JPS6233251A - Air flow direction changing device of air conditioner - Google Patents

Abstract

PURPOSE:To prevent dew condensation on the lower surface of a vane during the space cooling and ensure a sufficient downblow air flow angle during the space heating by assembling an upper and lower air flow direction changing vane having an upper surface a part of which is curved into an arcuate shape and a lower surface formed into a curved surface of a gentle corrugated line, rotatably into both right and left side walls of a discharge grill. CONSTITUTION:An upper and lower air flow direction changing vane 11 is provided with an upstream side curved surface 11a having an upper surface cured into an arcu ate shape in a state where the center of the curvature is located on the lower surface side, and a lower surface curved so that it gradually widens in the direction of the air flow, and a leeward side curved surface 11b connected to the upstream side curved surface 11a and curved so that it narrows gradually in the direction of the air flow. The center of curvature of the upstream curved surface 11a is set on the upper surface side, and the center of curvature of the leeward curved surface 11b is set on the lower surface side. The slant line portion of non-air-flow on the lower surface in air flow sent from a blower is greatly reduced by the upstream curved surface 11a and the leeward curved surface 11b. Further, since the shape of the leeward curved surface 11b is curved to form a gentle arcuate shape, the downward discharge deflection angle is remarkably improved.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、空気調和機の風向変更装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a wind direction changing device for an air conditioner.

従来の技術 従来この種の空気調和機は、第３図に示されるような構
成になっていた。2. Description of the Related Art Conventionally, this type of air conditioner has been constructed as shown in FIG.

同図において、１１／ｉ室内ユニツトの台枠本体で、吸
込口２＆を備えた前面グリル２と、吹出口３ａを備えた
吹出グリル３が取り付けられている。４は前記台枠本体
１と前面グリル２０間に形成される通風路で、前記吸込
口２ａと前記吹出口３ａに連通し、その内部には冷凍サ
イクルを構成する熱交換器５及び送風機６が配設されて
いる。８は前記吹出グリル３の内部に組み込まれた複数
枚の左右風向変更羽根、７は前記吹出グリル３の左右両
側壁に両端が回動可能に組み込まれた上下風向変更羽根
で、第４図あるいは第５図に示すように弓状あるいは平
板状のものが使用されていた。In the figure, a front grille 2 having an inlet 2& and an outlet grill 3 having an outlet 3a are attached to the underframe body of the 11/i indoor unit. Reference numeral 4 denotes a ventilation passage formed between the underframe main body 1 and the front grille 20, which communicates with the suction port 2a and the air outlet 3a, and inside thereof a heat exchanger 5 and a blower 6 constituting a refrigeration cycle are installed. It is arranged. Reference numeral 8 denotes a plurality of left and right wind direction changing blades built into the interior of the outlet grille 3, and 7 is a vertical wind direction changing blade built into the left and right side walls of the outlet grille 3 so that both ends thereof can be rotated, as shown in FIG. As shown in Figure 5, arcuate or flat plates were used.

発明が解決しようとする問題点 しかし、弓状の上下風向変更羽根７は、水平吹出時、第
６図に示すように下面において風の通らない無風の部分
７ａ（斜線部分）が大きくできるため、冷房運転時、矢
印Ａで示すように下方から熱交換されていない空気を巻
き込み、その結果温度差によって上下風向変更羽根７に
結露７ｂが発生１−１その結露が滴下する現象を引き起
こしていた。Problems to be Solved by the Invention However, the bow-shaped vertical wind direction changing blade 7 has a large windless area 7a (hatched area) on the lower surface where the air does not pass, as shown in FIG. 6, during horizontal blowing. During cooling operation, air that has not been heat exchanged is drawn in from below as shown by arrow A, and as a result, condensation 7b is generated on the upper and lower wind direction changing blades 7 due to the temperature difference 1-1, causing the condensation to drip.

また、平板状の上下風向変更羽根７についても同様の現
象を引き起こしていた。Further, the same phenomenon occurred with respect to the flat plate-shaped vertical wind direction changing blade 7.

さらに、弓状、平板状の上下風向変更羽根７は、暖房運
転時の下吹出偏向角度が十分に達成できないという問題
があった。Further, the bow-shaped or flat-shaped vertical wind direction changing blade 7 has a problem in that a sufficient downward blow deflection angle cannot be achieved during heating operation.

