形態の送風装置である空気調和機の室内機１を示す側面断面図である。前述の図１７〜図２７に示す第４実施形態と同様の部分には同一の符号を付している。本実施形態は第４実施形態の風向可変部１１３ａ、１１３ｂ、１１３ｃに替えて風向可変部１１４ａ、１１４ｂが設けられる。その他の部分は第４実施形態と同様である。 <Fifth Embodiment>
Next, FIG. 28 is a side cross-sectional view showing the indoor unit 1 of the air conditioner that is a blower of the fifth embodiment. Portions similar to those in the fourth embodiment shown in FIGS. 17 to 27 are given the same reference numerals. In the present embodiment, wind direction variable portions 114a and 114b are provided in place of the wind direction variable portions 113a, 113b, and 113c of the fourth embodiment. Other parts are the same as in the fourth embodiment.

風向可変部１１４ａ、１１４ｂは吹出口５に配され、両面が平面の平板から成っている。回動軸１１４ｃ、１１４ｄは風向可変部１１４ａ、１１４ｂを回動可能に支持し、駆動モータ（不図示）によって回転する。これにより、風向可変部１１４ａ、１１４ｂは駆動モータの駆動によって向きを替えて風向を可変する風向板から成っている。また、回動軸１１４ｃは風向可変部１１４ａの略中央に設けられ、回動軸１１４ｄは風向可変部１１４ｂの端部に設けられる。   The air direction variable portions 114a and 114b are disposed at the outlet 5 and are formed of flat plates having both surfaces. The rotating shafts 114c and 114d rotatably support the air direction variable portions 114a and 114b, and are rotated by a drive motor (not shown). As a result, the wind direction variable portions 114a and 114b are made of wind direction plates that change the direction of the wind direction by driving the drive motor. Further, the rotation shaft 114c is provided at the approximate center of the wind direction variable portion 114a, and the rotation shaft 114d is provided at the end of the wind direction variable portion 114b.

上記構成の空気調和機において、暖房運転を開始すると風向可変部１１４ａ、１１４ｂは同図に示すように配置される。即ち、風向可変部１１４ａ、１１４ｂは前方案内部６ａを流通する気流に沿って配置される。この時、風向可変部１１４ｂは回動軸１１４ｄ側の端部が後方になるように配置されている。そして、調和空気を矢印Ａに示すように前方下方に送出する。これにより、室内機１は前方下方に調和空気を送出する前方下方吹出しの状態になる。   In the air conditioner having the above-described configuration, when the heating operation is started, the air direction variable portions 114a and 114b are arranged as shown in FIG. That is, the wind direction variable portions 114a and 114b are arranged along the airflow flowing through the front guide portion 6a. At this time, the wind direction varying portion 114b is arranged so that the end portion on the rotating shaft 114d side is rearward. Then, the conditioned air is sent forward and downward as indicated by an arrow A. Thereby, the indoor unit 1 will be in the state of the front downward blowing which sends out conditioned air to the front lower direction.

暖房運転を開始して一定時間が経過した場合や吸込口４より取込んだ空気の温度と設定温度との差が所定温度よりも小さい場合には、図２９に示すように風向可変部１１４ａ、１１４ｂが配置される。即ち、風向可変部１１４ａは駆動モータの駆動によって一端が送風経路６の上壁に近接して上壁を下方へ延長するように配される。風向可変部１１４ａの他端部は回動軸１１４ｄに近接して下方に向けて配される。風向可変部１１４ｂは先端が後方下方に向けて配される。   When a certain time has elapsed after starting the heating operation or when the difference between the temperature of the air taken in from the suction port 4 and the set temperature is smaller than a predetermined temperature, as shown in FIG. 114b is arranged. That is, the wind direction variable portion 114a is arranged so that one end thereof is close to the upper wall of the air blowing path 6 and extends the upper wall downward by driving the drive motor. The other end portion of the wind direction varying portion 114a is disposed close to the rotating shaft 114d and directed downward. The tip of the wind direction varying portion 114b is arranged with the rearward downward direction.

この時、風向可変部１１４ａは駆動モータのストッパ（不図示）によって図中、反時計回りの回動が規制されている。従って、該ストッパによって風向可変部１１４ａを所定位置に位置決めする位置決め手段が構成され、静圧の差による気流路の壁面を形成する位置に風向可変部１１４ａを配置する。これにより、風向可変部１１４ａの配置を管理して、確実に気流路の壁面を形成することができる。尚、風向可変部１１４ｂは駆動モータの回転量の制御によって同図に示す位置に配置される。   At this time, the wind direction variable portion 114a is restricted from rotating counterclockwise in the drawing by a stopper (not shown) of the drive motor. Accordingly, positioning means for positioning the wind direction varying portion 114a at a predetermined position is configured by the stopper, and the wind direction varying portion 114a is disposed at a position where the wall surface of the air flow path is formed by the difference in static pressure. Thereby, the arrangement of the air direction variable portion 114a can be managed to reliably form the wall surface of the air flow path. Note that the wind direction varying portion 114b is disposed at the position shown in FIG. 4 by controlling the rotation amount of the drive motor.

これにより、前方案内部６ａを流通する気流の進行方向前方が風向可変部１１４ａ、１１４ｂにより閉塞され、風向可変部１１４ａ、１１４ｂに接した高静圧部９０が形成される。高静圧部９０の等圧線９０ａ（図３参照）は第１〜第４実施形態と同様に風向可変部１１４ａ、１１４ｂに面した調和空気の流通方向に沿って形成される。このため、高圧部９０は送風経路６内の静圧の差によって気流路の流体力学的な壁面を形成し、調和空気が送出方向を滑らかに可変して吹出口５から後方下方に送出される。   As a result, the forward direction of the airflow flowing through the front guide portion 6a is closed by the airflow direction variable portions 114a and 114b, and the high static pressure portion 90 in contact with the airflow direction variable portions 114a and 114b is formed. The isobaric line 90a (see FIG. 3) of the high static pressure part 90 is formed along the flow direction of the conditioned air facing the wind direction variable parts 114a and 114b as in the first to fourth embodiments. For this reason, the high pressure section 90 forms a hydrodynamic wall surface of the air flow path by the difference in the static pressure in the air flow path 6, and the conditioned air is sent from the outlet 5 to the lower rear side with the delivery direction smoothly changed. .

