JP3324976B2 - Indoor unit of 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 an indoor unit of an air conditioner, and more particularly to a wind direction device for adjusting the direction of wind emitted from an outlet of an indoor unit.

[0002]

2. Description of the Related Art A conventional wind direction device in an indoor unit of an air conditioner is disclosed in Japanese Patent Application Laid-Open No. 3-67950.

FIG. 10 is a partial vertical sectional view of an indoor unit of a conventional air conditioner. In FIG. 10, reference numeral 1 denotes a front cover, 2 denotes an air inlet provided in the front cover 1, and 3 denotes a heat exchanger. , 4 is a blower fan, 5 is a blower fan 4
, A rear guider which forms an air passage 7, 6 is a stabilizer which is close to the blower fan 4 and forms a rear air passage 7 with the rear guider 5, 8 is a wind outlet at the tip of the air passage 7, and 9 is an outlet 8. The upper and lower blades 10 that rotate up and down around an axis in order to change the wind direction in the vertical direction (vertical direction) at 10 are blades.

FIG. 11 is a plan sectional view of the outlet of FIG. 10. In FIG. 11, reference numeral 8a denotes a central portion of the outlet 8, and 8b denotes both ends of the outlet 8. The central blade 10a at the center of the outlet and the left and right blades 10b at both ends of the outlet are arranged parallel to the longitudinal direction of the outlet 8, and the plane of the blade is straight and vertical. And the central blade 10a located at the central portion of the outlet
Are oriented such that air is emitted straight in the front direction A. On the other hand, the left and right blades 10b at both end portions 8b of the outlet are a plurality of left and right blades that rotate left and right around an axis in order to change the wind direction at the outlet 8 in the horizontal direction (left and right direction). , So as to block both end portions 8b of the outlet.

The flow of air will be described with reference to FIG. The indoor air a is sucked through a suction port 2 provided in the front cover 1, passes through a heat exchanger 3, and is sucked into a blower fan 4. The air sucked into the blower fan 4 passes through the blower passage 7 and is discharged from the outlet 8.

As shown in FIG. 11, when the left and right blades 10b located at both ends 8b of the outlet are rotated, both ends 8b of the outlet are shielded flat.
An air passage to the central portion 8a of the outlet is formed. Wind is at both ends of the outlet (shielded part) 8
b, it is difficult to blow out, and converges to the central portion 8a of the outlet. Then, the wind blows through the central blade 1 at the central portion of the outlet, where the outlet is not shielded and the blowing resistance is low.
0a, and is blown out from the central portion 8a of the blowout port (in the direction of arrow A).

Here, suppose that both end portions 8b of the outlet are provided.
If the left and right blades 10b are arranged so that a part of the blades overlap when rotating, the wind is more difficult to blow out from both ends (shielded portion) 8b of the outlet, and the wind is directed to the central portion 8a of the outlet. The convergence rate increases. And the speed of the wind blown out from the outlet 8a at the center is
Will increase.

As described above, if the same air volume is maintained, the wind speed increases as the cross-sectional area of the outlet 8 decreases.

Conventionally, the left and right blades 10b
Is rotated to block a part of the outlet 8, thereby forming a concentrated air flow toward the living space.

[0010]

However, as described above, the left and right blades 10 at both end portions 8b of the outlet are simply provided.
In an indoor unit of an air conditioner having a wind direction device that forms airflow to the central portion 8a of the outlet by rotating both ends b of the outlet by blocking b, the two ends of the outlet are originally used. In the case of 8b, the air flow was worse than that of the central portion 8a, and the air tended to accumulate.

Then, the left and right blades 10b located at both end portions 8b of the outlet are rotated to rotate at both end portions 8b of the outlet.
If b is shielded, the air flow at both end portions 8b of the outlet becomes worse and the air accumulates at that position, so that a large load is applied to the blower fan 4 that sends the wind. In this case, an abnormal sound was easily generated due to a blow of the blower fan 4.

The central blade 10a is arranged parallel to the opening surface of the outlet 8, and the surface of the blade is not inclined, so that the left and right blades 10b located at both end portions 8b of the outlet are rotated. In this case, both ends 8b of the outlet are shielded flat, so that a collision flow occurs at the central portion 8a of the outlet where the flow is concentrated, or both ends (shielding portions) 8b of the outlet are connected to the outlet 8b. An entrainment flow is generated at the boundary of the central portion (blow-out portion) 8a of the mouth, and the wind speed decreases. Therefore, the effect of converging the air volume and intensively reaching the part where people are present and the part of the floor cannot be sufficiently exhibited.

