JP4897379B2 - Air conditioner - Google Patents
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- JP4897379B2 JP4897379B2 JP2006202696A JP2006202696A JP4897379B2 JP 4897379 B2 JP4897379 B2 JP 4897379B2 JP 2006202696 A JP2006202696 A JP 2006202696A JP 2006202696 A JP2006202696 A JP 2006202696A JP 4897379 B2 JP4897379 B2 JP 4897379B2
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Description
この発明は、熱交換器と送風ファンとを収納する風路を介して連通する空気吸込口及び空気吹出口を有する空気調和機に関するもので、詳しくは、空気吹出口に設けられる風向板の結露を抑制する技術に関するものである。尚、空気調和機として、天井吊り下げ形空気調和機を例に説明する。 The present invention relates to an air conditioner having an air suction port and an air outlet that communicate with each other via an air passage that houses a heat exchanger and a blower fan, and more specifically, condensation of a wind direction plate provided at the air outlet. It is related with the technique which suppresses. A ceiling-suspended air conditioner will be described as an example of the air conditioner.
天井吊り下げ形空気調和機は、筐体の下面に空気吸込口があり、この空気吸込口から室内空気を送風ファンにより風路内に吸い込み、風路に設けられる熱交換器で冷媒と室内空気とを熱交換させて二次空気とし、筐体の前面に設けられる吹出口から風向板で風向が制御された吹出し空気が吹出される（例えば、特許文献１参照）。
天井吊り下げ形空気調和機は、前面に形成された左右に長い略矩形状の吹出口から吹出し空気が吹出されるが、吹出口の左右方向両端部では、壁の影響により吹出口の中央部よりも風速が遅くなる。特に、風向板を下に向けた冷房下吹き時に、風向板の先端（上下方向において、下になる端部）に吹出し空気が到達しないため、温度の高い室内空気を巻き込みやすく、冷房下吹き時に、風向板の先端に結露が発生する場合がある。 The ceiling-suspended air conditioner blows air from a substantially rectangular air outlet that is long on the left and right, formed at the front, but at both ends of the air outlet in the left-right direction, the center of the air outlet is affected by the wall. Wind speed is slower than. In particular, when blowing down the cooling air with the wind direction plate facing down, the blown air does not reach the tip of the wind direction plate (the lower end in the vertical direction). Condensation may occur at the tip of the wind direction plate.
下向きの風向板の天井吊り下げ形空気調和機の前面側の面を表面とし、その裏側を裏面とすると、吹出口の左右方向両端部において、風向板の裏面は全面に温度の低い吹出し空気が沿って流れる。しかし、風向板の表面は、吹出口の左右方向両端部では風速が遅くなるため風向板の先端まで吹出し空気が到達しない場合がある。その場合には、風向板の先端に温度の高い室内空気を巻き込み、風向板の先端では、裏面よりも表面の温度が高くなり、表面側に結露が生じる。 When the front side of the ceiling-suspended air conditioner with the downward facing wind direction plate is the front side and the back side is the back side, the low-temperature blown air is applied to the entire back side of the wind direction plate at both ends in the left and right direction of the outlet. Flowing along. However, on the surface of the wind direction plate, the wind speed may be slow at both ends in the left and right direction of the air outlet, so the blown air may not reach the tip of the wind direction plate. In that case, high-temperature room air is entrapped at the tip of the wind direction plate, and at the tip of the wind direction plate, the surface temperature is higher than the back surface, and condensation occurs on the surface side.
冷房下吹き時の、風向板の表面の先端における結露を抑制するために、冷房下吹き時に吹出し空気が吹出口の両端部においても風向板の先端に到達するように吹出口全体の上顎部の形状を下向きにすると、水平吹き時に吹出口中央部の風速が早くなり吹出口の上顎部付近の気流が乱れ、冷房運転時に吹出口の上顎部に結露が生じたり、風路の圧損が大きくなるという課題があった。 In order to suppress condensation at the front end of the surface of the wind direction plate during cooling down blowing, the upper jaw part of the entire outlet is arranged so that the blown air reaches the tip of the wind direction plate at both ends of the outlet as well. If the shape is downward, the wind speed at the center of the outlet becomes faster during horizontal blowing, the airflow near the upper jaw of the outlet becomes turbulent, condensation occurs at the upper jaw of the outlet during cooling operation, and the pressure loss of the air passage increases. There was a problem.