また、高静圧部９０によって流路が絞られ、下流側で再度流路が拡大されている。更に、風向可変部１１４ｂは前方案内部６ａの下壁を吹出口５から外側に延長した仮想面９８と交差するように配置される。従って、第１〜第４実施形態と同様の効果を得ることができる。尚、高静圧部９０は第１〜第４実施形態のように略弓形を成さないためやや送風効率が劣化するが、従来よりも圧力損失を低減して送風効率を向上できる。   Further, the flow path is narrowed by the high static pressure portion 90, and the flow path is expanded again on the downstream side. Furthermore, the wind direction variable part 114b is arrange | positioned so that the virtual wall 98 which extended the lower wall of the front guide part 6a to the outer side from the blower outlet 5 may be crossed. Therefore, the same effects as those in the first to fourth embodiments can be obtained. Although the high static pressure portion 90 does not form a substantially bow shape as in the first to fourth embodiments, the blowing efficiency is slightly deteriorated, but the pressure loss can be reduced and the blowing efficiency can be improved as compared with the conventional one.

尚、図３０に示すように、風向可変部１１４ａを前面パネル３に沿って配置すると室内機１の美観が向上する。この時、風向可変部１１４ａは駆動モータのストッパ（不図示）によって図中、時計回りの回動が規制されている。これにより、該ストッパによって風向可変部１１４ａを所定位置に位置決めする位置決め手段が構成されている。   In addition, as shown in FIG. 30, if the wind direction varying portion 114a is arranged along the front panel 3, the aesthetic appearance of the indoor unit 1 is improved. At this time, the air direction variable portion 114a is restricted from rotating clockwise in the drawing by a stopper (not shown) of the drive motor. Thus, positioning means for positioning the wind direction varying portion 114a at a predetermined position by the stopper is configured.

また、前方案内部６ａの上壁と風向可変部１１４ａとの接触部分が滑らかな曲面により形成されないため高静圧部９０には渦２５が発生して第１、第２実施形態よりも送風効率がやや低下する。しかしながら、従来よりも圧力損失の増加を抑制して第１、第２実施形態と略同等の送風効率を得ることができる。   Further, since the contact portion between the upper wall of the front guide portion 6a and the air direction variable portion 114a is not formed by a smooth curved surface, the vortex 25 is generated in the high static pressure portion 90 and the air blowing efficiency is higher than in the first and second embodiments. Slightly decreases. However, it is possible to obtain an air blowing efficiency substantially equal to that of the first and second embodiments while suppressing an increase in pressure loss as compared with the prior art.

また、図３１に示すように風向可変部１１４ｂの先端を略真下方向に向けて吹出口５から略真下方向に調和空気を送出してもよい。この時、図３２に示すように、前面パネル３に沿って風向可変部１１４ａを配置すると室内機１の美観が向上する。   In addition, as shown in FIG. 31, the conditioned air may be sent out from the air outlet 5 in the substantially downward direction with the tip of the air direction varying portion 114b directed in the substantially downward direction. At this time, as shown in FIG. 32, if the wind direction varying portion 114a is arranged along the front panel 3, the aesthetic appearance of the indoor unit 1 is improved.

また、図３３に示すように、風向可変部１１４ｂを軸側の端部が前方になるように配置して前方吹出しを行ってもよい。しかしながら、前述の図２８において前方下方吹出し時に風向可変部１１４ｂの軸側の端部を後方に配置することによって、後方下方吹出し時（図２９、図３０参照）や略真下方向に送出する際（図３１、図３２参照）に風向可変部１１４ｂをスムーズに移動させることができるのでより望ましい。   Moreover, as shown in FIG. 33, the wind direction variable portion 114b may be arranged so that the end on the shaft side is forward, and the front blowing may be performed. However, in FIG. 28 described above, the shaft side end of the airflow direction changing portion 114b is disposed rearward when the front lower air is blown out, so that when the rear air is blown out rearward (see FIGS. 29 and 30) or when the air is sent in a substantially downward direction ( 31 and 32), it is more preferable because the wind direction variable portion 114b can be moved smoothly.

また、上記構成の空気調和機において冷房運転を開始すると、風向可変部１１４ａ、１１４ｂは図３４に示すように配置される。即ち、風向可変部１１４ａ、１１４ｂは前方案内部６ａを流通する気流に沿って前方下方に傾斜して配置される。この時、風向可変部１１４ａは前述の図２８、図３３に示す暖房運転の前方下方吹出し時よりも前端が上方に配される。これにより、風向可変部１１４ａの両面を気流が通過して低温の調和空気による風向可変部１１４ａ表面の結露を防止することができる。   Further, when the cooling operation is started in the air conditioner having the above-described configuration, the air direction variable portions 114a and 114b are arranged as shown in FIG. In other words, the wind direction variable portions 114a and 114b are disposed to be inclined forward and downward along the airflow flowing through the front guide portion 6a. At this time, the wind direction variable portion 114a is arranged with the front end above the front lower blowing in the heating operation shown in FIGS. Accordingly, it is possible to prevent condensation on the surface of the airflow direction changing portion 114a due to the low-temperature conditioned air as the airflow passes through both surfaces of the airflow direction changing portion 114a.

また、風向可変部１１４ｂは回動軸１１４ｄ側の端部が前方になるように配置されている。そして、調和空気を矢印Ａに示すように前方下方に送出する。これにより、室内機１は前方下方に調和空気を送出する前方下方吹出しの状態になる。   Further, the wind direction varying portion 114b is arranged so that the end on the rotating shaft 114d side is forward. Then, the conditioned air is sent forward and downward as indicated by an arrow A. Thereby, the indoor unit 1 will be in the state of the front downward blowing which sends out conditioned air to the front lower direction.

冷房運転を開始して一定時間が経過した場合や吸込口４より取込んだ空気の温度と設定温度との差が所定温度よりも小さい場合には、図３５に示すように風向可変部１１４ａ、１１４ｂが配置される。即ち、風向可変部１１４ａは前端が後端よりも上方に配され、吹出口５近傍で上方に傾斜した送風経路６の上壁に略平行になっている。風向可変部１１４ｂは軸側の端部が開放側の端部よりも前方下方になるように配される。   When a certain time has elapsed after starting the cooling operation, or when the difference between the temperature of the air taken in from the suction port 4 and the set temperature is smaller than a predetermined temperature, as shown in FIG. 114b is arranged. In other words, the wind direction varying portion 114a is disposed above the rear end at the front end, and is substantially parallel to the upper wall of the air blowing path 6 inclined upward in the vicinity of the blowout port 5. The wind direction variable portion 114b is arranged such that the end on the shaft side is lower forward than the end on the open side.