In the method of simply rotating the left and right blades 10b to shield the outlet 8, the left and right blades 10b
The shape of the left and right blades 1 and the shape of the connecting portion for interlocking the plurality of left and right blades 10b are not devised unless the left and right blades
When rotating 0b to shield, there is a gap between the left and right blades and the left and right blades, that is, a gap is formed in a portion to be shielded, and the outlet 8 cannot be completely shielded, and a leakage flow occurs. Therefore, it was difficult to sufficiently converge the air volume.

The present invention has been made to solve the above-mentioned conventional problems, and has the following effects.
Let the wind intensively reach the part where people are and the part of the floor,
It is an object of the present invention to provide an indoor unit of an air conditioner that improves comfort of a living space.

[0015]

The present invention SUMMARY OF] In order to achieve the object by solving the above problems, a first aspect of the present invention, blow at least one or more blades on the edge of the outlet
The blades are inclined in the longitudinal direction of the outlet, and the inclined blades
Configured at the ash to shield a portion of the outlet of the rotated and send path.

According to a second aspect of the present invention, the blade according to the first aspect has a shape in which corner portions of the blade are eliminated so that the blade does not hit the air outlet during rotation.

According to a third aspect of the present invention, the shape of the blade according to the first aspect is changed depending on the position of the blade.

According to a fourth aspect of the present invention, several blades including the inclined blades according to the first aspect and located at both ends of the outlet are arranged in an inverted C shape.

According to a fifth aspect of the present invention, a plurality of blades including the inclined blades according to the first aspect and located at both ends of the outlet are held on a base, and the blades themselves block the wind. And the pedestal itself rotates in a direction away from the blower fan.

According to a sixth aspect of the present invention, the blade has the shape and the connecting method according to the fifth aspect, and furthermore, some of the blades located at the central portion of the outlet are held on the pedestal, and the pedestal itself is also provided. It turns into an inverted C-shape.

According to the first to fourth aspects of the present invention, the collision flow at the central portion where the flow is concentrated at the outlet, the both ends (shielding portion) of the outlet and the central portion (outlet portion) of the outlet. Can be reduced at the boundary of the boundary, and a smooth and high-speed flow can be formed.

Further, since the disturbance of the flow is reduced, noise is also reduced. Even if the opening rate of the outlet is reduced and the air volume is converged and the wind speed is increased, the noise does not increase rapidly.

According to the fifth and sixth aspects of the present invention, if the outlet is blocked at the position of the conventional blade, the load on the blower fan rises, and the noise generated by the blower fan, which tends to occur, is suppressed. And the wind speed can be increased with low noise.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION
A main body frame, a blower fan in which a plurality of blades having a certain length are arranged in a columnar shape and a plurality of blades arranged in a cylindrical shape are combined in a rotation direction, a stabilizer positioned close to and opposed to the blower fan, and the stabilizer And a rear guider that forms an air passage with the heat exchanger, and upper and lower blades that vertically change the wind direction at the air outlet of the air passage as wind direction control means, and a plurality of blades that horizontally change the wind direction, At least one or more of the blades located at the end of the outlet are inclined in the longitudinal direction of the outlet.
Set the blades to be inclined and rotate the inclined blades to send
And a part thereof is shielded so that the shielding position is in the vicinity of the throat portion where the stabilizer and the rear guider are narrowed closest to each other in the vertical cross section of the main body.

According to a second aspect of the present invention, the blade according to the first aspect has a shape in which a corner portion of the blade is eliminated so that the blade does not hit the air outlet during rotation.

According to a third aspect of the present invention, in the blade according to the first aspect, the shape of the blade is changed depending on the position of the blade so that a portion of the outlet that is desired to be shielded during rotation can be shielded without a gap. .

According to a fourth aspect of the present invention, some of the blades including the inclined blades according to the first aspect and located at both ends of the outlet are viewed in a plane cross section of the main body when the outlet is partially shielded. It is arranged in an inverted C-shape so that the wind flows straight toward the center of the outlet.

According to a fifth aspect of the present invention, a plurality of blades including the inclined blades according to the first aspect and located at both ends of the outlet are held on a pedestal, and the blades themselves block the wind. While rotating, the pedestal itself rotates in a direction away from the blower fan.