そこで木発明は、上下風向変更羽根の下面において、風
の通らない無風の部分を大幅に減らし、冷房時の上下風
向変更羽根下面の結露を防止し、さらに、暖房時の下吹
風向角度が十分得られるようにするものである。Therefore, the invention of the tree greatly reduces the airless area on the lower surface of the vertical wind direction changing blade, prevents dew condensation on the lower surface of the vertical wind direction changing blade during cooling, and further increases the downward blow direction angle during heating. It is intended to be obtained.

問題点を解決するだめの手段 そして上記問題点を解決するための手段は、上面の一部
を弓状にわん曲し、下面をゆるやかな波形線の曲面にし
た上下風向変更羽根を回転可能なように吹出グリルの左
右両側壁に組み込んだものである。A means to solve the problem and a means to solve the above problem is to use a rotatable vertical wind direction changing blade whose upper surface is partially curved into an arch shape and whose lower surface is curved with a gentle wavy line. It is built into the left and right walls of the air outlet grill.

作　　用 この技術的手段による作用は次のようになる。For production The effect of this technical means is as follows.

すなわち、上下風向変更羽根の水平時、下面に風を付着
させることにより、風の通らない無風の部分を大幅に減
らすことができ、また、下吹時には下吹出偏向角度が十
分に達成できるのである。In other words, by attaching the wind to the lower surface of the vertical wind direction change blade when it is horizontal, it is possible to significantly reduce the no-wind area where the wind does not pass, and also to achieve a sufficient downward blow deflection angle when blowing downward. .

実施例 以下、本発明の一実施例につき図面に基づいて説明する
。なお、空気調和機の構成は従来例で示した構成でよく
、また本発明の要旨と直接関係がないため、説明を省略
する。EXAMPLE Hereinafter, one example of the present invention will be described based on the drawings. Note that the configuration of the air conditioner may be the configuration shown in the conventional example, and since it is not directly related to the gist of the present invention, a description thereof will be omitted.

第１図に示すように、上下風向変更羽根１１は、上面が
、曲率の中心を下面側に有する状態で弓状にわん曲し、
また下面には、風の流れに対して徐々に広がるようにわ
ん曲した風上側曲面部（１１ａ）と、この風上側曲面部
（ｌｌａ）と連続し、かつ風の流れに対して徐々にせば
まるようにわん曲した風下側曲面部（１１ｂ）を設けて
いる。そして風上側曲面部の曲率の中心は上面側にあり
、風下側曲面部（ｔｌｂ）の中心は下面側に設定されて
いる。As shown in FIG. 1, the vertical wind direction changing blade 11 has an upper surface curved in an arch shape with the center of curvature on the lower surface side,
In addition, on the lower surface, there is a windward side curved surface part (11a) that is curved so as to gradually expand with respect to the wind flow, and a windward side curved surface part (lla) that is continuous with this windward side curved surface part (lla) and is curved so as to gradually expand with respect to the wind flow. A leeward side curved surface portion (11b) is provided which is curved so as to be round. The center of curvature of the windward curved surface portion is set on the upper surface side, and the center of the leeward curved surface portion (tlb) is set on the lower surface side.

この上下風向変更羽根１１ば、従来と同様吹出グリルの
左右両端壁に回転可能に組み込まれている。The vertical wind direction changing blades 11 are rotatably incorporated in the left and right end walls of the outlet grille, as in the conventional case.

そして、本発明の効果を具体的に示すものとして、代表
的な風の流れを第２図の矢印で示す。As a concrete illustration of the effects of the present invention, typical wind flows are shown by arrows in FIG.

送風機（風上側）から送られてきた風は、上下風向変更
羽根１１の下面に付着しやすいが、風上側曲面部１１ａ
１風下側曲面部１１ｂにより下面において無風の部分（
斜線部分）が大幅に減少する。The wind sent from the blower (windward side) tends to adhere to the lower surface of the vertical wind direction changing blade 11, but
1. Windless area (
(shaded area) is significantly reduced.