この発明は、上記のような課題を解決するためになされたもので、吹出口の風向板による吹出し方向が、下吹き、水平吹きのいずれにおいても結露耐力に優れ、且つ風路圧損が小さい空気調和機を提供することを目的とする。 The present invention has been made to solve the above-described problems. The air blowing direction of the air outlet plate at the air outlet is excellent in dew condensation resistance in both the bottom blowing and the horizontal blowing, and the air path pressure loss is small. The purpose is to provide a harmony machine.
この発明に係る空気調和機は、空気調和機本体と、この本体の前面に左右方向に長く形成され、吹出し空気を吹出す吹出口と、この吹出口の上部を形成し、上流側が下方に傾斜する上顎部と、吹出口の下部を形成する下顎部と、吹出口に設けられ、上顎部及び下顎部と共に吹出し空気の上下方向の風向を制御する風向板とを備え、風向板を下吹きにした場合に、上顎部の上流側に沿って流れる吹出し空気が風向板の先端まで到達するように、上顎部の両端部の形状を、上顎部の中央部の形状と異なる構成としたことを特徴とする。 The air conditioner according to the present invention is formed in the air conditioner main body, the front surface of the main body in the left-right direction, the blowout outlet for blowing out the blown air, and the upper portion of the blowout outlet, and the upstream side is inclined downward. An upper jaw portion, a lower jaw portion forming a lower portion of the air outlet, and a wind direction plate that is provided at the air outlet and controls the air direction in the vertical direction of the blown air together with the upper jaw portion and the lower jaw portion. In this case, the shape of both ends of the upper jaw is different from the shape of the central portion of the upper jaw so that the blown air flowing along the upstream side of the upper jaw reaches the tip of the wind direction plate. And
この発明に係る空気調和機は、上記構成により、吹出口の風向板による吹出し方向が、下吹き、水平吹きのいずれにおいても結露耐力に優れ吹出口の植毛が不要になるためコスト低減でき、且つ風路圧損が小さいので乱れの小さい滑らかな流れを提供できる。 The air conditioner according to the present invention has the above-described configuration, and the blowing direction by the wind direction plate of the blower outlet is excellent in dew condensation resistance in both the bottom blow and the horizontal blow, and the cost of the blow outlet can be reduced, and the cost can be reduced. Since the wind path pressure loss is small, a smooth flow with little turbulence can be provided.
実施の形態１．
図１乃至図６は実施の形態１を示す図で、図１は天井吊り下げ形空気調和機２０の全体構成図、図２は下吹き時の吹出口５中央部の断面図、図３は水平吹き時の吹出口５中央部の断面図、図４は下吹き時の吹出口５両端部の断面図、図５は水平吹き時の吹出口５両端部の断面図、図６は吹出口５の正面図である。また、図８乃至図９は参考図で、図８は下吹き時の吹出口５両端部の断面図（上顎部上流側６ａの傾斜角度θｃと、吹出口５両端部の上顎部上流側６ａの傾斜角度θｓが同一の場合）、図９は水平吹き時の吹出口５中央部の断面図（上顎部上流側６ａの傾斜角度θｃが、吹出口５両端部の上顎部上流側６ａの傾斜角度θｓよりも大きい場合）である。
Embodiment 1 FIG.
1 to 6 are diagrams showing Embodiment 1, FIG. 1 is an overall configuration diagram of a ceiling-suspended air conditioner 20, FIG. 2 is a cross-sectional view of a central portion of an outlet 5 at the time of bottom blowing, and FIG. FIG. 4 is a cross-sectional view of both ends of the air outlet 5 at the time of bottom blowing, FIG. 5 is a cross-sectional view of both ends of the air outlet 5 at the time of horizontal blowing, and FIG. 5 is a front view of FIG. 8 to 9 are reference views, and FIG. 8 is a cross-sectional view of both ends of the outlet 5 at the time of bottom blowing (the inclination angle θc of the upper jaw upstream side 6a and the upper jaw upstream 6a of both ends of the outlet 5). 9 is a cross-sectional view of the central portion of the outlet 5 during horizontal blowing (the inclination angle θc of the upper jaw upstream side 6a is the inclination of the upper jaw upstream 6a at both ends of the outlet 5). The angle θs).