According to a sixth aspect of the present invention, some of the blades located at both ends of the outlet have the shape and the connecting method according to the fifth aspect, and some of the blades are located at the center of the outlet. The blades are also held on a pedestal, and the pedestal itself also rotates to form an inverted C shape so that the wind flows linearly toward the center of the outlet.

According to the first to fourth aspects of the present invention, the collision flow at the central portion where the flow is concentrated at the outlet, the both ends (shielding portion) of the outlet and the central portion (outlet portion) of the outlet. Can be reduced at the boundary of the boundary, and a smooth and high-speed flow can be formed.

Further, noise is reduced due to the reduction of the turbulence of the flow. Even if the opening rate of the outlet is reduced and the air volume is converged to increase the wind speed as compared with the related art, the noise does not increase sharply.

According to the fifth and sixth aspects of the present invention, when the outlet is shielded at the position of the conventional blade,
The load on the blower fan rises, and it is also possible to suppress the rattling sound peculiar to the blower fan, which is easily generated, and it is possible to reduce the noise and increase the wind speed.

Hereinafter, each embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. (Embodiment 1) FIG. 1 is a vertical sectional view of an indoor unit of an air conditioner according to Embodiment 1 of the present invention, FIG. 2 is a front view of the indoor unit, and FIG. FIG. 4 is a cross-sectional plan view of the outlet (detailed later).
It is.

1, 2, 3 and 4, reference numeral 1 denotes a front cover, 2 denotes an air inlet provided on the front cover 1 and the body frame 11, 3 denotes a heat exchanger, 4 denotes a blower fan Reference numeral 5 denotes a rear guider around the blower fan 4 and forms a blower passage 7, and reference numeral 6 denotes a rear guider 5 which is close to the blower fan 4.
The stabilizer 8 which forms the air passage 7 is a wind outlet at the tip of the air passage 7, and as shown in FIG. 2, comprises a central portion 8a and outlets at both ends 8b. The upper and lower blades 9 rotate up and down around the axis to change the wind direction at the outlet 8 in the vertical direction (vertical direction), and 10 to change the wind direction at the outlet 8 in the horizontal direction (right and left direction). In addition, as shown in FIG. 2, a plurality of blades rotating left and right about an axis, the center blade 10a is located at a central portion 8a of the outlet, and the left and right blades 10b are located at both end portions 8b of the outlet. . Further, 10c shown in FIG.
b, at least one of the left and right blades 10b whose inclination is movable, 11 is a main body frame, 12 is a detachable air filter inside the front cover 1, 13
Is a connecting bar connecting and linking a plurality of central blades 10a and left and right blades 10b, and 14 is a central blade 10a and left and right blades 10b.
The rotation axis 15 is a throat portion where the rear guider 5 and the stabilizer 6 can be narrowed down most closely when the central blade 10a and the left and right blades 10b rotate to block the outlet 8, and 16a shown in FIG. Is a pedestal on which the central blade 10a at the center of the outlet is mounted, and 16b is a pedestal on which the left and right blades 10b at both ends of the outlet are mounted.

FIG. 3 is a front view of the outlet 8 in a steady state (to be described later). At least one of the left and right blades 10b (five in FIG. 3) located at both end portions 8b of the outlet is shown.
The inclination of the left and right blades 10c (two in FIG. 3) is movable.

FIG. 4 is a plan sectional view of the outlet 8.
FIG. 4A shows all the center blades 10a and the left and right blades 10a.
FIG. 3B is a plan cross-sectional view of a state in which air is discharged at all positions in the longitudinal direction (full opening surface) of the outlet without blocking the outlet 8 (hereinafter, referred to as a steady state). FIG. 4B shows several left and right blades 10b (left and right blades 10b) located at both end portions 8b of the outlet.
FIG. 3 shows a plan cross-sectional view of a state in which both ends of the outlet 8 are shielded by rotation of (c is inclined) (hereinafter referred to as a closed state of the outlet).

The flow of air will be described with reference to FIG. The room air a is sucked from the suction port 2, passes through the air filter 12 and the heat exchanger 3, and is sucked into the blower fan 4. The air sucked into the blower fan 4
Through the outlet 8.

As shown in FIGS. 3 and 4 (a), in the steady state, all the central blades 10a at the center and the right and left blades 10b at both ends of the outlet do not block the outlet 8. The wind is discharged forward (in the direction of arrow A) at all positions in the longitudinal direction of the outlet.

