JPH089557Y2 - Air conditioner blowout grill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a blowout grill of an air conditioner, and in particular, blows out heat-exchanged air in a vertically deflectable manner and in a horizontal direction. The present invention relates to a blowout grill of an air conditioner capable of improving blowout characteristics.

(Prior Art) Conventionally, the air outlet of a wall-mounted or window-type air conditioner generally has a configuration as shown in FIGS. 5 and 6.

As shown in the figure, the air outlet 1 is formed in the front panel 2 of the air conditioner 1 by being opened in the horizontal direction. The air outlet 3 is provided with a vertical deflection vane plate 4 for deflecting the direction of the blown air to the upward, downward or frontal direction as necessary. As shown in FIG. 6, the vertical deflection vane plate 4 is provided with vane pivot shafts 5 at its left and right ends, and is rotatably or pivotally attached to a side wall 7 defining the outlet 3. Further, a lateral deflection vane plate 8 for deflecting the blown air in the lateral direction as required is provided inside the vertical deflection vane plate 4, that is, on the upstream side of the blown indoor air.

Since the side wall 7 that defines and forms the outlet 3 expands the left-right airflow direction area of the blown-out air, as shown in FIG. 6, a curved surface 9 that is expanded from the inside toward the outside in the arrow direction is formed. The distance between the innermost part and the outermost part is extended by δ.

Therefore, when the air blown out from the air outlet 3 is deflected in the vertical direction, the vertical deflection blade plate 4 is rotated about the blade rotation shaft 5 to deflect the air outlet direction. Further, when the blown air is deflected in the left-right direction, the left-right deflection vane plate 8 is changed in the left-right direction to deflect the blowout direction. In particular, the blown air blown out in the left-right direction is blown out along the curved surface 9 formed on the side wall 7 partitioning and forming both sides of the blow-out port 3 by the Coanda function, so that a wide wind direction area in the left-right direction is obtained. It is blowing toward.

(Problems to be Solved by the Invention) However, in the configuration of the air outlet 3 of the conventional air conditioner 1 described above, the side wall 7 partitioning and forming the side portion of the air outlet 3 has a lateral wind direction region. Since the curved surface 9 that is expanded from the inner side to the outer side is formed in order to widen the area, the portion having a distance δ from the inner side to the outer side is a space in appearance. Therefore, the entire front panel 2 of the air conditioner 1 has a problem of impairing its aesthetic appearance.

In addition, when the air conditioner 1 is in operation, if the amount of blown air is switched so as to be decreased, the speed of the air blown along the curved surface 9 of the side wall 7 also decreases. For this reason, when the blown air is cold air, the outside air having a high humidity is entrained and flows along the curved surface 9, which may cause dew condensation. On the other hand, when the blown air is warm air, the velocity of the blown air is slow, so that the warm air may stay on the curved surface 9 and the front panel 2 made of a synthetic resin material may be thermally deformed. there were.

The present invention has been made to solve these problems in the prior art, and its purpose is to improve the appearance of the front panel of the air conditioner and to improve the left-right air blowing characteristics of the air conditioner. It provides an outlet grill.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention is provided at an air outlet of an air conditioner so as to be positioned along the horizontal direction thereof, and after heat exchange blown out from the air outlet. In the blowout grill for deflecting the indoor air in the vertical direction, a vertical deflection vane plate is supported by the blowout port so as to be vertically rotatable at predetermined intervals along the horizontal direction and rotatably in the vertical direction. In addition to providing the side plates that connect the vertical deflection vane plates to each other between both ends of the vertical deflection vane plates, the inner side surfaces of the side plates facing each other are formed into curved surfaces that are arcuately raised along the blowing direction, and the sides of the opposing outlets are formed. The outer surfaces of the part wall and the side plate are formed as flat surfaces so that the gap between them is small and uniform.

(Operation) With the above configuration, at least the vertical deflection vane plate is provided in the vertical direction by providing the vertical deflection vane plates at the upper and lower sides at a predetermined interval, and by providing the side plates connecting the both ends thereof. It can be rotated in parallel to deflect the blowout in the vertical direction, and the inner side surfaces of the side plates facing each other are formed into an arc-shaped curved surface along the blowout direction. Without this, it is possible to increase the blowing deflection angle in the left-right direction.

(Embodiment) A preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 and 2 show an outlet grill 14 of the present invention which is attached to the outlet 13 of the air conditioner 1.

As shown in FIG. 1, a front panel 12 of the air conditioner 1 is provided with a rectangular outlet 13 which is opened in the horizontal direction. In the illustrated example, only the right side portion of the outlet 13 is shown, but the left side portion is configured to be substantially the right side portion. The outlet 13 is defined by the left and right side walls 19 and the upper and lower walls 23 as a rectangular opening, and the left and right side walls 19 are formed flat. The outlet grille 14 of the present invention is attached to the outlet 13, and the outlet grille 14 of the present invention is mainly provided in the outlet 13 at predetermined intervals in the vertical direction along the longitudinal direction, that is, the horizontal direction. It is composed of two vertical deflection blade plates 15a, 15b provided in the vertical deflection blade plates 15a, 15b, and a side plate 16 interposed between both end portions of the vertical deflection blade plates 15a, 15b and connecting them.