空気調和機の一例としての天井吊り下げ形空気調和機２０を例に以下の説明を行う。本発明は、天井吊り下げ形空気調和機２０の下吹き時に特に効果があるが、天井吊り下げ形空気調和機２０に限定されるものではない。 The following description will be given by taking a ceiling-suspended air conditioner 20 as an example of an air conditioner as an example. The present invention is particularly effective when the ceiling-suspended air conditioner 20 is blown down, but is not limited to the ceiling-suspended air conditioner 20.
図１により、天井吊り下げ形空気調和機２０の全体構成を説明する。図１は天井吊り下げ形空気調和機２０を側面から見た断面図である。天井吊り下げ形空気調和機２０の筐体１２（空気調和機本体と呼ぶ）は、略四角形の箱形状である。この箱形状の筐体１２が天井から吊り下げられる。筐体１２の後部下面に室内空気１１を吸い込む吸込口２が形成されている。通常、吸込口２には、塵埃等を除去するフィルタが設けられる。 The overall configuration of the ceiling-suspended air conditioner 20 will be described with reference to FIG. FIG. 1 is a sectional view of a ceiling-suspended air conditioner 20 as viewed from the side. A casing 12 (referred to as an air conditioner body) of the ceiling-suspended air conditioner 20 has a substantially rectangular box shape. This box-shaped housing 12 is suspended from the ceiling. A suction port 2 for sucking room air 11 is formed in the rear lower surface of the housing 12. Usually, the suction port 2 is provided with a filter for removing dust and the like.
筐体１２内の吸込口２の近傍には、送風ファン１が設けられている。送風ファン１は電動機により駆動される。ここでは、送風ファン１に、例えばシロッコファンを用いている。 A blower fan 1 is provided in the vicinity of the suction port 2 in the housing 12. The blower fan 1 is driven by an electric motor. Here, for example, a sirocco fan is used as the blower fan 1.
筐体１２内の風路３には、冷凍サイクルを構成する熱交換器４が送風ファン１の下流側に配置され、ここで室内空気１１と冷媒とが熱交換を行う。熱交換器４を通過した空気を二次空気９と呼ぶ。 A heat exchanger 4 constituting a refrigeration cycle is disposed on the downstream side of the blower fan 1 in the air passage 3 in the housing 12, where the indoor air 11 and the refrigerant exchange heat. The air that has passed through the heat exchanger 4 is referred to as secondary air 9.
吹出口５は、上部が上顎部６で、下部が下顎部７で構成される。そして、吹出し空気１０の上下方向の風向を制御する風向板８が、吹出口５に配置されている。風向板８は、円弧形状で、例えば、水平吹出し時には上（上顎部６側）に凸形状となる。 The blower outlet 5 includes an upper jaw portion 6 at an upper portion and a lower jaw portion 7 at a lower portion. And the wind direction board 8 which controls the wind direction of the up-down direction of the blowing air 10 is arrange | positioned at the blower outlet 5. FIG. The wind direction plate 8 has an arc shape, for example, a convex shape upward (upper jaw portion 6 side) at the time of horizontal blowing.
天井吊り下げ形空気調和機２０を前面から見ると、横長な吹出口５が左右方向に形成されている。吹出口５の両端を端部、その間を中央部とする。各端部は、左右方向の長さが２００ｍｍ以内の範囲とする。本実施の形態は、冷房運転時の風向板８の下吹き時に、風向板８の風向板表面８ｂに沿う吹出し空気１０の流れが風向板８の風向板先端部８ａまで到達するように、上顎部６の形状を吹出口５の中央部と両端部とで異なる構成にしたものである。 When the ceiling-suspended air conditioner 20 is viewed from the front, a horizontally long outlet 5 is formed in the left-right direction. Let both ends of the blower outlet 5 be an end part, and let the center be a center part. Each end has a length in the left-right direction within 200 mm. In the present embodiment, the upper jaw is arranged so that the flow of the blown air 10 along the wind direction plate surface 8b of the wind direction plate 8 reaches the wind direction plate tip 8a of the wind direction plate 8 when the wind direction plate 8 is blown downward during the cooling operation. The shape of the part 6 is configured to be different between the central part and both end parts of the air outlet 5.