これにより、調和空気は吹出口５から矢印Ｅに示すように前方上方に例えば風速約５〜６ｍ／秒で送出される。室内に送出された調和空気は前述の図２５と同様に居室Ｒの天井に到達する。その後、コアンダ効果により天井面Ｓから室内機１に対向する壁面Ｗ２、床面Ｆ、室内機１側の壁面Ｗ１を順次伝って室内機１の両側方から吸込口４に吸い込まれる。従って、第４実施形態と同様に、快適性や安全性を向上することができる。   As a result, the conditioned air is sent out from the blow-out port 5 upward and forward, for example, at a wind speed of about 5 to 6 m / sec. The conditioned air sent into the room reaches the ceiling of the living room R as in FIG. Thereafter, the air is sucked into the suction port 4 from both sides of the indoor unit 1 through the wall surface W2 facing the indoor unit 1 from the ceiling surface S, the floor surface F, and the wall surface W1 on the indoor unit 1 side by the Coanda effect. Therefore, comfort and safety can be improved as in the fourth embodiment.

更に、図３６に示すように、風向可変部１１４ａの向きを水平にすると、矢印Ｄに示すように調和空気を吹出口５から水平方向に送出することができる。尚、前述の図３４に示す前方下方吹出し時に風向可変部１１４ｂの軸側を前方に配置することにより、前方上方吹出し時（図３５参照）及び水平方向吹出し時（図３６参照）にスムーズに風向可変部１１４ｂを配置することができる。   Furthermore, as shown in FIG. 36, when the direction of the wind direction varying portion 114a is made horizontal, conditioned air can be sent out from the outlet 5 in the horizontal direction as shown by an arrow D. Incidentally, by arranging the shaft side of the wind direction variable portion 114b forward at the time of the forward and downward blowing shown in FIG. 34, the wind direction can be smoothly made at the time of forward and upward blowing (see FIG. 35) and at the time of horizontal blowing (see FIG. 36). The variable part 114b can be arranged.

図３７は空気調和機の運転停止時の状態を示している。空気調和機の運転を停止すると、風向可変部１１４ａ、１１４ｂにより吹出口が閉塞される。これにより、室内機１の内部を視認できないようになっている。また、前面パネル３に沿って風向可変部１１４ａを配置し、風向可変部１１４ａの下端とキャビネット２の底面とを繋ぐように風向可変部１１４ｂを配置すると、室内機１の美観を向上することができる。尚、使用者によるリモートコントローラの操作によって、縦ルーバ１２及び風向可変部１１４ａ、１１４ｂの位置を可変できるようになっている。   FIG. 37 shows a state when the operation of the air conditioner is stopped. When the operation of the air conditioner is stopped, the air outlets are closed by the wind direction variable portions 114a and 114b. Thereby, the inside of the indoor unit 1 cannot be visually recognized. Moreover, if the wind direction varying portion 114a is disposed along the front panel 3 and the wind direction varying portion 114b is disposed so as to connect the lower end of the wind direction varying portion 114a and the bottom surface of the cabinet 2, the aesthetic appearance of the indoor unit 1 can be improved. it can. Note that the position of the vertical louver 12 and the wind direction variable portions 114a and 114b can be changed by the operation of the remote controller by the user.

＜第６実施形態＞
次に、図３８は第６実施形態の送風装置である空気調和機の室内機１を示す側面断面図である。前述の図２８〜図３７に示す第５実施形態と同様の部分には同一の符号を付している。本実施形態は第５実施形態の風向可変部１１４ａ、１１４ｂに替えて、風向可変部１１５ａ、１１５ｂが設けられる。その他の部分は第５実施形態と同様である。 <Sixth Embodiment>
Next, FIG. 38 is a side cross-sectional view showing the indoor unit 1 of the air conditioner that is the blower of the sixth embodiment. The same parts as those in the fifth embodiment shown in FIGS. 28 to 37 are given the same reference numerals. In the present embodiment, instead of the wind direction variable portions 114a and 114b of the fifth embodiment, wind direction variable portions 115a and 115b are provided. Other parts are the same as those of the fifth embodiment.

風向可変部１１５ａ、１１５ｂは吹出口５に配され、両面が平面の平板から成っている。回動軸１１５ｃ、１１５ｄは風向可変部１１５ａ、１１５ｂを回動可能に支持し、駆動モータ（不図示）によって回転する。これにより、風向可変部１１５ａ、１１５ｂは駆動モータの駆動によって向きを替えて風向を可変する風向板から成っている。また、回動軸１１５ｃは風向可変部１１５ａの略中央に設けられ、回動軸１１５ｄは風向可変部１１５ｂの略中央の風向可変部１１５ｂから所定量離れた位置に設けられる。   The air direction variable portions 115a and 115b are arranged at the outlet 5 and are formed of flat plates having both surfaces. The rotation shafts 115c and 115d rotatably support the air direction variable portions 115a and 115b, and are rotated by a drive motor (not shown). As a result, the wind direction variable portions 115a and 115b are composed of wind direction plates that change the direction of the wind direction by driving the drive motor. Further, the rotation shaft 115c is provided at the approximate center of the wind direction variable portion 115a, and the rotation shaft 115d is provided at a position separated from the wind direction variable portion 115b at the approximate center of the wind direction variable portion 115b by a predetermined amount.

上記構成の空気調和機において、暖房運転を開始すると風向可変部１１５ａ、１１５ｂは同図に示すように配置される。即ち、風向可変部１１５ａ、１１５ｂは前方案内部６ａを流通する気流に沿って配置される。この時、風向可変部１１５ｂの回動軸１１５ｄは風向可変部１１５ｂの上方に配されている。そして、調和空気を矢印Ａに示すように前方下方に送出する。これにより、室内機１は前方下方に調和空気を送出する前方下方吹出しの状態になる。   In the air conditioner having the above-described configuration, when the heating operation is started, the air direction variable portions 115a and 115b are arranged as shown in FIG. That is, the wind direction variable portions 115a and 115b are arranged along the airflow flowing through the front guide portion 6a. At this time, the rotating shaft 115d of the wind direction varying portion 115b is disposed above the wind direction varying portion 115b. Then, the conditioned air is sent forward and downward as indicated by an arrow A. Thereby, the indoor unit 1 will be in the state of the front downward blowing which sends out conditioned air to the front lower direction.

また、図３９に示すように、風向可変部１１５ｂの回動軸１１５ｄを風向可変部１１５ｂの下方に配して前方下方吹出しを行ってもよい。図３８に示すように回動軸１１５ｄを風向可変部１１５ｂの上方に配した場合は、遠方にまで調和空気を到達させることができる。このため、居室が比較的大きい場合に適している。   Further, as shown in FIG. 39, the rotating shaft 115d of the wind direction varying portion 115b may be disposed below the wind direction varying portion 115b to perform forward and downward blowing. As shown in FIG. 38, when the rotating shaft 115d is arranged above the wind direction variable portion 115b, the conditioned air can reach far. For this reason, it is suitable when the living room is relatively large.