Next, as shown in FIG. 4 (b), when the left and right blades 10c of the left and right blades 10b at both ends of the outlet are rotated to cover both ends 8b of the outlet, wind is blown from the outlet. It becomes difficult to blow out from both ends 8b,
It converges on the central portion 8a of the outlet and blows out between the central blades 10a at the central portion of the outlet (in the direction of arrow B).

In this shielded state of the outlet, since the left and right blades 10c at both ends of the outlet are inclined, the shield is not obstructed at both ends 8b of the outlet, but obliquely. become. For this reason, the wind hits the wall (the surface of the left and right blades) 10b obliquely, not perpendicularly, and moves smoothly toward the central portion 8a of the outlet.

As described above, by inclining the left and right blades 10c at both ends of the outlet, the collision flow at the central portion 8a where the flow is concentrated at the outlet 8, and both ends (shielding portions) 8b of the outlet at the center 8a. Since the entrained flow generated at the boundary of the central portion (blow-out portion) 8a of the mouth can be reduced, the blow-out flow can be efficiently converged, and a smooth flow having a high wind speed can be formed.

Further, when the amount of air blown from the outlet 8 is changed in accordance with the change in the number of revolutions of the blower fan 4, a joint is provided between the left and right blade wing surfaces and the rotation shaft in the left and right blades 10c, and a coil spring and the like are incorporated therein. By making the inclination of the left and right blade wing surfaces variable, a smooth flow can be formed.

(Embodiment 2) FIG. 5 shows the structure of an indoor unit of an air conditioner according to Embodiment 2 of the present invention and the operating state thereof. Here, portions having the same configuration and operation as those of the first embodiment will not be described in detail with reference to FIGS. 1 to 4, and different portions will be mainly described.

FIG. 5A shows the left end portion 8 of the outlet 8.
The three views (top view (1), front view (2), left side view (3)) of the steady state of the inclined left and right blades 10c located at position b are shown. Further, FIG.
(A) shows three views (top view (1), front view (2), right side view (3)) when the left and right blades 10c rotate to shield the outlet 8.

As shown in FIG. 5, the shape of the left and right blades 10c (inclined) is not rectangular, but has a shape in which a corner 10c-1 is cut off so as not to hit the outlet 8 during rotation. .

By doing so, for example, FIG.
When the left and right blades 10c are to be rotated around the rotation shaft 14 so as to be in a state where the outlets are shielded from the steady state shown in FIG. 4B, they rotate smoothly without hitting the outlets 8. be able to.

(Embodiment 3) FIG. 6 shows an indoor unit structure of an air conditioner according to Embodiment 3 of the present invention and an operation state thereof. Here, portions having the same configuration and operation as those of the first embodiment will not be described in detail with reference to FIGS. 1 to 4, and different portions will be mainly described.

FIG. 6 is a three-view drawing (top view (1), front view (2), right side views (3) and (4)) of the central blade 10a located at the central portion 8a of the outlet in a steady state. Is shown. FIG. 5A is a three-view diagram of the stationary state of the left and right blades 10c located at the left end portion 8b of the outlet, as described in the second embodiment.

When the outlet 8 is to be shielded by the central blade 10a, the inclination of the central blade 10a may be different depending on the position of the central blade 10a at the outlet 8, so that the outlet 8 may be shielded by the central blade 10a. The required area is different.

Therefore, the left and right blades 10c at both ends shown in the left side view (3) of FIG. 5 (a) and the right side view (3) of FIG.
The shape of the central blade 10a in the central portion shown in FIG. That is, the shapes of the left and right blades 10c shown in (3) of FIG. 5A and the center blades 10a shown in (3) and (4) of FIG. 6 are different, and the center blade 10a has a slightly larger area than the left and right blades 10c. 6 (3), even with the same central blade 10a,
The shape is different as shown in (4). Of course, the corner 10a-1 is cut off so as not to hit the outlet 8.

By doing so, for example, FIG.
As shown in FIGS. 7 (b), 8 (b) and 9 (b), which will be described later, when the outlet 8 is to be shielded by the central blade 10a and the left and right blades 10b, it is desired to shield the outlet 8. Parts can be shielded without gaps.