図２は吹出し空気１０を冷房運転時に下吹きする場合の吹出口５中央部付近の断面図であるが、熱交換器４の上段部を通過した二次空気９は、上顎部６の上顎部上流側６ａに沿って流れ吹出口５に到達する。上顎部６は、断面形状が略Ｖ字形状であり、吹出し空気１０の上流側に上から下に傾斜する上顎部上流側６ａ、吹出し空気１０の下流側に下から上に傾斜する上顎部下流側６ｂを有する。風向板８は円弧形状（下吹き時は、筐体１２前面側に凸）で、下向きになっていて風向板表面８ｂが上顎部上流側６ａ付近に対して負圧になることから、上顎部上流側６ａに沿った吹出し空気１０の流れは、風向板表面８ｂの円弧形状に沿って、矢印Ａ、矢印Ｂで示すように前方下方向に吹出される。また、熱交換器４の中段部、下段部を通過した二次空気９は、風向板裏面８ｃに衝突し、円弧形状に沿って流れ、矢印Ｃ、矢印Ｄで示すように前方下方向に吹出し空気１０として吹出される。尚、図２に示すように、上顎部上流側６ａの水平線に対する角度をθｃとする。角度θｃは、例えば、約５５度である。 FIG. 2 is a cross-sectional view of the vicinity of the central portion of the air outlet 5 when the blown air 10 is blown down during the cooling operation. The secondary air 9 that has passed through the upper stage of the heat exchanger 4 is the upper jaw portion of the upper jaw portion 6. It reaches the flow outlet 5 along the upstream side 6a. The upper jaw part 6 has a substantially V-shaped cross section, and the upper jaw part upstream side 6 a that inclines downward from the upper side to the upstream side of the blowing air 10, and the upper jaw part downstream side that inclines from the lower side to the downstream side of the blowing air 10 It has a side 6b. Since the wind direction plate 8 has an arc shape (convex to the front side of the housing 12 at the time of downward blowing) and faces downward, the wind direction plate surface 8b has a negative pressure with respect to the vicinity of the upper jaw upstream side 6a. The flow of the blown air 10 along the upstream side 6a is blown forward and downward as indicated by arrows A and B along the arc shape of the wind direction plate surface 8b. Further, the secondary air 9 that has passed through the middle and lower stages of the heat exchanger 4 collides with the wind direction plate back surface 8c, flows along an arc shape, and blows out forward and downward as indicated by arrows C and D. Air 10 is blown out. As shown in FIG. 2, the angle of the upper jaw upstream side 6a with respect to the horizontal line is θc. The angle θc is about 55 degrees, for example.
吹出口５の左右方向両端部においては、壁の影響により吹出し空気１０の風速が吹出口５中央部よりも遅くなる。そのため、吹出口５の上顎部６の形状が、全体的に同一であると、図８に示すような課題が発生する。即ち、吹出口５の左右方向両端部においては、吹出し空気１０の風速が吹出口５中央部よりも遅くなり風向板表面８ｂの負圧が小さいため、図８に示すように、上顎部上流側６ａに沿った吹出し空気１０の流れが風向板表面８ｂに沿いにくく、風向板先端部８ａまで到達しない場合があり、風向板先端部８ａ付近では、冷房運転時に温度の高い室内空気１１を巻き込み、風向板表面８ｂの温度が、風向板裏面８ｃの温度より高くなり、風向板表面８ｂが結露しやすくなる。 At both ends in the left-right direction of the air outlet 5, the wind speed of the blown air 10 is slower than the center of the air outlet 5 due to the influence of the walls. Therefore, if the shape of the upper jaw portion 6 of the air outlet 5 is the same as the whole, a problem as shown in FIG. 8 occurs. That is, at both ends in the left and right direction of the air outlet 5, the wind speed of the blown air 10 is slower than the central part of the air outlet 5, and the negative pressure on the wind direction plate surface 8b is small. Therefore, as shown in FIG. The flow of the blown air 10 along 6a is difficult to follow along the wind direction plate surface 8b and may not reach the wind direction plate tip 8a. In the vicinity of the wind direction plate tip 8a, the indoor air 11 having a high temperature is involved in the cooling operation, The temperature of the wind direction plate surface 8b becomes higher than the temperature of the wind direction plate back surface 8c, and the wind direction plate surface 8b is likely to condense.