また、図３９に示すように回動軸１１５ｄを風向可変部１１５ｂの下方に配した場合は、回動軸１１５ｄを風向可変部１１５ｂの上方に配した場合よりも暖房時に近傍の空間においてきめ細やかな気流制御を行うことができる。このため、居室が比較的小さい場合に適している。従って、居室の大きさに基づいて適時選択することができる。   Further, as shown in FIG. 39, when the rotating shaft 115d is arranged below the airflow direction changing portion 115b, it is finer in the nearby space during heating than when the rotating shaft 115d is arranged above the airflow direction changing portion 115b. Airflow control can be performed. For this reason, it is suitable when the living room is relatively small. Accordingly, it is possible to make a selection in a timely manner based on the size of the living room.

暖房運転を開始して一定時間が経過した場合や吸込口４より取込んだ空気の温度と設定温度との差が所定温度よりも小さい場合には、図４０に示すように風向可変部１１５ａ、１１５ｂが配置される。即ち、風向可変部１１５ａは駆動モータの駆動によって一端が送風経路６の上壁に接して前方案内部６ａの上壁を延長するように配される。風向可変部１１５ｂは一端が風向可変部１１５ａに近接し、他端が略真下方向に向けて配される。尚、風向可変部１１５ａ、１１５ｂ間の隙間は極めて小さく、調和空気がこの隙間から漏れる量は極めて微量である。   When a certain time has elapsed after starting the heating operation, or when the difference between the temperature of the air taken in from the suction port 4 and the set temperature is smaller than a predetermined temperature, as shown in FIG. 115b is arranged. That is, the wind direction variable portion 115a is arranged so that one end thereof is in contact with the upper wall of the air blowing path 6 by the drive motor and extends the upper wall of the front guide portion 6a. One end of the wind direction varying portion 115b is arranged close to the wind direction varying portion 115a, and the other end is arranged substantially downward. Note that the gap between the wind direction variable portions 115a and 115b is extremely small, and the amount of conditioned air leaking from the gap is extremely small.

この時、風向可変部１１５ａは送風経路６の上壁に当接して位置決めされる。従って、送風経路６の上壁によって風向可変部１１５ａを所定位置に位置決めする位置決め手段が構成され、静圧の差による気流路の壁面を形成する位置に風向可変部１１５ａを配置する。これにより、風向可変部１１５ａの配置を管理して、確実に気流路の壁面を形成することができる。尚、風向可変部１１５ｂは駆動モータの回転量の制御によって同図に示す位置に配置される。   At this time, the air direction varying portion 115a is positioned in contact with the upper wall of the air blowing path 6. Therefore, positioning means for positioning the air direction variable portion 115a at a predetermined position is configured by the upper wall of the air blowing path 6, and the air direction variable portion 115a is arranged at a position where the wall surface of the air flow path due to the difference in static pressure is formed. Thereby, the arrangement of the wind direction variable portion 115a can be managed to reliably form the wall surface of the air flow path. The wind direction variable portion 115b is disposed at the position shown in the figure by controlling the rotation amount of the drive motor.

これにより、前方案内部６ａを流通する気流の進行方向前方が風向可変部１１５ａ、１１５ｂにより閉塞され、風向可変部１１５ａ、１１５ｂに接した高静圧部９０が形成される。高静圧部９０の等圧線９０ａ（図３参照）は第１〜第５実施形態と同様に風向可変部１１５ａ、１１５ｂに面した調和空気の流通方向に沿って形成される。このため、高圧部９０は送風経路６内の静圧の差によって気流路の流体力学的な壁面を形成し、調和空気が送出方向を滑らかに可変して吹出口５から後方下方に送出される。   As a result, the forward direction of the airflow flowing through the front guide portion 6a is blocked by the wind direction variable portions 115a and 115b, and the high static pressure portion 90 in contact with the wind direction variable portions 115a and 115b is formed. The isobaric line 90a (see FIG. 3) of the high static pressure part 90 is formed along the flow direction of the conditioned air facing the wind direction variable parts 115a and 115b as in the first to fifth embodiments. For this reason, the high pressure section 90 forms a hydrodynamic wall surface of the air flow path by the difference in the static pressure in the air flow path 6, and the conditioned air is sent from the outlet 5 to the lower rear side with the delivery direction smoothly changed. .

また、高静圧部９０によって流路が絞られ、下流側で再度流路が拡大されている。更に、風向可変部１１５ｂは前方案内部６ａの下壁を吹出口５から外側に延長した仮想面９８と交差するように配置される。従って、第１〜第５実施形態と同様の効果を得ることができる。尚、高静圧部９０は第１〜第４実施形態のように略弓形を成さないためやや送風効率が劣化するが、従来よりも圧力損失を低減して送風効率を向上できる。   Further, the flow path is narrowed by the high static pressure portion 90, and the flow path is expanded again on the downstream side. Furthermore, the wind direction variable part 115b is arrange | positioned so that the virtual wall 98 which extended the lower wall of the front guide part 6a outside from the blower outlet 5 may be crossed. Therefore, the same effects as those of the first to fifth embodiments can be obtained. Although the high static pressure portion 90 does not form a substantially bow shape as in the first to fourth embodiments, the blowing efficiency is slightly deteriorated, but the pressure loss can be reduced and the blowing efficiency can be improved as compared with the conventional one.

また、風向可変部１１５ｂは回動軸１１５ｄが端部に設けられず、略中央の所定量離れて設けられるため、第５実施形態に比して少ないトルクで回動させることができる。従って、駆動モータの省電力化や駆動モータ出力のスペックダウンによる低コスト化を図ることができる。   Further, the wind direction variable portion 115b is not provided with the rotation shaft 115d at the end portion, and is provided at a predetermined distance from the center, so that it can be rotated with less torque than in the fifth embodiment. Therefore, it is possible to reduce the cost by reducing the power consumption of the drive motor and reducing the specifications of the drive motor output.