(Embodiment 4) FIG. 7 shows an air outlet 8 of an indoor unit of an air conditioner according to Embodiment 4 of the present invention.
FIG. 5 is a plan sectional view showing the operation state of FIG. Here, the parts having the same configuration and operation as those of the first embodiment will not be described in detail with reference to FIGS. 1 to 4, and different parts will be mainly described. FIG. 7A shows a steady state, and FIG.
(B) shows the state of shielding the outlet.

In FIG. 7, reference numeral 10a denotes a center blade located at the center 8a of the outlet, 10b denotes left and right blades located at both ends 8b of the outlet, and 10c denotes left and right blades 10b located at both ends 8b of the outlet. At least one of the left and right blades 13 is a connecting bar that connects and links the plurality of central blades 10a and the left and right blades 10b.

As shown in FIG. 7, the central blade 10a located at the central portion 8a of the outlet 8 is arranged in parallel with the longitudinal direction of the outlet 8, and the left and right sides located at both end portions 8b of the outlet 8 are arranged. The blades 10b are arranged in an inverted C shape.

As shown in FIG. 7A, in the steady state,
Since the central blade 10a at the center of all the outlets and the left and right blades 10b at both ends of the outlet do not block the outlet 8, the wind is blown forward at all positions in the longitudinal direction of the outlet 8. (Direction of arrow A).

Next, as shown in FIG. 7B, the central blade 10a located at the central portion 8a of the outlet is
The left and right blades 10b (1) are oriented so as to be able to discharge air in the same manner as (a), and are located at both end portions 8b of the outlet.
0c) is rotated to shield both end portions 8b of the outlet. In the shielded state of the outlet, the wind is hard to blow out from both end portions 8b of the outlet, converges on the central portion 8a of the outlet, and the central blade 10a at the central portion of the outlet.
And blows out (in the direction of arrow B).

In the closed state of the outlet, the left and right blades 10b located at both end portions 8b of the outlet are arranged in an inverted C-shape with respect to the longitudinal direction of the outlet, so that wind is generated at the center of the outlet. When the air is converged to 8a, the air flows linearly and smoothly toward the central portion 8a of the outlet.

As described above, by arranging the left and right blades 10b located at both end portions 8b of the outlet in an inverted C shape, the left and right blades 10b at both end portions of the outlet are rotated, and both end portions 8b of the outlet are rotated. When the wind is blocked, the wind flows linearly toward the central portion 8a of the outlet, and the outlet flow can be efficiently converged to the center.

(Embodiment 5) FIG. 8 shows an air outlet 8 of an indoor unit of an air conditioner according to Embodiment 5 of the present invention.
FIG. 5 is a plan sectional view showing the operation state of FIG. Here, the parts having the same configuration and operation as those of the first embodiment will not be described in detail with reference to FIGS. 1 to 4, and different parts will be mainly described. FIG. 8A shows a steady state, and FIG.
(B) shows the state of shielding the outlet.

In FIG. 8, reference numeral 10a denotes a central blade located at the central portion 8a of the outlet, and 10b denotes left and right portions which are located at both end portions 8b of the outlet and are held on pedestals 16b at both end portions of the outlet. The blades 10c are at least one of the left and right blades 10b located at both end portions 8b of the outlet, and at least one of the left and right blades 13 is a connecting beam for connecting and interlocking each of the plurality of central blades 10a and the left and right blades 10b. 16b is left and right blades 1 at both ends of the outlet.
A pedestal 4 on which 0b is mounted and which has a rotating shaft and can rotate is a blower fan.

As shown in FIG. 8, the central blade 10a located at the central portion 8a of the outlet is arranged parallel to the longitudinal direction of the outlet 8. The left and right blades 10b located at both end portions 8b of the outlet are held by pedestals 16b at both end portions of the outlet, and the left and right blades 10b themselves rotate in the direction of blocking the wind, and the pedestals 16b themselves Also rotates in a direction away from the blower fan 4.

As shown in FIG. 8 (a), in the steady state, the central blade 10a at the center of all the outlets and the left and right blades 10b at both ends of the outlet do not block the outlet 8. The wind is blown forward at all positions in the longitudinal direction of the outlet 8 (arrow A direction).

Next, as shown in FIG. 8B, the central blade 10a located at the central portion 8a of the outlet is
In the same manner as in (a), it is oriented so that air can be released, and the pedestals 16b at both ends of the outlet on which the left and right blades 10b located at the both ends 8b of the outlet are rotated so as to form an inverted C shape. At the same time, the left and right blades 10b on the pedestal 16b rotate to shield both end portions 8b of the outlet. In the shielded state of the outlet, the wind is hard to blow out from both end portions 8b of the outlet, converges on the central portion 8a of the outlet, and the central blade 1 at the central portion of the outlet.
0a (in the direction of arrow B).