そこで、本実施の形態では、図４に示すように、吹出口５の左右方向両端部では、上顎部上流側６ａの水平線に対する角度θｓを、吹出口５中央部付近の上顎部上流側６ａの水平線に対する角度θｃよりも大きくしている。角度θｃは、例えば、約６５度である。 Therefore, in the present embodiment, as shown in FIG. 4, the angle θs with respect to the horizontal line of the upper jaw upstream side 6 a is set to the upper jaw upstream side 6 a near the center of the blower outlet 5 at both left and right ends of the blower outlet 5. The angle θc is greater than the horizontal line. The angle θc is about 65 degrees, for example.
これにより、上顎部上流側６ａ沿った吹出し空気１０の流れがより下向きに吹出し、風向板表面８ｂに沿いやすく、吹出し空気１０が風向板先端部８ａに到達するので室内空気１１の巻き込みがなくなり、冷房運転時の風向板先端部８ａでの結露を抑制できる。 As a result, the flow of the blown air 10 along the upper jaw upstream side 6a blows downward more easily along the wind direction plate surface 8b, and since the blown air 10 reaches the wind direction plate tip 8a, the entrainment of the indoor air 11 is eliminated. Condensation at the wind direction plate tip 8a during cooling operation can be suppressed.
図３は吹出口５中央部において吹出し空気１０を水平吹きする場合の流れを示す。風向板８は、略水平の状態で、円弧形状は上に凸になっている。熱交換器４の中段、下段を通過した二次空気９は、風向板８の風向板表面８ｂまたは風向板裏面８ｃに沿って、矢印Ｂ’、矢印Ｃ’、矢印Ｄ’で示すように前方水平方向に吹出し空気１０として吹出される。また、熱交換器４の上段を通過した二次空気９は、風向板８の風向板表面８ｂに沿って、矢印Ａ’で示すように前方水平方向に吹出し空気１０として吹出される。 FIG. 3 shows the flow when the blown air 10 is blown horizontally at the center of the blowout port 5. The wind direction plate 8 is in a substantially horizontal state, and the arc shape is convex upward. The secondary air 9 that has passed through the middle and lower stages of the heat exchanger 4 moves forward along the wind direction plate surface 8b or the wind direction plate back surface 8c of the wind direction plate 8 as indicated by arrows B ', C', and D '. It blows out as blowing air 10 in the horizontal direction. Further, the secondary air 9 that has passed through the upper stage of the heat exchanger 4 is blown out as blown air 10 in the front horizontal direction along the wind direction plate surface 8b of the wind direction plate 8 as indicated by an arrow A '.
吹出口５中央部において、上顎部上流側６ａの傾斜角度θｃを、吹出口５両端部の上顎部上流側６ａの傾斜角度θｓと同じように大きくすると、図９に示すように、上顎部上流側６ａに沿った吹出し空気１０の流れは（矢印Ａ’）、下向きのベクトルを持ち、且つ風速が大きいため、水平吹き時に風向板表面８ｂ付近の吹出し空気１０の流れ（矢印Ｂ’）と合流する際の気流の乱れが大きくなり、上顎部下流側６ｂで室内空気１１を巻き込み、冷房運転時、上顎部下流側６ｂが結露したり、圧損が大きくなるという課題があり、吹出口５中央部の上顎部上流側６ａの傾斜角度θｃを、吹出口５両端部の上顎部上流側６ａの傾斜角度θｓと同じように大きくするのは得策ではない。 When the inclination angle θc of the upper jaw upstream side 6a at the center of the outlet 5 is increased in the same manner as the inclination angle θs of the upper jaw upstream 6a at both ends of the outlet 5, as shown in FIG. The flow of the blown air 10 along the side 6a (arrow A ′) has a downward vector and has a high wind speed, so it merges with the flow of the blown air 10 near the wind direction plate surface 8b (arrow B ′) when blowing horizontally. The airflow is greatly disturbed, and the indoor air 11 is engulfed on the downstream side 6b of the upper jaw, and during cooling operation, there is a problem that the downstream side 6b of the upper jaw is dewed or pressure loss increases, It is not a good idea to increase the inclination angle θc of the upper jaw upstream side 6a in the same manner as the inclination angle θs of the upper jaw upstream side 6a at both ends of the outlet 5.