Further, as shown in FIG. 2, the side plate 16 is provided with a grill rotary shaft 18 that is pivotally supported on a side wall 19 that defines and defines the outlet 13, and is connected to the side plate 16. The vertical deflection vane plates 15a and 15b are supported so as to integrally rotate in the vertical direction. On the upstream side of the vertical deflection blades 15a and 15b in the blowing direction, a horizontal deflection blade 8 similar to the conventional example is provided. Particularly, in the present invention, the inner side surface portions 17 of the side plates 16 provided at both ends of the vertical deflection vane plates 15a and 15b facing each other are formed on the curved surface 20 which is arcuately raised along the air blowing direction. The blowing air is configured to expand the blowing deflection angle in the left-right direction by the Coanda effect. That is, the curved surface 20 of the inner side surface portion 17
Is set so that the blowing air expands the deflection angle in the left-right direction by the Coanda effect.

The side wall 19 that defines the left and right side portions of the outlet 13 is a flat or flat surface, and the outside of the side plate 16 of the outlet grill 14 is also a flat surface. As a result, only a small and uniform distance is formed between the left and right ends of the outlet grill 14 and the outlet side wall 19 of the outlet 13, and there is no space that spoils the appearance.

Therefore, when the heat-exchanged air in the air conditioner 1 is blown out to the outside, the blowing direction can be deviated vertically or horizontally as follows. That is, when the blown air is deflected in the vertical direction, it can be changed in any direction by rotating the blowout grill 14 in the vertical direction about the grill rotation shaft 18. The left-right deflection of the blown air is performed by rotating the left-right deflection blade plate 8 described above.

In the present invention, particularly, the air blown out from the blowout grill 14 in the left-right direction can further increase the deflection angle by the Coanda function of the curved surface 20 formed on the inner side surface portion 17 of the side plate 16. That is, the wind whose direction is changed by the vertical deflection vanes 15a, 15b can be guided along the maximum inclined surface by the inner side surface portion 17 that is integrally rotated, and the right and left deflection is surely performed. The corner can be enlarged. Further, since the gap between the side wall 19 and the side plate 16 of the air outlet 13 which faces each other is made a slight and uniform distance, the tip end 21 of the curved surface 20 becomes a leading edge, and thus the blown air is blown out by this tip end portion. twenty one
Even if the air flow rate is reduced while the air conditioner 1 is operating,
The problem of dew condensation on the inner side surface portion 17 of the side plate 16 does not occur.

FIG. 3 shows a modified embodiment, in which a concave negative pressure generating step portion 22 for further generating negative pressure is formed on the curved surface 20 formed on the side plate inner side surface portion 17 as shown in the figure. is there. By providing the negative pressure generating step portion 22 in this way,
Further, the deflection characteristic can be improved.

In the above embodiment, the vertical deflection vane plate is composed of two upper and lower plates. However, the present invention is not limited to this, and the same effect can be obtained even when they are stacked in a plurality of stages.

Now, comparing the lateral deflection characteristics and the wind velocity distribution of the present invention with those of the conventional structure, it is as shown in FIG. In FIG. 4, the blowout deflection angle of the left-right deflection vane plate 8 at the blowout port 13 is set to the right end, and blown air is deflected in the arrow direction and blown out. In the figure, a shows the deflection characteristic of the conventional blowing structure, and b shows the deflection characteristic of the blowing grill 14 of the present invention. Therefore, although the conventional deflection characteristic a has the effect of having the deflection angle of α angle, according to the present invention, the angle of the wind direction variable region of β angle can be improved. Also, according to the wind speed distribution shown in FIG. 4, the wind speed distribution by the blowing grill 14 of the present invention shows a high wind speed value in a wider range than that by the conventional structure, and the effect of the present invention is excellent. It indicates that

[Effects of the Invention] Since the present invention is as described above, it has the following excellent effects.

While not impairing the aesthetics of the front panel of the air conditioner, it is possible to reliably deflect the wind whose blowing direction has been changed by the vertical deflection blades to the left and right, eliminating the risk of condensation or thermal deformation, Improvement of blowing characteristics is achieved.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment according to the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, FIG. 3 is a view showing another embodiment, and FIG. FIG. 5 is a front view of the conventional example and FIG. 6 is a sectional view taken along line VI-VI of FIG. In the figure, 1 is an air conditioner, 13 is an outlet, 14 is an outlet grill,
15 is a vertical deflection vane plate, 16 is a side plate, 17 is an inner side surface part, 20
Is a curved surface.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-58-39808 (JP, A) real-open Sho-59-148544 (JP, U) real-open Sho-56-157536 (JP, U) real-open Sho-57- 104222 (JP, U)

Claims (2)

[Scope of utility model registration request] 1. A blowout grill, which is provided at an air outlet of an air conditioner along the horizontal direction thereof and vertically deflects heat-exchanged indoor air blown out from the air outlet. The outlet is provided with vertical deflection blade plates vertically supported at predetermined intervals along the horizontal direction and rotatably in the vertical direction, and these are provided between both ends of the vertical deflection blade plates. Connecting side plates are provided, and the inner side surface portions of the side plates facing each other are formed into curved surfaces that are bulged in an arc shape along the blowing direction, and the side wall of the opposing outlet and the outer surface of the side plate are formed into a flat surface, and between them. The air blower grill of the air conditioner is characterized in that the gap between the two is small and uniform. 2. A blow-out grill for an air conditioner according to claim 1, wherein said side plate has a negative pressure generating step portion on its inner side surface portion.