尚、図４１に示すように風向可変部１１５ｂの先端を真下方向からやや前方に向けて吹出口５から矢印Ｂに示すように略真下方向に調和空気を送出してもよい。前述の図３９において前方下方吹出し時に風向可変部１１５ｂの回動軸１１５ｄを下方に配置することによって、後方下方吹出し時（図４０参照）や略真下方向に送出する際（図４１参照）に風向可変部１１５ｂをスムーズに移動させることができる。   In addition, as shown in FIG. 41, you may send conditioned air to a substantially downward direction as shown by the arrow B from the blower outlet 5, with the front-end | tip of the wind direction variable part 115b facing a little forward from the downward direction. 39, the rotating shaft 115d of the wind direction varying portion 115b is disposed below when blowing forward and downward, so that the wind direction is used when blowing backward and downward (see FIG. 40) or when sending out substantially downward (see FIG. 41). The variable part 115b can be moved smoothly.

また、上記構成の空気調和機において冷房運転を開始すると、風向可変部１１５ａ、１１５ｂは前述の図３８に示すように配置される。この時、風向可変部１１５ａは暖房時に比べて外側端部がやや上になるように設定される。これにより、風向可変部１１５ａの両面に調和空気を流通させて風向可変部１１５ａの発露を防止することができる。そして、調和空気を矢印Ａに示すように前方下方に送出する。これにより、室内機１は前方下方に調和空気を送出する前方下方吹出しの状態になる。   Further, when the cooling operation is started in the air conditioner having the above-described configuration, the air direction variable portions 115a and 115b are arranged as shown in FIG. At this time, the wind direction variable portion 115a is set so that the outer end portion is slightly higher than that during heating. Thereby, conditioned air can be circulated on both surfaces of the wind direction variable portion 115a to prevent the wind direction variable portion 115a from dewing. Then, the conditioned air is sent forward and downward as indicated by an arrow A. Thereby, the indoor unit 1 will be in the state of the front downward blowing which sends out conditioned air to the front lower direction.

冷房運転を開始して一定時間が経過した場合や吸込口４より取込んだ空気の温度と設定温度との差が所定温度よりも小さい場合には、図４２に示すように風向可変部１１５ａ、１１５ｂが配置される。即ち、風向可変部１１５ａは前端が後端よりも上方に配され、吹出口５近傍で上方に傾斜した送風経路６の上壁に略平行になっている。風向可変部１１５ｂは外側の端部が内側の端部よりも前方下方になるように配される。   When a certain time has elapsed since the start of the cooling operation or when the difference between the temperature of the air taken in from the suction port 4 and the set temperature is smaller than the predetermined temperature, as shown in FIG. 115b is arranged. In other words, the wind direction varying portion 115a is arranged so that the front end is located above the rear end, and is substantially parallel to the upper wall of the air blowing path 6 inclined upward in the vicinity of the outlet 5. The wind direction variable portion 115b is arranged so that the outer end portion is lower forward than the inner end portion.

これにより、調和空気は吹出口５から矢印Ｅに示すように前方上方に例えば風速約５〜６ｍ／秒で送出される。室内に送出された調和空気は前述の図２５と同様に居室Ｒの天井に到達する。その後、コアンダ効果により天井面Ｓから室内機１に対向する壁面Ｗ２、床面Ｆ、室内機１側の壁面Ｗ１を順次伝って室内機１の両側方から吸込口４に吸い込まれる。従って、第４、第５実施形態と同様に、快適性や安全性を向上することができる。   As a result, the conditioned air is sent out from the blow-out port 5 upward and forward, for example, at a wind speed of about 5 to 6 m / sec. The conditioned air sent into the room reaches the ceiling of the living room R as in FIG. Thereafter, the air is sucked into the suction port 4 from both sides of the indoor unit 1 through the wall surface W2 facing the indoor unit 1 from the ceiling surface S, the floor surface F, and the wall surface W1 on the indoor unit 1 side by the Coanda effect. Therefore, comfort and safety can be improved as in the fourth and fifth embodiments.

更に、図４３に示すように、風向可変部１１５ａの向きを水平にすると、矢印Ｄに示すように調和空気を吹出口５から水平方向に送出することができる。尚、前述の図３８に示す前方下方吹出し時に風向可変部１１５ｂの回動軸１１５ｄを風向可変部１１５ｂの上方に配置することにより、前方上方吹出し時（図４２参照）及び水平方向吹出し時（図４３参照）にスムーズに風向可変部１１５ｂを配置することができる。   Furthermore, as shown in FIG. 43, when the direction of the wind direction variable portion 115a is made horizontal, conditioned air can be sent out from the blowout port 5 in the horizontal direction as shown by an arrow D. 38, the rotating shaft 115d of the air direction varying portion 115b is disposed above the air direction varying portion 115b at the time of forward lower blowing, as shown in FIG. 43) can be smoothly arranged.

図４４は空気調和機の運転停止時の状態を示している。空気調和機の運転を停止すると、風向可変部１１５ａ、１１５ｂにより吹出口が閉塞される。これにより、室内機１の内部を視認できないようになっている。また、前面パネル３に沿って風向可変部１１５ａを配置し、風向可変部１１５ａの下端とキャビネット２の底面とを繋ぐように風向可変部１１５ｂを配置すると、室内機１の美観を向上することができる。尚、使用者によるリモートコントローラの操作によって、縦ルーバ１２及び風向可変部１１５ａ、１１５ｂの位置を可変できるようになっている。   FIG. 44 shows a state when the operation of the air conditioner is stopped. When the operation of the air conditioner is stopped, the air outlets are closed by the air direction variable portions 115a and 115b. Thereby, the inside of the indoor unit 1 cannot be visually recognized. Further, if the wind direction varying portion 115a is arranged along the front panel 3 and the wind direction varying portion 115b is arranged so as to connect the lower end of the wind direction varying portion 115a and the bottom surface of the cabinet 2, the aesthetic appearance of the indoor unit 1 can be improved. it can. Note that the position of the vertical louver 12 and the wind direction variable portions 115a and 115b can be changed by the operation of the remote controller by the user.

以上本発明に係る送風装置の実施形態として空気調和機を説明したが、本発明は上記各実施形態に限定されず、本発明の趣旨を逸脱しない範囲で適宜の変更を加えて送風機を有する送風装置に適用することができる。   Although the air conditioner has been described as an embodiment of the blower according to the present invention, the present invention is not limited to the above-described embodiments, and a blower having a blower with appropriate modifications without departing from the gist of the present invention. It can be applied to the device.

