JP3144237B2 - Vertical blade structure of indoor unit for air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical blade structure of an indoor unit for an air conditioner.

[0002]

2. Description of the Related Art In general, vertical blades for changing and adjusting the direction of air blown out are provided at an air outlet of an indoor unit for an air conditioner.

[0003] Conventionally, the vertical blades are, for example, 5-9
As disclosed in Japanese Patent No. 0247, a disc-shaped water receiving portion for collecting dew condensation water generated at the blade portion is provided below the blade portion, and a main body side casing is provided through a shaft portion below the water receiving portion. Is mounted on the vertical blade mounting plate above the drain pan fixed to the pan so as to be horizontally rotatable.

[0004]

However, in the structure of the conventional vertical blade described above, since the blade itself does not have a function of collecting and guiding the dew condensation water, the condensed water generated in the blade is received in a lower water receiving portion. It has the drawback that it cannot be effectively collected in a part.

[0005] For this reason, there is a problem that the dew water on the surface of the blade portion is blown into the room as it is, causing a water splash phenomenon.

Further, the dew water collected to a certain extent in the above-mentioned water receiving portion is merely retained on the concave groove surface of the water receiving portion and naturally dried. The stagnant water is blown into the room by the wind around the outlet, and there is also a problem that a similar water splash phenomenon occurs.

[0007]

SUMMARY OF THE INVENTION The present invention has been made for the purpose of solving the above problems, and has the following structure.

First, the structure of the vertical blade of the indoor unit for an air conditioner according to the first invention of the present application is, for example, as shown in FIGS. 1 to 9, a blade 7A and a lower portion of the blade 7A. A disc-shaped water receiving portion 7B provided with a concave groove surface 80 for receiving dew water flowing down from the blade portion 7A, and a shaft portion fitting hole 6 at a lower portion of the water receiving portion 7B of the vertical blade mounting plate 2; And a shaft 7C rotatably fitted to the air conditioner. The shaft 7C is positioned above the drain pan 1 of the air outlet and is supported so as to be rotatable horizontally so as to adjust the direction of air blowing into the room. The first knurled surface portion 7 which is a vertical blade of the indoor unit, and which is inclined downward from the upper side to the lower side from the upstream side to the downstream side of the air blowing air on the air blowing upstream portion 71 on the surface of the blade portion 7A.
1a, and a second knurled surface portion 72a is formed on the surface of the blade portion 7A on the downstream side of the air-blowing air 72, the second knurling surface portion 72a being inclined upward and downward from the upstream side to the downstream side of the air-blowing wind. At the boundary between the first knurled surface 71a and the second knurled surface 72a, a first dew condensation water guide groove 73 extending from the upper side to the lower water receiving portion 7B is formed. A second dew-water guide groove 74 is formed below the knurled surface portion 71a and is inclined downward from the upstream side to the downstream side. A third dew-water guide groove 75 is formed, which rises and inclines from the upstream side to the downstream side.

The vertical blades of the indoor unit for an air conditioner according to the second invention of the present application are, for example, as shown in FIGS. 1 to 9, a blade portion 7A and a blade portion 7A below the blade portion 7A. A disc-shaped water receiving portion 7B provided with a concave groove surface 80 for receiving dew condensation water flowing down, and a lower portion of the water receiving portion 7B, which is rotated to the shaft fitting hole 6 of the vertical blade mounting plate 2. The air conditioner indoor unit comprises a shaft portion 7C which is fitted so as to be rotatable, is positioned above the drain pan 1 at the air outlet and is pivotally supported so as to be able to rotate horizontally, and changes and adjusts the direction of air blowing into the room. Vertical blades,
Notched grooves 81, 81 are formed in the water receiving portion 7B to allow the dew water retained in the concave groove surface 80 to flow into the concave groove portion 96 of the lower drain pan 1 through the shaft fitting hole 6. .

[0010]

According to the first and second aspects of the present invention, the following effects are exhibited in correspondence with the above-mentioned respective structures.