一方、吹出口５両端部では、図５に示すように、吹出口５両端部の上顎部上流側６ａの傾斜角度θｓが大きくても、風速が吹出口５中央部より遅いため、水平吹き時に上顎部上流側６ａに沿った吹出し空気１０の流れは（矢印Ａ’）と、風向板表面８ｂ付近の吹出し空気１０の流れ（矢印Ｂ’）が合流する際の気流の乱れは小さく、冷房運転時の上顎部下流側６ｂの結露や、圧損の増大という不具合は起こらない。 On the other hand, as shown in FIG. 5, at the both ends of the outlet 5, even if the inclination angle θs of the upper jaw upstream side 6 a at both ends of the outlet 5 is large, the wind speed is slower than the center of the outlet 5. The flow of the blown air 10 along the upper jaw upstream side 6a (arrow A ') and the flow of the blown air 10 near the wind direction plate surface 8b (arrow B') are small, and the turbulence of the airflow is small, and the cooling operation The problem of dew condensation on the upper jaw downstream side 6b and increased pressure loss does not occur.
以上のように、吹出口５の左右方向の長さが２００ｍｍ以内の範囲の、両端部の上顎部上流側６ａの傾斜角度θｓを、吹出口５の中央部の傾斜角度θｃより大きくすることにより、下吹き、水平吹き両方での結露耐力に優れ、且つ風路圧損の小さい吹出口５を実現できる。尚、上顎部６の左右方向両端部と中央部との境界は、滑らかに繋ぐのが好ましいが、必須ではない。滑らかに繋がなくてもよい。 As described above, by making the inclination angle θs of the upper jaw upstream side 6a at both ends within the range of the length in the left-right direction of the outlet 5 within 200 mm larger than the inclination angle θc of the central portion of the outlet 5 In addition, it is possible to realize the air outlet 5 which is excellent in the condensation resistance in both the bottom blowing and the horizontal blowing and has a small air path pressure loss. In addition, although it is preferable that the boundary of the left-right direction both ends and center part of the upper jaw part 6 is connected smoothly, it is not essential. There is no need to connect smoothly.
実施の形態２．
図７は実施の形態２を示す図で、下吹き時の吹出口５両端部の断面図である。
Embodiment 2. FIG.
FIG. 7 is a diagram showing the second embodiment, and is a cross-sectional view of both ends of the outlet 5 at the time of lower blowing.
実施の形態１では、吹出口５両端部の上顎部上流側６ａの傾斜角度θｓを、吹出口５中央部の傾斜角度θｃより大きくすることで、下吹き、水平吹き両方での結露耐力に優れ、且つ風路圧損の小さい吹出口５を実現したが、実施の形態２では、吹出口５両端部の上顎部上流側６ａを盛り上げて風向板８に近づけ、上流から下流に向け絞り形状とすることで、吹出口５両端部の下吹き時の風向板表面８ｂに沿う吹出し空気１０の流れ（矢印Ｂ）を風速を早くして、吹出し空気１０の風向板先端部８ａへの到達性を高めることにより、室内空気１１の巻き込みを防止し、下吹きでの結露耐力に優れ、且つ風路圧損の小さい吹出口５を実現できる。 In Embodiment 1, the inclination angle θs of the upper jaw upstream side 6a at both ends of the air outlet 5 is made larger than the inclination angle θc of the air outlet 5 central portion, so that the dew condensation resistance in both the bottom blowing and the horizontal blowing is excellent. In the second embodiment, the upper jaw 6 upstream side 6a at both ends of the blower outlet 5 is raised and brought closer to the wind direction plate 8 and is made a throttle shape from upstream to downstream. Thus, the flow speed of the blown air 10 along the wind direction plate surface 8b at the both ends of the blower outlet 5 (arrow B) is increased to increase the reachability of the blown air 10 to the wind direction plate tip 8a. Accordingly, it is possible to prevent the room air 11 from being involved, to realize the air outlet 5 which has excellent dew condensation resistance in the bottom blowing and a small air path pressure loss.