は、本発明の第１実施形態の空気調和機の室内機の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front lower blowing of the indoor unit of the air conditioner of 1st Embodiment of this invention. は、本発明の第１実施形態の空気調和機の室内機の後方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the back downward blowing of the indoor unit of the air conditioner of 1st Embodiment of this invention. は、本発明の第１実施形態の空気調和機の室内機の後方下方吹出しの状態のときの吹出口近傍の静圧分布を示す図である。These are figures which show the static pressure distribution of the blower outlet vicinity at the time of the back downward blowing state of the indoor unit of the air conditioner of 1st Embodiment of this invention. は、本発明の第１実施形態の空気調和機の室内機の送風ファンの回転数と風量の関係を示す図である。These are figures which show the relationship between the rotation speed of the ventilation fan of the indoor unit of the air conditioner of 1st Embodiment of this invention, and an air volume. は、本発明の第１実施形態の空気調和機の室内機の送風ファンの風量と騒音の関係を示す図である。These are figures which show the relationship between the air volume and noise of the ventilation fan of the indoor unit of the air conditioner of 1st Embodiment of this invention. は、本発明の第１実施形態の空気調和機の室内機の後方下方吹出しの状態のときの居室内の気流の挙動を示す透視斜視図である。These are the perspective views which show the behavior of the airflow in a living room in the state of the back downward blowing of the indoor unit of the air conditioner of 1st Embodiment of this invention. は、本発明の第１実施形態の空気調和機の室内機の水平吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the horizontal blowing of the indoor unit of the air conditioner of 1st Embodiment of this invention. は、本発明の第１実施形態に係る他の態様の空気調和機の室内機の後方下方吹出しの状態のときの居室内の気流の挙動を示す透視斜視図である。These are the perspective views which show the behavior of the airflow in a room when the state of the back downward blowing of the indoor unit of the air conditioner of the other aspect which concerns on 1st Embodiment of this invention. は、本発明の第２実施形態の空気調和機の室内機の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front lower blowing of the indoor unit of the air conditioner of 2nd Embodiment of this invention. は、本発明の第２実施形態の空気調和機の室内機の後方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the back downward blowing of the indoor unit of the air conditioner of 2nd Embodiment of this invention. は、本発明の第２実施形態の空気調和機の室内機の風向可変部の動作を説明する側面断面図である。These are side surface sectional drawings explaining operation | movement of the wind direction variable part of the indoor unit of the air conditioner of 2nd Embodiment of this invention. は、本発明の第３実施形態の空気調和機の室内機の暖房運転時の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 3rd Embodiment of this invention. は、本発明の第３実施形態の空気調和機の室内機の暖房運転時の後方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the back downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 3rd Embodiment of this invention. は、本発明の第３実施形態の空気調和機の室内機の冷房運転時の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front downward blowing at the time of air_conditionaing | cooling operation of the indoor unit of the air conditioner of 3rd Embodiment of this invention. は、本発明の第３実施形態の空気調和機の室内機の冷房運転時の水平方向吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the horizontal direction blowing at the time of air_conditionaing | cooling operation of the indoor unit of the air conditioner of 3rd Embodiment of this invention. は、本発明の第３実施形態の空気調和機の室内機の停止時の状態を示す側面断面図である。These are side surface sectional drawings which show the state at the time of the stop of the indoor unit of the air conditioner of 3rd Embodiment of this invention. は、本発明の第４実施形態の空気調和機の室内機の暖房運転時の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 4th Embodiment of this invention. は、本発明の第４実施形態の空気調和機の室内機の暖房運転時の他の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the other front downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 4th Embodiment of this invention. は、本発明の第４実施形態の空気調和機の室内機の暖房運転時の後方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the back downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 4th Embodiment of this invention. は、本発明の第４実施形態の空気調和機の室内機の暖房運転時の他の後方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of another back downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 4th Embodiment of this invention. は、本発明の第４実施形態の空気調和機の室内機の暖房運転時の真下方向吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the right direction blowing at the time of the heating operation of the indoor unit of the air conditioner of 4th Embodiment of this invention. は、本発明の第４実施形態の空気調和機の室内機の暖房運転時の他の真下方向吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the other downward direction blowing at the time of the heating operation of the indoor unit of the air conditioner of 4th Embodiment of this invention. は、本発明の第４実施形態の空気調和機の室内機の冷房運転時の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front downward blowing at the time of the cooling operation of the indoor unit of the air conditioner of 4th Embodiment of this invention. は、本発明の第４実施形態の空気調和機の室内機の冷房運転時の前方上方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front upper blowing at the time of the cooling operation of the indoor unit of the air conditioner of 4th Embodiment of this invention. は、本発明の第４実施形態の空気調和機の室内機の前方上方吹出しの状態のときの居室内の気流の挙動を示す透視斜視図である。These are the perspective views which show the behavior of the airflow in a living room in the state of the front upper blowing of the indoor unit of the air conditioner of 4th Embodiment of this invention. は、本発明の第４実施形態の空気調和機の室内機の冷房運転時の水平方向吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the horizontal direction blowing at the time of the cooling operation of the indoor unit of the air conditioner of 4th Embodiment of this invention. は、本発明の第４実施形態の空気調和機の室内機の停止時の状態を示す側面断面図である。These are side surface sectional drawings which show the state at the time of the stop of the indoor unit of the air conditioner of 4th Embodiment of this invention. は、本発明の第５実施形態の空気調和機の室内機の暖房運転時の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 5th Embodiment of this invention. は、本発明の第５実施形態の空気調和機の室内機の暖房運転時の後方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the back downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 5th Embodiment of this invention. は、本発明の第５実施形態の空気調和機の室内機の暖房運転時の他の後方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the other back downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 5th Embodiment of this invention. は、本発明の第５実施形態の空気調和機の室内機の暖房運転時の真下方向吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the direct downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 5th Embodiment of this invention. は、本発明の第５実施形態の空気調和機の室内機の暖房運転時の他の真下方向吹出しの状態を示す側面断面図である。These are side surface sectional views which show the state of the other downward direction blowing at the time of the heating operation of the indoor unit of the air conditioner of 5th Embodiment of this invention. は、本発明の第５実施形態の空気調和機の室内機の暖房運転時の他の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the other front downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 5th Embodiment of this invention. は、本発明の第５実施形態の空気調和機の室内機の冷房運転時の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front downward blowing at the time of the cooling operation of the indoor unit of the air conditioner of 5th Embodiment of this invention. は、本発明の第５実施形態の空気調和機の室内機の冷房運転時の前方上方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front upper blowing at the time of the cooling operation of the indoor unit of the air conditioner of 5th Embodiment of this invention. は、本発明の第５実施形態の空気調和機の室内機の冷房運転時の水平方向吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the horizontal direction blowing at the time of the cooling operation of the indoor unit of the air conditioner of 5th Embodiment of this invention. は、本発明の第５実施形態の空気調和機の室内機の停止時の状態を示す側面断面図である。These are side surface sectional drawings which show the state at the time of the stop of the indoor unit of the air conditioner of 5th Embodiment of this invention. は、本発明の第６実施形態の空気調和機の室内機の暖房運転時の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 6th Embodiment of this invention. は、本発明の第６実施形態の空気調和機の室内機の暖房運転時の他の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the other front downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 6th Embodiment of this invention. は、本発明の第６実施形態の空気調和機の室内機の暖房運転時の後方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the back downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 6th Embodiment of this invention. は、本発明の第６実施形態の空気調和機の室内機の暖房運転時の真下方向吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the direct downward blowing at the time of the heating operation of the indoor unit of the air conditioner of 6th Embodiment of this invention. は、本発明の第６実施形態の空気調和機の室内機の冷房運転時の前方上方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front upper blowing at the time of the cooling operation of the indoor unit of the air conditioner of 6th Embodiment of this invention. は、本発明の第６実施形態の空気調和機の室内機の冷房運転時の水平方向吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the horizontal direction blowing at the time of the cooling operation of the indoor unit of the air conditioner of 6th Embodiment of this invention. は、本発明の第６実施形態の空気調和機の室内機の停止時の状態を示す側面断面図である。These are side surface sectional drawings which show the state at the time of the stop of the indoor unit of the air conditioner of 6th Embodiment of this invention. は、第１実施形態の空気調和機と比較する比較例の空気調和機の室内機を示す側面断面図である。These are side surface sectional drawings which show the indoor unit of the air conditioner of the comparative example compared with the air conditioner of 1st Embodiment. は、第１実施形態の空気調和機と比較する比較例の空気調和機の室内機の吹出口近傍の静圧分布を示す図である。These are figures which show the static pressure distribution of the blower outlet vicinity of the indoor unit of the air conditioner of the comparative example compared with the air conditioner of 1st Embodiment. は、従来の空気調和機の室内機の前方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the front lower blowing of the indoor unit of the conventional air conditioner. は、従来の空気調和機の室内機の真下方向吹出しの状態を示す側面断面図である。These are side surface sectional views which show the state of the downward blowing of the indoor unit of the conventional air conditioner. は、従来の空気調和機の室内機の後方下方吹出しの状態を示す側面断面図である。These are side surface sectional drawings which show the state of the back downward blowing of the indoor unit of the conventional air conditioner. は、従来の空気調和機の室内機の前方下方吹出しの状態のときの吹出口近傍の静圧分布を示す図である。These are figures which show the static pressure distribution of the blower outlet vicinity at the time of the state of the front lower blowing of the indoor unit of the conventional air conditioner. は、従来の空気調和機の室内機の真下方向吹出しの状態のときの吹出口近傍の静圧分布を示す図である。These are figures which show the static pressure distribution of the blower outlet vicinity at the time of the state of the blowing of the downward direction of the indoor unit of the conventional air conditioner. は、従来の空気調和機の室内機の後方下方吹出しの状態のときの吹出口近傍の静圧分布を示す図である。These are figures which show the static pressure distribution of the blower outlet vicinity at the time of the back downward blowing state of the indoor unit of the conventional air conditioner.

