JP3451684B2 - Wind direction changing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind direction changing device for a blowout grill provided in an air conditioner or a duct blower.

[0002]

2. Description of the Related Art The structure of a conventional wind direction changing device is shown in FIG. FIG. 3 is an enlarged cross-sectional view of the indoor unit.

[0003] The conventional indoor unit, outlet grill 4, 1 first underframe, lateral wings 8, the vertical blade 9 is provided a wind direction changing apparatus to further control the blowout wind the vertical blade 9 Figure As shown in, the lower part of the blade had a structure with no protrusion.

[0004]

However, in the above-mentioned conventional structure, when the indoor temperature condition becomes a high humidity condition,
Condensation water adheres to the surface of the vertical blade 9 and collects at the bottom of the vertical blade with the passage of time. Further, due to the surface tension, the water droplets grow to become large-sized water droplets and hang down at the lower part of the vertical blade, and are blown off by the blowing air and scattered to the indoor side.

The present invention solves the above-mentioned conventional problems without increasing the number of parts, and prevents dew condensation water from splashing indoors due to dew condensation on the wind direction changing device when the indoor temperature is high. .

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, from the upwind side, without increasing the number of parts.
The leeward side of the vertical blades that are inclined to descend leeward
The ribs that extend in the direction of the lower frame of the blowing grille are provided at the lower part of the tip of the blowing grille , so that the dew condensation water that has condensed on the vertical blades grows into large-sized dew condensation water before it blows out. Therefore, it is possible to prevent the dew condensation water from splashing into the room.

Further, in the present invention, the rib tip structure at the lower part of the vertical blade is made into a tapered shape so that the dew condensation water that is guided easily drops to the blowing grille before it grows due to surface tension. It is possible to prevent scattering.

Further, according to the present invention, the gap between the rib tip at the lower end of the vertical blade and the blowing grill is set to 2 mm or less,
When the condensed water drops from the rib tip to the grill,
It is possible to prevent the air from falling to the blowing grill and being scattered into the room before being blown by the blowing air.

Furthermore, the present invention is in the vicinity of the vertical blade under side, front
From the windward side to the leeward side so that it is almost parallel to the bottom side of the vertical blade.
It is possible to prevent the condensed water from being scattered indoors by concentrating the condensed water condensed on the blades at the lower part of the blade tip provided with the ribs by providing the L-shaped notch having the inclination to descend .

[0010]

The operation of the above means is as follows.

According to the present invention, the structure in which the rib is provided at the lower end of the vertical blade collects the dew condensation water condensed on the vertical blade to the front of the vertical blade by the blowing air, and further collects it at the lower part of the vertical blade by its own weight. By providing a rib that guides the condensed water by utilizing such a characteristic, it is possible to prevent the condensed water from scattering into the room.

Further, by making the rib tip structure a tapered structure, it is possible to improve the drainage of the rib tip, prevent the condensed water from being held at the rib tip, and smoothly guide the condensed water to the blowing grille. Can be prevented from scattering into the room.

Further, by setting the gap between the rib tips at the lower ends of the vertical blades and the blowing grill to be 2 mm or less, the condensed water can be surely dropped to the blowing grill portion and blown into the room during the fall. To prevent.

Further, an L-shaped cutout is provided in the lower portion of the vertical blade to provide a thin portion for guiding the condensed water to the ribs before the condensed water collects on the ribs. ing.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will now be described with reference to FIG.
A description will be given based on FIG.

In FIG. 1, reference numeral 1 is a first underframe of an indoor unit of an air conditioner, and a main body (indoor unit) is a first underframe .
Click for performing heat exchanger 2 and the indoor air circulation in the underframe 1
It has a configuration in which a loss flow fan 3 is provided , and a blowing grill 4 is attached to an indoor air blowing portion. Front face
Is provided so as to cover the surface of the heat exchanger 2.
Has been. The blowing grill 4 has an upper frame 5, a lower frame 6,
And a side wall (not shown) on the left and right sides, which is an integrally molded product of synthetic resin. A plurality of vertical ribs 7 of the blowing grill 4 support lateral blades 8 which can be driven in the vertical direction and whose wind direction can be changed , and a plurality of winds are provided between the upper frame 5 and the lower frame 6.
The vertical blades 9 whose direction can be changed are provided, and the connecting rails 10 can be interlocked. Air conditioner drives
Then, the cross flow fan 3 rotates and the air inside the room
Inside the indoor unit, passing through the surface grill and heat exchanger 2.
Is sucked in, passes through the cross flow fan 3, and blows out.
From Lil 4, it is blown again to the inside of the room. At this time, vertical blades
The blown wind passes through the surfaces of 9 and the side blades 8.