水平吹出しの場合は、図示はしないが、吹出口５両端部では、上顎部上流側６ａを風向板８に近づけ上流から下流に向け絞り形状としても、端部の壁の影響で元々風速は遅いので、上顎部上流側６ａに沿った吹出し空気１０の流れと、風向板表面８ｂ付近の吹出し空気１０の流れが合流する際の気流の乱れは小さく、冷房運転時の上顎部下流側６ｂの結露や、圧損の増大という不具合は起こらない。 In the case of horizontal blowing, although not shown in the figure, at both ends of the blower outlet 5, even if the upper jaw upstream side 6a is brought close to the wind direction plate 8 and is drawn from upstream to downstream, the wind speed is originally slow due to the influence of the wall of the edge. Therefore, the turbulence of the airflow when the flow of the blown air 10 along the upper jaw upstream side 6a and the flow of the blown air 10 near the wind direction plate surface 8b merge is small, and the dew condensation on the downstream 6b of the upper jaw during the cooling operation. In addition, the problem of increased pressure loss does not occur.
以上のように、吹出口５両端部の上顎部上流側６ａを盛り上げて風向板８に近づけ、上流から下流に向け絞り形状とすることで、吹出口５両端部の下吹き時の風向板表面８ｂに沿う吹出し空気１０の流れを風速を早くして、吹出し空気１０の風向板先端部８ａへの到達性を高めることにより、室内空気１１の巻き込みを防止し、下吹き、水平吹きでの結露耐力に優れ、且つ風路圧損の小さい吹出口５を実現できる。 As described above, the upper jaw upstream side 6a at both ends of the outlet 5 is raised and brought close to the wind direction plate 8, and the throttle shape is formed from upstream to downstream, so that the surface of the wind direction plate at the time of downward blowing at both ends of the outlet 5 The flow of the blown air 10 along 8b is accelerated to increase the reachability of the blown air 10 to the wind direction plate tip 8a, thereby preventing the indoor air 11 from being caught, and the dew condensation resistance in the bottom blow and horizontal blow. It is possible to realize the blowout port 5 which is excellent in air flow pressure loss.
実施の形態３．
実施の形態１と実施の形態２とを組合わせて、吹出口５両端部の上顎部上流側６ａの傾斜角度θｓを、吹出口５中央部の傾斜角度θｃより大きくし、且つ吹出口５両端部の上顎部上流側６ａを盛り上げて風向板８に近づけ、上流から下流に向け絞り形状とすると、さらに効果がある。即ち、下吹き時の吹出し空気１０の風向板先端部８ａへの到達性を高め、風向板先端部８ａの結露耐力をより向上できる。
Embodiment 3 FIG.
The first embodiment and the second embodiment are combined to make the inclination angle θs of the upper jaw upstream side 6a at both ends of the outlet 5 larger than the inclination angle θc of the central portion of the outlet 5 and both ends of the outlet 5 It is more effective if the upper jaw portion upstream side 6a of the portion is raised and brought closer to the wind direction plate 8 and is made a throttle shape from upstream to downstream. That is, it is possible to improve the reachability of the blown air 10 to the wind direction plate front end portion 8a at the time of bottom blowing, and to further improve the condensation resistance of the wind direction plate front end portion 8a.
１ 送風ファン、２ 吸込口、３ 風路、４ 熱交換器、５ 吹出口、６ 上顎部、６ａ 上顎部上流側、６ｂ 上顎部下流側、７ 下顎部、８ 風向板、８ａ 風向板先端部、８ｂ 風向板表面、８ｃ 風向板裏面、９ 二次空気、１０ 吹出し空気、１１ 室内空気、１２ 筐体、２０ 天井吊り下げ形空気調和機。 DESCRIPTION OF SYMBOLS 1 Blower fan, 2 suction port, 3 air path, 4 heat exchanger, 5 blower outlet, 6 upper jaw part, 6a upper jaw upstream side, 6b upper jaw downstream side, 7 lower jaw part, 8 wind direction board, 8a wind direction board front-end | tip part 8b Wind direction plate surface, 8c Wind direction plate back surface, 9 secondary air, 10 blowing air, 11 indoor air, 12 housing, 20 ceiling-suspended air conditioner.