That is, in the first aspect of the invention of the vertical blade structure of the air conditioner indoor unit according to the first aspect of the present invention, as described above, the upstream side portion 71 of the air blowing air on both sides of the blade portion 7A is upstream of the air blowing air. A first knurled surface portion 71a that is inclined from the upper portion to the lower portion from the side to the downstream side, and the downstream portion 72 of the air blown wind on the surface of the blade portion 7A has a lower portion from the upstream side to the downstream side of the blown air. A second knurled surface portion 72a that rises and inclines in the upper direction is formed, and a boundary between the first knurled surface portion 71a and the second knurled surface portion 72a is formed from the upper side to the lower side shaft supporting portion 7B.
A first condensed water guide groove 73 extending in the direction is formed.

Therefore, the condensed water generated in the upstream portion 71 of the air blowing air on the surface of the blade portion 7A is reduced from the upstream side to the downstream side by the first knurled surface portion 71a.
While being locked by the concave and convex surface, the water gradually flows downward toward the downstream side, is collected in the second dew condensation water guide groove 74, and flows onto the water receiving portion 7B.

The condensed water generated in the downstream portion 72 of the air blowing air on the surface of the blade portion 7A rises while being locked by the uneven surface of the second knurl surface portion 72a which rises and slopes from the upstream side to the downstream side. The force is suppressed and gradually flows downward, is collected in the third dew condensation water guide groove 75, and flows on the water receiving portion 7B.

Further, the blade 7A is blown by the air blowing air.
The dew water blown by the air flow from the air blow air upstream portion 71 to the downstream portion 72 side is reliably caught by the first dew water guide groove 73 extending vertically, and the blade portion 7A It flows on the lower water receiving portion 7B.

As a result, it is possible to reliably collect dew water on the surface of the blade portion 7A, and effectively prevent the conventional water splash phenomenon.

In the vertical blade structure of the air conditioner indoor unit according to the second aspect of the present invention, cutout grooves 81 are formed on both sides of the water receiving portion 7B so as to penetrate vertically.
The notch grooves 81, 81 communicate with the notch holes 6b, 6b of the lower shaft fitting hole 6 of the vertical blade 7, for example.

Therefore, as described above, the water receiving portion 7
The condensed water collected in the concave groove surface portion 80B passes through the notch grooves 81, 81 of the water receiving portion 7B, for example, the notch holes 6b, 6b of the shaft portion fitting hole 6, and the condensed water of the lower drain pan 1, for example. It is introduced into 96 and is reliably absorbed by, for example, a water-absorbing material 95 provided at the bottom thereof, and is naturally dried.

Thus, the concave groove surface portion 8 of the water receiving portion 7B
The condensed water collected in the drain pan-side groove 95
Introduced within.

As a result, it is possible to reliably treat the drain water.

[0020]

Therefore, according to the vertical blade structure of the present invention, the dew water generated in the blade portion of the vertical blade is reliably collected in the concave groove surface portion of the water receiving portion without being blown into the room by the blowing wind. Further, it is introduced into a predetermined processing section such as a drain pan groove where there is no risk of water splashing, and dried.

[0021]

1 to 9 show the structure of a vertical blade of an indoor unit for an air conditioner according to an embodiment of the present invention.

First, FIG. 1 shows an indoor unit for an air conditioner (hereinafter simply referred to as an indoor unit) with the vertical blades attached.
2 shows the configuration of the lower part of the air outlet. In the figure, reference numeral 1 denotes a drain pan provided at a lower portion inside the main body casing of the indoor unit. The drain pan 1 is a flat plate portion 2a fixed by being stretched between left and right side plates (not shown) of the main body casing, and a side plate. The front end side is supported by a vertical blade mounting plate 2 composed of 2b, 2b and having an inverted U-shaped cross section. A fixing member 4 having a hat-shaped cross section provided with a screw groove 3 for mounting a drain pan as shown in FIG. 2 is integrally welded to the lower surface of the vertical blade mounting plate 2 in the left-right central portion via edges 4a, 4a. Fixed.

As shown in FIG. 5, a water-absorbing material 5 having a predetermined thickness is uniformly adhered to the entire upper surface of the flat plate portion 2a of the vertical blade mounting plate 2. As the water absorbing material 5, for example, a foamed polyurethane foam material or a sponge material is used.

Further, the flat plate portion 2a of the vertical blade mounting plate 2
As shown in FIG. 2 and FIG. 5, a shaft portion for mounting a vertical blade 7 having a substantially Dharma shape as a whole is formed by forming horizontally long cutout holes 6b on both sides in the left-right direction of a circular hole 6a serving as a center. Hole 6
Are arranged side by side at predetermined intervals in the longitudinal direction.