Further, the tip under a plurality of vertical blades 9 and ribs 11 is provided, when the indoor temperature reaches humid conditions, condensed water condensed in the vertical vane 9 along the surface of the vertical blade 9
The ribs 11, the ribs 11 guide the lower frame 6, and the second underframe 12 has a hole 13 for absorbing condensed water.
It is better absorbed and is prevented from being blown off by the blowing air and scattering into the room.

Next, a second embodiment of the present invention will be described. By forming the rib 11 at the lower end of the vertical blade 9 into a tapered shape as shown in the drawing, the lower frame is formed before the condensed water condensed on the vertical blade 9 grows into large particles due to surface tension. 6 to prevent it from being placed indoors when blown off by the blowing air.

Next, a third embodiment of the present invention will be described with reference to FIG. The clearance between the tip of the rib 11 below the tip of the vertical blade 9 and the lower frame 6 is set to 2 mm or less as shown in the figure,
When the condensed water drops from the rib tip to the grill,
The purpose of this is to prevent it from falling to the blowing grill and scattering into the room before being blown by the blowing air.

Next, a third embodiment of the present invention will be described with reference to FIG. From the windward side to the leeward side at the bottom of the vertical blades 9.
By providing an L-shaped notch 14 having a slope that descends and making a thin portion 15 before the condensed water reaches the ribs 11, the condensed water condensed on the vertical blades 9 can be surely transferred to the ribs 11. By collecting and guiding the condensed water to the lower frame 6, it is possible to prevent the condensed water from being scattered in the room, thereby enabling more reliable treatment of the condensed water.

[0021]

As apparent from the above embodiment, the present invention is
By increasing the ribs on the leeward end of the vertical blades without increasing the number of parts, the dew condensation water that has condensed on the vertical blades is blown off by the blowing air when the indoor temperature conditions become humid. It is possible to prevent the particles from scattering to the inside of the room and polluting the room.

[Brief description of drawings]

FIG. 1 is a sectional view of an indoor unit showing an embodiment of the present invention.

[Fig. 2] Detailed enlarged view of the blowing grill

FIG. 3 is a detailed enlarged view of a conventional blowing grill part having wind direction changing blades.

[Explanation of symbols]

2 heat exchanger 3 cross flow fan 4 blowing grille 5 upper frame 6 lower frame 9 vertical blades 10 connecting bar

Front page continued (58) Fields surveyed (Int.Cl. ⁷ , DB name) F24F 1/00 401 F24F 13/00-13/18

Claims (4)

(57) [Claims] 1. A wind circuit of an air conditioner is constituted by a first underframe, a front grille, a heat exchanger and a cross flow fan in an indoor unit of the air conditioner so as to blow air to the indoor side. , An upper frame, a lower frame, left and right side walls, and a grill and a horizontal blade and a vertical blade for changing the direction of the air flow. The lower side of the vertical blade descends from the windward to the leeward.
The lower edge of the vertical blade on the leeward side of the vertical blade.
A rib that extends toward the lower frame of the outlet grill is provided.
A wind direction changing device characterized by and . 2. The wind direction change according to claim 1, wherein the rib tips are tapered so that the condensed water formed by dew condensation on the ribs at the lower ends of the vertical blades is smoothly guided to the blowing grille. apparatus. 3. claims condensed water condensed in the vertical blades is characterized in that setting the gap between the tip and the outlet grill portion of the blade root tips bottom of the rib as directed in the grille balloon smoothly 2mm or less Item 2. The wind direction changing device according to item 2. 4. Positioned substantially parallel to the lower side of the vertical blade
An L-shaped notch is provided near the lower side of the vertical blade.
The wind direction changing device according to claim 1, wherein: