JP2001330307A - Air direction altering apparatus of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the difficulty with the prior art wherein ventilation resistance is more increased than a coupling shaft single unit to deteriorate air fan performance, and further since an air direction altering apparatus is disposed near the region of a blow-off section in which air velocity is high, there might be brought into an increase of noise due to collision. SOLUTION: An air direction altering apparatus is adapted such that a coupling shaft cover is provided for covering a coupling shaft, and a lower or upper portion of the coupling shaft cover is extended to the upstream side to configure the apparatus into a wing. The air direction alteration apparatus is characterized in a coupling shaft cover, that is substantially ellipse for covering the coupling shaft from a lower or an upper portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an air conditioner,
More specifically, the present invention relates to a wind direction changing device provided in an indoor unit of an air conditioner.

[0002]

2. Description of the Related Art An indoor unit of an air conditioner has three
There is one that has divided wind direction adjustment plates in the vertical direction and controls each of them to improve the comfort of the living space.

[0003] Further, left and right wind direction changing blades which are separated,
A central wind direction changing blade provided between the left and right wind direction changing blades, a first drive source for integrally driving the left and right wind direction changing blades via a first connection shaft, and a second connection A second drive source for driving the central wind direction changing blade via a shaft, and a connection shaft cover-3 as shown in FIG. 6, which covers the first and second connection shafts.
It is disclosed that 8C and 40C are formed integrally with the wind direction changing blade. As this effect, the appearance can be improved.

[0004]

However, in the above-described conventional configuration, the ventilation resistance is increased as compared with the connection shaft alone, and the ventilation performance is deteriorated. Furthermore, since it is arranged in the region where the wind speed is high in the blowing section, noise due to collision is increased.

The present invention has been made in view of the above-mentioned problems of the prior art, and aims to improve the blowing performance by reducing the blowing resistance and to reduce the generation of noise. It is another object of the present invention to provide a connecting shaft cover for adding a function of further promoting the change of the wind direction (vertical direction).

[0006]

Means for Solving the Problems To achieve the above object, a wind direction changing device for an air conditioner according to claim 1 of the present invention, separated left and right wind direction changing blades, and the left and right wind direction changing blades. A central wind direction changing blade provided between the blades, a first drive source for integrally driving the left and right wind direction changing blades via a first connection shaft, and a second drive shaft via a second connection shaft. A second drive source for driving the central wind direction changing blade;
And a connecting shaft cover for covering the second connecting shaft, wherein the connecting shaft cover has a lower or upper portion extending in the upstream direction to form a wing shape.

According to a second aspect of the present invention, there is provided a wind direction changing device for an air conditioner, wherein the connection shaft cover is a substantially elliptical or elliptical cover which covers the connection shaft from below or above.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows an air conditioner C according to the present invention, in which an underframe 2 attached to a wall surface of a living space,
A front frame 4 attached to the underframe 2 and a suction grille 6 attached to the front frame 4 are provided. At the lower part of the front frame 4, there is formed an air outlet 8 for sending air of which temperature has been adjusted to the living space. The air outlet 8 is closed and the air outlet angle of the temperature adjusted air when opened. (Wind direction)
Is provided.

As shown in FIGS. 2 and 3, a wind direction changing device A includes a wind direction changing blade 10 for changing a vertical blowing angle, and a wind direction changing blade (not shown) for changing a left and right blowing angle. The wind direction changing blades are swingably attached to the front frame 4. Wind direction changing blade 1
0 is provided between left and right wind direction changing blades 12 and 14 which are separated into three pieces and are connected so as to swing integrally, and a central wind direction changing blade 16 which swings independently. It has.

The wind direction changing blade 12 on the left side (as viewed from the front)
On both sides, cylindrical connecting portions 18 and 20 projecting laterally from the support plates 17 and 17 at both ends are formed integrally with the wind direction changing blade 12. The left connecting portion 18 is connected to a driving shaft 22 of a driving source (for example, a motor) 22 fixed to the front frame 4.
a while the right connecting portion 20 is connected to the connecting shaft 24.
Is connected to one end (left end).

The connecting shaft 24 passes through a plurality of support plates 26,..., 26 formed integrally with the central wind direction changing blade 16, and the other end (right end) is integrated with the right wind direction changing blade 14. Crank-shaped connecting part 2 formed in the lateral direction and protruding in the lateral direction
8.

One end (right end) of the central wind direction changing blade 16 is integrally formed with a connecting portion 32 protruding from the back surface thereof. The connecting portion 32 is connected to one end (left end) of a connecting shaft 34, and the connecting shaft 34 passes through the right wind direction changing blade 14 and the support plates 30, ..., 30 and the other end (right end) is a front surface. It is connected to a drive source 36 a of a drive source (for example, a motor) 36 fixed to the frame 4.

The connecting shaft 24 penetrates through the supporting plates 26,..., 26 of the central wind direction changing blade 16, and between the penetrating portions of the supporting plates 26,. As shown in FIG. 4, a wing-shaped connection shaft cover 38A is formed integrally with the lower or upper side extending upstream, and most of the connection shafts are covered by the connection shaft cover 38A. . Similarly, the connecting shaft 34 is integrally provided with a connecting shaft cover 40A having the same shape as the connecting shaft cover 38A between the through portions of the support plates 30,..., 30 of the right wind direction changing blade 14. Most of the connecting shaft 34 is covered with the connecting shaft cover 40A. For this reason, the connecting shaft 2
4, 34 have a structure invisible from the outside, so that the appearance is improved. Further, since the connecting shaft covers 38A and 40A have a wing shape, the ventilation resistance is reduced and the blowing performance is improved. Further, by extending the upper side or the lower side to the upstream side, the vertical wind direction can be changed more efficiently.

Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.

The connecting shaft covers 38B, 40B which cover the connecting shafts 24, 34 shown in FIGS. 2 and 3 are substantially elliptical or oval connecting shaft covers 38B, 40B which cover from below or above shown in FIG. Like In this way, by making the shape approximately elliptical or elliptical, the ventilation resistance is further reduced and the blowing performance is improved. In addition, it is possible to suppress the generation of noise due to the collision of the wind at the blowout portion, and to reduce noise.

[0017]

Since the present invention is configured as described above, it has the following effects.

According to the first aspect of the present invention, since most of the connecting shaft is covered with the connecting shaft cover, the connecting shaft can be seen from the outside and the appearance can be improved.
Further, since the connecting shaft cover has a wing shape, the ventilation resistance is reduced, and the blowing performance is improved. Further, by extending the upper side or the lower side to the upstream side, the vertical wind direction can be changed more efficiently.

According to the second aspect of the present invention, the connecting shaft cover for covering the connecting shaft is formed in a substantially elliptical shape or an elliptical shape for covering from below or above. in this way,
By making the shape approximately elliptical or elliptical, the ventilation resistance is further reduced and the blowing performance is improved. In addition, it is possible to suppress the generation of noise due to the collision of the wind at the blowout portion, and to reduce noise.

[Brief description of the drawings]

FIG. 1 is a perspective view of an air conditioner provided with a wind direction changing device according to the present invention.

FIG. 2 is a perspective view of a wind direction changing device according to the present invention.

FIG. 3 is an exploded perspective view of the wind direction changing device of FIG. 2;

FIG. 4 is an enlarged longitudinal sectional view of a central wind direction changing blade provided in the wind direction changing device according to the first embodiment of the present invention;

FIG. 5 is an enlarged longitudinal sectional view of a central wind direction changing blade provided in a wind direction changing device according to a second embodiment of the present invention.

FIG. 6 is an enlarged longitudinal sectional view of a central wind direction changing blade provided in a conventional wind direction changing device.

[Explanation of symbols]

2 underframe 4 front frame 6 suction grille 8 air outlet 9 rear guider 10, 12, 14, 16 wind direction changing blade 17, 26, 30 support plate 1, 20, 28, 32 connecting portion 22, 36 drive source 22a, 36a drive shaft 24, 34 Connecting shaft 38, 40 Connecting shaft cover (A: wing shape B: elliptical shape C: conventional shape) 42, 44, 46 Support member A Wind direction changing device C Air conditioner

Claims (2)

[Claims] The left and right wind direction changing blades are separated from each other, a central wind direction changing blade provided between the left and right wind direction changing blades, and the left and right wind direction changing blades via a first connecting shaft. A first drive source that drives the first wind direction changing blade through a second connection shaft, and a connection shaft cover that covers the first and second connection shafts. A wind direction changing device for an air conditioner, wherein the connection shaft cover has a lower or upper portion extending in the upstream direction to form a wing shape. 2. The air direction changing device for an air conditioner according to claim 1, wherein the connecting shaft cover is formed in a substantially elliptical shape or an oval shape that covers the connecting shaft from below or above.