In the closed state of the outlet, the pedestals 16b at both ends of the outlet on which the left and right blades 10b located at both ends 8b of the outlet are mounted rotate, and the left and right blades 10b at both ends of the outlet are blown. With the shape of an inverted letter C in the longitudinal direction of the mouth, when the wind is converged on the central portion 8a of the outlet, the air flows smoothly and linearly toward the central portion 8a of the outlet. Therefore, the load on the blower fan 4 side is also reduced, and the blow noise of the blower fan 4 is also reduced.

As described above, by holding the left and right blades 10b located at both end portions 8b of the outlet on the pedestals 16b at both end portions of the outlet, when the flow of the wind is shielded when the outlet is blocked. The generated blown noise of the blower fan 4 can be suppressed.

In the steady state, the pedestals 16b at both ends of the outlet are rotated in the opposite direction so that the positions of the left and right blades 10b at both ends of the outlet are parallel to the longitudinal direction of the outlet. Can be returned to
It is also possible to prevent the left and right blades 10b at both ends of the outlet from being close to the blower fan 4 and increase the load on the left and right blades 10b as in the state where the outlet is blocked.

(Embodiment 6) FIG. 9 shows an air outlet 8 of an indoor unit of an air conditioner according to Embodiment 6 of the present invention.
FIG. 5 is a plan sectional view showing the operation state of FIG. Here, the parts having the same configuration and operation as those of the first embodiment will not be described in detail with reference to FIGS. 1 to 4, and different parts will be mainly described. FIG. 9A shows a steady state, and FIG.
(B) shows the state of shielding the outlet.

In FIG. 9, reference numeral 10a denotes a central blade 8a of the outlet, and central blades 10b held on the pedestal 16a at the center of the outlet 10b are located at both end portions 8b of the outlet. The left and right blades 10c held on the pedestals 16b at both ends of the outlet are at least one inclined left and right blade 13b of the left and right blades 10b located at both ends 8b of the outlet. A connecting bar for connecting and moving each of the central blade 10a and the left and right blades 10b, 16a is a pedestal on which the central blade 10a at the center of the outlet is mounted and has a rotating shaft and can rotate, and 16b is a base for the outlet. A pedestal 4 on which the left and right blades 10b at both end portions are mounted and which has a rotating shaft and can rotate is a blower fan 4.

As shown in FIG. 9, the left and right blades 10b located at both ends 8b of the outlet are held by pedestals 16b at both ends of the outlet.
The pedestal 16b itself rotates in a direction away from the blower fan 4 while rotating in the direction of shutting off the wind. Further, the central blade 10a located at the central portion 8a of the outlet is also held by the pedestal 16a at the central portion of the outlet, and the central blade 10a itself rotates in a direction of blocking the wind, and the pedestal 16a itself is also rotated. It rotates to form an inverted C shape in the longitudinal direction of the outlet.

As shown in FIG. 9A, in the steady state, the central blade 10a at the center of all the outlets and the left and right blades 10b at both ends of the outlet do not block the outlet 8, so that The wind is blown forward at all positions in the longitudinal direction of the outlet 8 (arrow A direction).

Next, as shown in FIG. 9 (b), the pedestals 16b at both ends of the outlet on which the left and right blades 10b located on both ends 8b of the outlet are rotated so as to form an inverted C-shape. At the same time, the left and right blades 1 on the pedestal 16b
0b rotates to cover both end portions 8b of the outlet, and furthermore, the central blade 1 located at the central portion 8a of the outlet.
The base 16a at the center of the outlet on which the 0a is placed is rotated so as to form an inverted C-shape, and the center 8a of the outlet is rotated.
At the same time, the central blade 10a on the pedestal 16a rotates so as to block the central portion 8a of the outlet.
From the center of the outlet and blows out from the center of the outlet (in the direction of arrow B).

In this shielded state of the outlet, the pedestal 16b at both ends of the outlet on which the left and right blades 10b located at both ends 8b of the outlet are mounted and the central blade 10a located at the central portion 8a of the outlet are mounted. The pedestal 16a at the center of the outlet rotates and the left and right blades 1
When the wind converges on the central portion 8a of the outlet, the air is converged on the central portion 8a of the outlet.
Since the air flows smoothly and linearly toward “a”, the load on the blower fan 4 is reduced, and the blow noise of the blower fan 4 is also reduced.