The portion of the water absorbing material 5 corresponding to the shaft portion fitting hole 6 has a circular shape without the water absorbing material 5 so as to surround the shaft portion fitting hole 6 as shown in FIGS. A groove 8 is formed.

The vertical blade mounting plate 2 thus formed
Is fitted from above into a concave groove 96 extending in the left-right longitudinal direction above the drain pan 1. In the fitted state, the lower edges of the side plates 2b, 2b are pressed against the second water-absorbing material 95 provided on the bottom surface of the drain pan-side concave groove 96.

On the other hand, as shown in detail in FIGS. 3, 4 and 6, the vertical blade 7 has a blade portion 7A and a disc-shaped water receiving portion 7B integrally molded below the blade portion 7A. And a shaft portion 7C integrally formed below the water receiving portion 7B.

The blade portion 7A has a rectangular shape as a whole, and the upstream portion 71 of the air blown air A is long about the vertical axis portion OO 'of the shaft portion 7C, and the downstream portion 7
2 is formed short. Then, the upstream side portion 71 and the downstream side portion 7 of the air blown wind A on both left and right surfaces of the blade portion 7A.
As shown in FIG. 3 and FIG. 4, first and second knurl surface portions 71a, 71a, 72a, 72a are formed on each of the two knurls 2, and at their respective boundaries, as shown in FIG. First condensed water guide grooves 73 having a predetermined depth are formed to extend in the direction of the lower water receiving portion 7B and the shaft portion 7C.

The upstream portion 7 of the blade portion 7A on the side of the air blowing air
The respective knurled grooves of the first knurled surface portions 71a, 71a on both left and right surfaces are formed as inclined grooves which are inclined downward from the upper side to the lower side from the upstream side to the downstream side of the air blowing wind A as shown in the figure. At the same time, the knurled grooves of the second knurled surface portions 72a, 72a on both the left and right surfaces of the air blowing air downstream portion 72 of the blade portion 7A are formed from the lower portion to the upper portion from the upstream side to the downstream side of the air blowing air A as shown in the drawing. It is formed in an inclined groove which rises and inclines in the direction.

The first and second knurled surface portions 7
In the state where 1a, 71a, 72a, 72a are formed, second and third dew condensation water guide grooves 74, 74 are provided at the lower portions of the left and right surfaces of the upstream portion 71 and the downstream portion 72 of the blade portion 7A, respectively. , 75, 75 are formed. And
The second and third dew-water guide grooves 74, 74, 75, 75
Are the second condensed water guide grooves 74 of the upstream portion 71.
However, the third dew condensation water guide grooves 75, 75 of the downstream portion 71 are conversely upstream from the air discharge air downstream side. The respective lower ends are formed in inclined grooves which are inclined downward in the lateral direction, and are respectively assembled together with the first dew condensation water guide grooves 73, 73 at a position above the water receiving portion 7B at the lower portion (base portion) of the blade shaft portion 7A. I have.

The upper surface of the water receiving portion 7B is formed in a mortar-shaped concave groove surface portion 80 whose upper surface becomes deeper from the peripheral edge side toward the central axis, and the upper surface of the water receiving portion 7B is in the longitudinal direction of the blade 7A. Notch grooves 81, 81 penetrating vertically as shown in the figure are formed on both left and right sides orthogonal to each other. The notched grooves 81, 81 are provided with the respective lower ends of the first, second, and third condensed water guide grooves 73, 74, 75, in the form of rounded tapered surfaces (concave grooves). (Surface portions) 82, 82.

As shown in detail in FIGS. 3 and 6, the shaft 7C has a cylindrical shaft 91 extending downward at the center axis position of the water receiving portion 7B, and a lower end of the shaft 91. A pair of engaging pieces that are integrally formed so as to protrude in the blade direction.
(Engaging protrusions) 91a, 91a. A slot is formed between the pair of engagement pieces 91a, 91a, so that a slight elastic deformation is possible.

The shaft portion 7C is, for example, shown in FIGS.
As shown in FIG. 5, the vertical blade mounting plate 2 configured as shown in FIG.