符号の説明Explanation of symbols

１ 室内機
２ キャビネット
３ フロントパネル
４ 吸込口
５ 吹出口
６ 送風経路
７ 送風ファン
８ エアフィルタ
９ 室内熱交換器
１０ ドレンパン
１２ 縦ルーバ
２５ 渦
６１ 温度センサ
９０ 高静圧部
９８ 仮想面
１１０ａ、１１０ｂ、１１１ａ、１１１ｂ、１１２ａ、１１２ｂ、１１３ａ、１１３ｂ、１１３ｃ、１１４ａ、１１４ｂ、１１５ａ、１１５ｂ 風向可変部 DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Cabinet 3 Front panel 4 Suction port 5 Air outlet 6 Air supply path 7 Blower fan 8 Air filter 9 Indoor heat exchanger 10 Drain pan 12 Vertical louver 25 Vortex 61 Temperature sensor 90 High static pressure part 98 Virtual surface 110a, 110b, 111a, 111b, 112a, 112b, 113a, 113b, 113c, 114a, 114b, 115a, 115b Wind direction variable portion

Claims (7)

室内の空気を取り入れる吸込口と、前記吸込口から取り入れて調和された調和空気を室内に送出する吹出口と、調和空気を前記吹出口に導く送風経路と、を備え、室内の壁面に取り付けられて運転を行う空気調和機において、
前記吹出口の上部に回動可能に支持され、調和空気の風向を可変する第１風向可変部と、第１風向可変部の下方に回動可能に支持され、調和空気の風向を可変する第２風向可変部と、前記送風経路の下壁終端部に回動可能に支持され、調和空気の風向を可変する第３風向可変部と、を備え、
前記送風経路の上壁を延長するように第１、第２風向可変部を配置するとともに、第３風向可変部を前記送風経路の下壁を延長するように配置して、前記吹出口から調和空気を略真下方向または後方下方に送出し、
前記送風経路を流通する気流に略平行かつ気流を二分するように第１、第２風向可変部を配置するとともに、第３風向可変部を前記送風経路の下壁を延長するように配置して、前記吹出口から調和空気を前方下方に送出することを特徴とする空気調和機。 A suction port for taking in indoor air, a blowout port for sending conditioned air harmonized by taking in from the suction port to the room, and a ventilation path for guiding conditioned air to the blowout port, which are attached to the wall surface of the room In the air conditioner that operates
A first wind direction variable portion that is rotatably supported at the upper portion of the air outlet and varies the wind direction of the conditioned air, and a first wind direction variable portion that is pivotally supported below the first wind direction variable portion and that varies the wind direction of the conditioned air. Two wind direction variable portions, and a third wind direction variable portion that is rotatably supported by the lower wall end portion of the ventilation path and varies the wind direction of the conditioned air,
The first and second wind direction variable parts are arranged so as to extend the upper wall of the air flow path, and the third wind direction variable part is arranged so as to extend the lower wall of the air flow path, and is harmonized from the air outlet. Air is sent almost downward or backward and downward,
The first and second airflow direction variable portions are arranged so as to be substantially parallel to the airflow flowing through the air flow path and bisect the airflow, and the third airflow direction variable portion is arranged so as to extend the lower wall of the air flow path. An air conditioner that sends conditioned air downward and forward from the outlet. 室内に送出する調和空気の風向を左右方向で可変する左右風向可変部を前記送風経路内にさらに備え、
空気調和機の運転停止時には、第１風向可変部により前記吹出口の上部が閉塞されるとともに、第２風向可変部により前記吹出口の下部が閉塞され、
第３風向可変部は、前記送風経路内であって第１、第２風向可変部により閉塞された前記吹出口の後方かつ前記左右風向可変部の前方の位置で、先端を上方に向けて配置されることを特徴とする請求項１に記載の空気調和機。 The air flow path further includes a left / right airflow direction varying portion that varies the airflow direction of the conditioned air to be sent into the room in the left / right direction,
When the operation of the air conditioner is stopped, the upper portion of the outlet is closed by the first wind direction variable portion, and the lower portion of the outlet is closed by the second wind direction variable portion,
The third wind direction variable portion is disposed in the air flow path at a position behind the outlet and front of the left / right wind direction variable portion closed by the first and second wind direction variable portions. The air conditioner according to claim 1, wherein 室内の空気を取り入れる吸込口と、前記吸込口から取り入れて調和された調和空気を室内に送出する吹出口と、調和空気を前記吹出口に導く送風経路と、を備え、室内の壁面に取り付けられて運転を行う空気調和機において、
前記吹出口に回動可能に配置され、調和空気の風向を可変する第１風向可変部と、前記送風経路の下壁終端部に回動可能に配置され、調和空気の風向を可変する第２風向可変部と、を備え、
前記送風経路の下壁に回動可能に枢支されるとともに回動可能な関節部を有する腕部材によって第１風向可変部は回動可能に支持され、
第１風向可変部を前記送風経路の上壁を延長する位置に配するとともに先端を下方に向けて配置し、第２風向可変部を前記送風経路の下壁を延長するように配置するとともに先端を下方に向けて配置して、前記吹出口から調和空気を略真下方向または後方下方に送出し、
第１、第２風向可変部を先端を下方に向けて配置するとともに、第１、第２風向可変部を対向させるように配置して、前記吹出口から調和空気を前方下方に送出することを特徴とする空気調和機。 A suction port for taking in indoor air, a blowout port for sending conditioned air harmonized by taking in from the suction port to the room, and a ventilation path for guiding conditioned air to the blowout port, which are attached to the wall surface of the room In the air conditioner that operates