また、風下側曲面部１１ｂの形状をゆるやかな弓状にな
るようわん画形成しているため、下吹出偏向角度も、飛
躍的て改善される。Further, since the shape of the leeward side curved surface portion 11b is formed into a gentle arch shape, the downward blow deflection angle is also dramatically improved.

なお、上下風向変更羽根１１の上面は、平面状であって
もよい。Note that the upper surface of the vertical wind direction changing blade 11 may be flat.

発明の効果 以上のように、本発明の上下風向変更羽根を用いれば、
冷房運転の水平あるいは上方吹出時に、上下風向変更羽
根の下面への風の巻き込みによる結露が防止でき、結露
の滴下による不都合が改善でき、さらに暖房運転の下吹
出時に下吹出偏向角度も十分得られ、使用時のフィーリ
ングが飛躍的に向上する効果が得られる。As described above, if the vertical wind direction changing blade of the present invention is used,
During horizontal or upward blowing during cooling operation, it is possible to prevent condensation due to wind being caught on the bottom surface of the vertical wind direction changing blade, and to improve the inconvenience caused by dripping condensation.Furthermore, when blowing downward during heating operation, a sufficient downward blowing deflection angle can be obtained. , the effect of dramatically improving the feeling during use can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａ−ｂは木発明の一実施例を示す上下風向変更羽
根の側面図と平面図、第２図は同上下風向変更羽根によ
る風の流れを示す説明図、第３図は従来の空気調和機の
要部縦断面図、第４図、第５図はそれぞれ従来の異なる
上下風向変更羽根の側面図、第６図、第７図は同各上下
風向変更羽根による風の流れを示す説明図である。 １・・・・・・台枠本体、２・・・・・・前面グリル、
３・・・・・・吹出グリル、４・・・・・・通風回路、
５・・・・・・熱交換器、６・・・・・・送風機、１１
・・・・・・上下風向変更羽根、ｌｌａ・・・・・・風
上側曲面部、１１ｂ・・・・・・風下側曲面部。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第　
２　図 第４図 第５図 口１１１天ヲ１０ 第６図Figures 1 a-b are a side view and a plan view of a vertical wind direction changing blade showing an embodiment of the wooden invention, Figure 2 is an explanatory diagram showing the flow of wind by the same vertical wind direction changing blade, and Figure 3 is a conventional A vertical cross-sectional view of the main part of an air conditioner, Figures 4 and 5 are side views of different conventional vertical wind direction changing blades, and Figures 6 and 7 show the wind flow by each of the same vertical wind direction changing blades. It is an explanatory diagram. 1...Underframe body, 2...Front grill,
3...Blowout grill, 4...Ventilation circuit,
5...Heat exchanger, 6...Blower, 11
. . . Vertical wind direction changing blade, lla . . . Windward side curved surface portion, 11b . . . Leeward side curved surface portion. Name of agent: Patent attorney Toshio Nakao and 1 other person
2 Figure 4 Figure 5 Mouth 111 Heaven 10 Figure 6

Claims (1)

【特許請求の範囲】[Claims] 台枠本体と、前記台枠本体内に設置された送風機と、前
記台枠本体に取り付けられた吹出グリルを備え、前記吹
出グリル内に、上下風向変更羽根を回転可能に配設し、
さらに前記上下風向変更羽根の下面に、風の流れに対し
て徐々に広がるようにわん曲した風上側曲面部と、この
風上側曲面部と連続し、かつ風の流れに対して徐々にせ
ばまるようにわん曲した風下側曲面部を設け、前記風上
側曲面部の曲率の中心を上下風向変更羽根の上面側に、
また風下側曲面部の曲率の中心を上下風向変更羽根の下
面側にそれぞれ設けた空気調和機の風向変更装置。comprising an underframe main body, a blower installed in the underframe main body, and a blowout grill attached to the underframe main body, and a vertical air direction changing blade is rotatably disposed within the blowoff grill;
Further, on the lower surface of the vertical wind direction changing blade, there is a windward side curved surface part that is curved so as to gradually widen with respect to the wind flow, and a windward side curved surface part that is continuous with this windward side curved surface part and gradually narrows with respect to the wind flow. A leeward curved surface portion curved as shown in FIG.
In addition, the air conditioner's wind direction changing device has the center of curvature of the leeward curved surface portion located on the lower surface side of the upper and lower wind direction changing blades.