That is, first, as shown in FIG.
With the front and rear engagement pieces 91a, 91a provided at the lower end of the shaft body 91 of the vertical blade 7 shaft portion 7C aligned with the left and right cutout holes 6b, 6b of the shaft portion fitting hole 6, the shaft body 31 is formed. Into the central circular hole 6a. In this state, the blade portion 7A and the vertical blade mounting plate 2 are in a state of being juxtaposed on the same axis.

When the shaft 91 is rotated 90 ° in the direction of the arrow (rightward rotation) in this state, the blade 7A and the vertical blade mounting plate 2 are orthogonal to each other as shown in FIG. And the notch grooves 81,
The vertical notch holes 6b, 6b of the Dharma-shaped shaft portion fitting hole 6 of the vertical blade mounting plate 2 correspond to the up and down directions so that they always communicate with each other within a predetermined rotation angle range. Become.
Therefore, in this state, the first and second knurled surface portions 71a, 71a, 72a, 72a and the first to third dew condensation water guide grooves 73, 73 to 75, 75, the tapered surfaces 82, 82 are provided.
The water condensed from the surface of the blade portion 7A collected on the concave groove surface portion 80 of the water receiving portion 7B passes through the notch grooves 81, 81 of the water receiving portion 7B through the notch holes 6b, 6b of the shaft portion fitting hole 6. 6b, the water absorbing material 95 on the inner bottom of the concave groove 96 of the lower drain pan 1
It is introduced and flows down. Then, after being held by the water absorbing material 95, water is naturally dried.

Therefore, according to the structure of the vertical blade of the indoor unit for an air conditioner of the present embodiment, the following effective effects can be obtained.

(1) The dew water generated at the blade portion 7A of the vertical blade 7 is reliably collected on the concave groove surface portion 80 of the water receiving portion 7B without being blown into the room by the blowing wind.

That is, in the above configuration, the first knurled surface portion 71a inclined from the upper portion to the lower portion from the upstream side to the downstream side of the air blown air is provided on the air blow upstream portion 71, 71 on both surfaces of the blade 7A. , 71a, and second knurled surface portions 72a, 72 which are inclined upward and downward from the lower part to the upper part from the upstream side to the downstream side of the air blowing air on the air blowing downstream portions 72, 72 on both surfaces of the blade portion 7A.
a are formed respectively, and the first knurled surface portions 71a, 71a
The first dew water guide grooves 73, 73 extending from the upper side to the lower water receiving portion 7B are formed at the boundary between the first knurled surface portions 72a, 72a.

Therefore, the condensed water generated on both surfaces of the upstream side portion 71 of the air blowing air of the blade portion 7A is reduced from the upstream side to the downstream side by the first knurled surface portion 71.
The water flows gradually downward and obliquely downward on the downstream side while being stopped by the concave and convex surfaces of the a and 71a, and is collected in the second dew condensation water guide grooves 74, 74 and the lower water receiving portion 7B
On the concave groove surface portion 80.

The condensed water generated on both surfaces of the downstream side portion 72 of the blade 7A is discharged from the second knurled surface portions 72a and 72 which rise and incline from the upstream side to the downstream side.
The rising force is suppressed while being locked by the concave and convex surface of a, and gradually flows downward on the upstream side, and is collected in the third dew condensation water guide grooves 75, 75, and the water receiving portion 7 below the blade portion 7A.
B flows on the concave groove surface portion 80.

Further, the blade 7A is blown by the air blowing air.
The dew water blown by the air flow from the air blowing upstream portion 71 to the downstream portion 72 over the knurl portion is the first dew water guide groove 7 extending in the vertical direction.
The water is reliably caught by 3, 73, and flows onto the concave groove surface portion 80 of the lower water receiving portion 7B of the blade portion 7A.

As a result, it is possible to reliably collect dew water on the surface of the blade 7A, and effectively prevent the conventional phenomenon of water splashing from the surface of the blade 7A.

(2) The condensed water collected on the concave groove surface portion 80 of the water receiving portion 7B as described above is surely introduced into the drain pan side concave groove portion 95.

That is, in the above configuration, the water receiving portion 7
Notch grooves 81, 81 penetrating up and down are formed on both sides of B. The notch grooves 81, 81 are formed at predetermined rotation angles with the notch holes 6b, 6b of the lower shaft fitting hole 6 of the vertical blade 7. The range communicates.