Claims (4)
この空気調和機本体の前面に左右方向に長く形成され、吹出し空気を吹出す吹出口と、
この吹出口の上部を形成し、前記吹出し空気の上流側に上から下に傾斜する上顎部上流側と、前記吹出し空気の下流側に下から上に傾斜する上顎部下流側とを有する上顎部と、
前記吹出口の下部を形成する下顎部と、
前記上顎部及び前記下顎部の間に設けられ、かつ、前記吹出口の左右方向端部の間に設けられ、前記上顎部及び前記下顎部と共に前記吹出し空気の上下方向の風向を制御する上下方向の断面が円弧形状の風向板であって、凸面となる風向板表面と凹面となる風向板裏面とを有する風向板と
を備え、
冷房運転時に前記風向板表面を前記空気調和機本体の前面側にして前記風向板を下吹きにした場合に、前記吹出口の左右方向両端部における前記上顎部上流側に沿って流れる吹出し空気が前記風向板表面の凸面に沿って下流の風向板先端まで到達するように、前記吹出口の左右方向両端部における前記上顎部上流側の水平線に対する角度θｓを、前記吹出口の中央部付近における前記上顎部上流側の水平線に対する角度θｃより所定角度大きくすることを特徴とする空気調和機。 An air conditioner body,
A blower outlet that is formed in the left and right direction on the front surface of the main body of the air conditioner and blows out blown air.
An upper jaw part that forms the upper part of the outlet and has an upper jaw upstream side that is inclined from above to below on the upstream side of the blown air, and an upper jaw downstream side that is inclined downward from above to the downstream side of the blown air When,
A lower jaw part forming the lower part of the outlet,
Up and down direction provided between the upper jaw part and the lower jaw part, and provided between right and left end parts of the outlet, and controls the vertical direction of the blown air together with the upper jaw part and the lower jaw part A cross-sectional arc direction wind direction plate , comprising a wind direction plate surface having a convex surface and a wind direction plate having a concave surface .
When the wind direction plate surface is set to the front side of the air conditioner main body and the wind direction plate is blown downward during cooling operation, the blown air flowing along the upper jaw portion upstream side at both ends in the left-right direction of the air outlet is The angle θs with respect to the horizontal line on the upstream side of the upper jaw at the left and right ends of the air outlet is adjusted so as to reach the tip of the wind direction plate downstream along the convex surface of the air direction plate. An air conditioner having a predetermined angle larger than an angle θc with respect to a horizontal line upstream of the upper jaw.
The air conditioner according to any one of claims 1 to 3, wherein a boundary between the both ends in the left and right direction of the upper jaw and the center is smoothly connected.
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| JP5676855B2 (en) * | 2009-04-17 | 2015-02-25 | ダイキン工業株式会社 | Air conditioner |
| JP5591336B2 (en) * | 2010-08-04 | 2014-09-17 | 三菱電機株式会社 | Air conditioner indoor unit and air conditioner |
| WO2020194556A1 (en) * | 2019-03-26 | 2020-10-01 | 東芝キヤリア株式会社 | Indoor unit of air conditioner |
| CN112178772B (en) * | 2019-07-04 | 2021-07-23 | 重庆海尔空调器有限公司 | Wall-mounted air conditioner indoor unit |
| CN112944459A (en) * | 2021-02-24 | 2021-06-11 | 青岛海尔（胶州）空调器有限公司 | Air conditioner |
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| JPS61101314A (en) * | 1984-10-19 | 1986-05-20 | Iseki & Co Ltd | Selection device for fruits etc. |
| JPH0670519B2 (en) * | 1984-10-22 | 1994-09-07 | 松下冷機株式会社 | Wind deflector for air conditioner |
| JP3326927B2 (en) * | 1993-12-07 | 2002-09-24 | 松下電器産業株式会社 | Indoor unit of air conditioner |
| JP3957927B2 (en) * | 1999-08-30 | 2007-08-15 | 三菱重工業株式会社 | Embedded ceiling air conditioner |
| JP3438684B2 (en) * | 1999-11-05 | 2003-08-18 | ダイキン工業株式会社 | Ceiling embedded air conditioner |
| JP3624814B2 (en) * | 2000-09-06 | 2005-03-02 | ダイキン工業株式会社 | Air conditioner decorative panel, air outlet unit, and air conditioner |
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