The 1st wind direction variable part arrange | positioned at the said blower outlet so that rotation is possible, and the 2nd which is arrange | positioned at the lower wall terminal part of the said ventilation path so that rotation of the wind direction of conditioned air is variable, and varies the wind direction of conditioned air. A wind direction variable part,
The first wind direction variable portion is rotatably supported by an arm member pivotally supported on the lower wall of the air flow path and having a rotatable joint.
The first wind direction variable portion is arranged at a position extending the upper wall of the air flow path, the tip is disposed downward, and the second wind direction variable portion is disposed so as to extend the lower wall of the air flow path, and the front end. Is arranged facing downward, and conditioned air is sent out from the outlet in a substantially downward direction or backward and downward,
The first and second wind direction variable parts are arranged with the tips facing downward, and the first and second wind direction variable parts are arranged to face each other, and the conditioned air is sent forward and downward from the air outlet. A featured air conditioner. 室内に送出する調和空気の風向を左右方向で可変する左右風向可変部を前記送風経路内にさらに備え、
空気調和機の運転停止時には、第１風向可変部が前記吹出口を閉塞し、
第２風向可変部は、前記送風経路内であって第１風向可変部により閉塞された前記吹出口の後方かつ前記左右風向可変部の前方の位置で、先端を上方に向けて配置されることを特徴とする請求項３に記載の空気調和機。 The air flow path further includes a left / right airflow direction varying portion that varies the airflow direction of the conditioned air to be sent into the room in the left / right direction,
When the operation of the air conditioner is stopped, the first wind direction variable portion closes the outlet,
The second wind direction variable portion is disposed in the air blowing path at a position behind the outlet and in front of the left and right wind direction variable portion blocked by the first wind direction variable portion with the tip facing upward. The air conditioner according to claim 3. 前記送風経路は前方下方に向けて調和空気を案内する前方案内部を有し、
第１、第２風向可変部は断面形状が湾曲して形成され、
前記吹出口から調和空気を前方下方に送出する際に、
第１風向可変部を先端を下方に向けて下面側が凹になるように配置するとともに、第２風向可変部を先端を下方に向けて前記送風経路側が凸になるように配置し、
第１、第２風向可変部を前記前方案内部に沿って配置して、
調和空気の流路が下流に行くほど断面積が拡大されることを特徴とする請求項３または請求項４に記載の空気調和機。 The air flow path has a front guide portion that guides conditioned air toward the front lower side,
The first and second wind direction variable portions are formed with curved cross-sectional shapes,
When sending conditioned air downward and forward from the outlet,
The first wind direction variable portion is arranged so that the tip is directed downward and the lower surface side is concave, and the second wind direction variable portion is arranged so that the tip is directed downward and the air flow path side is convex,
The first and second wind direction variable parts are arranged along the front guide part,
5. The air conditioner according to claim 3, wherein the cross-sectional area is increased as the flow path of the conditioned air goes downstream. 前記吸込口から吸い込まれた空気の温度を検知する温度検知手段を備え、
暖房運転を開始して一定時間が経過した場合または前記吸込口より取り込んだ空気の温度と設定温度との差が所定温度よりも小さい場合には、
第１風向可変部は前記送風経路の上壁に一端部が接触して前記送風経路の上壁を延長する位置に配されるとともに、他端部は下方に向けて配置され、
第２風向可変部は前記送風経路側が凸になるように先端が下方に向けて配置されることを特徴とする請求項５に記載の空気調和機。 Comprising temperature detecting means for detecting the temperature of the air sucked from the suction port,
When a certain time has elapsed after starting the heating operation or when the difference between the temperature of the air taken in from the suction port and the set temperature is smaller than a predetermined temperature,
The first wind direction variable portion is disposed at a position where one end of the first air direction variable portion comes into contact with the upper wall of the air passage and extends the upper wall of the air passage, and the other end portion is disposed downward.
The air conditioner according to claim 5, wherein the second wind direction variable portion is disposed with a tip downward so that the air flow path side is convex. 第１、第２風向可変部により前記送風経路を延長し、延長された送風経路の終端となる第１、第２風向可変部の下流側端部を後方下方に向けて配置することを特徴とする請求項６に記載の空気調和機。   The air flow path is extended by the first and second wind direction variable portions, and the downstream side end portions of the first and second wind direction variable portions serving as the end of the extended air flow path are arranged rearward and downward. The air conditioner according to claim 6.
JP2003400465A 2003-11-28 2003-11-28 Air conditioner Expired - Fee Related JP4004459B2 (en)

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