Therefore, as described above, the water receiving portion 7
The condensed water collected in the concave groove surface portion 80 of B moves from the notch grooves 81, 81 of the concave groove surface portion 80 to the notch holes 6b, 6b of the shaft portion fitting hole 6.
6b, it is surely introduced into the concave groove 96 of the lower drain pan 1, is surely absorbed by the water-absorbing material 95 provided at the bottom thereof, and is naturally dried.

As a result, the drain water can be reliably treated.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a structure of an indoor unit for an air conditioner according to an embodiment of the present invention in a state where an air outlet of a vertical blade is attached.

FIG. 2 is a perspective view showing the structure of the vertical blade mounting plate of the embodiment as viewed from below.

FIG. 3 is a perspective view showing the structure of the vertical blade of the embodiment, as viewed from above.

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a perspective view of the vertical blade mounting plate of the embodiment as viewed from above.

FIG. 6 is a perspective view of the structure of the vertical blade of the embodiment, as viewed from above, with the vertical position reversed.

FIG. 7 is a bottom view of the structure of the vertical blade of the embodiment.

FIG. 8 is a plan view of a main part showing a first mounting state when the vertical blade of the embodiment is mounted on a vertical blade mounting plate.

FIG. 9 is a plan view of a main part showing the second mounting state.

[Explanation of symbols]

1 is a drain pan, 2 is a vertical blade mounting plate, 5 is a water absorbing material, 6
Is a shaft fitting hole, 6a is a circular hole, 6b is a cutout hole, 7 is a vertical blade, 7A is a blade portion, 7B is a water receiving portion, 7C is a shaft portion, 71
Is the blade upstream portion, 71a is the first knurl surface portion,
72 is a downstream portion of the blade portion, 72a is a second knurled surface portion, 73 is a first dew condensation water guide groove, 74 is a second dew condensation water guide groove, 75 is a third dew condensation water guide groove, and 81 is a cutout groove. , 91 is a shaft body, 91a is an engagement piece, 95 is a water absorbing material, 96
Is a concave groove portion.

Claims (2)

(57) [Claims] 1. A disc-shaped water receiver having a blade (7A) and a concave groove surface (80) below the blade (7A) for receiving dew water flowing down from the blade (7A). A shaft portion (7C) which is rotatably fitted in a shaft portion fitting hole (6) of the vertical blade mounting plate (2) at a lower portion of the water receiving portion (7B). A vertical vane of an indoor unit for an air conditioner, which is positioned above a drain pan (1) of an air outlet and is rotatably pivotally supported and changes and adjusts a direction of air blowing into a room. Department
(7A) A first knurled surface portion (71a), which is inclined downward from the upper portion to the lower portion from the upstream side to the downstream side of the air blown wind, is provided on the upstream side (71A) of the air blown wind. A second knurled surface portion (72a) is formed on the downstream side portion (72) of the air blowing wind from the upstream side to the downstream side of the air blowing wind, the second knurling surface portion (72a) being inclined upward and downward from the lower portion. A first dew-water guide groove (73) is formed at the boundary between the first knurl surface portion (71a) and the second knurl surface portion (72a) so as to extend from the upper side toward the lower water receiving portion (7B). On the other hand, a second condensed water guide groove (74) which is inclined downward from the upstream side to the downstream side of the air blowing air is formed at a lower portion of the first knurled surface portion (71a), and the second knurled surface portion is formed. (72
a vertical blade structure of an indoor unit for an air conditioner, wherein a third condensed water guide groove (75) which rises and inclines from the upstream side to the downstream side of the air blowing air is formed in a lower portion of (a). . 2. A disc-shaped water receiver having a blade portion (7A) and a concave groove surface (80) below the blade portion (7A) for receiving dew water flowing down from the blade portion (7A). A shaft portion (7C) which is rotatably fitted in a shaft portion fitting hole (6) of the vertical blade mounting plate (2) at a lower portion of the water receiving portion (7B). A vertical vane of an indoor unit for an air conditioner, which is positioned above a drain pan (1) of an air outlet and is pivotally supported so as to be able to rotate horizontally and adjusts the direction of air blowing into a room. A notch groove for allowing the dew water retained on the concave groove surface (80) to flow into the concave groove portion (96) of the lower drain pan (1) through the shaft fitting hole (6) in the receiving portion (7B). (81) The vertical blade structure of an indoor unit for an air conditioner, wherein (81) is formed.