As described above, the left and right blades 10b located at both ends 8b of the outlet are placed on the pedestals 16b at both ends of the outlet, and the center blade 10a located at the center 8a of the outlet is placed at the center of the outlet. Part of pedestal 16
By holding the blower on a, it is possible to suppress the blown noise of the blower fan 4 generated when the flow of the wind is shielded in a state where the outlet is shielded.

Further, the center blade 10a located at the center 8a of the outlet is connected to the pedestal 16a at the center of the outlet.
Even if the outlet 8 is largely shielded and the air flow is concentrated at the center of the outlet by holding the outlet on the upper side, the load on the left and right blades 10b is unlikely to be large, and the converged flow is reduced to the center of the outlet. When blowing out from the portion 8a, it is possible to make it difficult to generate a entangled flow that occurs at the boundary between the both end portions (shielding portion) 8b of the outlet and the central portion (outlet portion) 8a of the outlet.

Further, in the steady state, the pedestals 16b at both ends of the outlet are rotated in the opposite direction as in Embodiment 5, and the positions of the left and right blades 10b at both ends of the outlet are set in the longitudinal direction of the outlet. The left and right blades 10b at both ends of the outlet are close to the blower fan 4 and the load on the left and right blades 10b is reduced. Can be prevented from increasing.

[0076]

As described above, according to the first aspect of the present invention, at least one or more blades located at the end of the air outlet among a plurality of blades for changing the wind direction in the horizontal direction are provided .
The blade is a blade that is inclined in the longitudinal direction of the outlet, and this inclination is
Rotate the inclined blades to block a part of the outlet
By shielding , the collision flow at the central portion where the flow is concentrated at the outlet, and the entrainment flow generated at the boundary between both ends (shielding portion) of the outlet and the center portion (outlet portion) of the outlet can be reduced. , The flow can be formed smoothly and at a high wind speed. In addition, noise is reduced because the turbulence of the flow is reduced, and there is no sharp increase in noise even if the opening ratio of the outlet is reduced and the wind speed is increased.

Further, according to the second aspect of the present invention, by making the shape of the blade according to the first aspect a shape without corner portions of the blade, it is possible to prevent the blade from hitting the outlet during rotation.

According to the third aspect of the present invention, by changing the shape of the blade according to the first aspect according to the position of the blade in the outlet, the portion of the outlet that is desired to be shielded during rotation can be shielded without gaps. .

According to the fourth aspect of the present invention, the left and right blades at both ends of the outlet are rotated by arranging the left and right blades located at both ends of the outlet in an inverted C shape when viewed in plan cross section. To shield the outlet
The wind flows linearly toward the center of the outlet, and the outlet flow can be efficiently converged to the center. In addition, the flow can easily reach the part where the person is present or a part of the floor surface more intensively, and the comfort of the living space can be improved.

Further, according to the fifth aspect of the present invention, several left and right blades located at both ends of the outlet are placed on the pedestal, and the left and right blades on the pedestal rotate in the direction of blocking the wind, and the pedestal itself is moved. By rotating in a direction away from the blower fan, it is possible to suppress the blown noise of the blower fan generated when the flow of the wind is blocked, and to reduce noise. In the steady state, the pedestal can be rotated to return the positions of the left and right blades at both ends of the outlet to the original position, so that the left and right blades are located closer to the blower fan, and the load on the left and right blades increases. This can be prevented.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of an indoor unit of an air conditioner according to Embodiment 1 of the present invention.

FIG. 2 is a front view of the indoor unit of FIG. 1;

FIG. 3 is a front view of the outlet of FIG. 1;

FIG. 4 is a cross-sectional plan view of the outlet of FIG.

FIG. 5 is a diagram showing the structure of an indoor unit of an air conditioner according to Embodiment 2 of the present invention and the operation state thereof.

FIG. 6 is a diagram illustrating the structure of an indoor unit of an air conditioner and an operation state thereof according to Embodiment 3 of the present invention.

FIG. 7 is a cross-sectional plan view showing an operation state of an outlet of an indoor unit of an air conditioner according to Embodiment 4 of the present invention.

FIG. 8 is a cross-sectional plan view showing an operation state of an outlet of an indoor unit of an air conditioner according to Embodiment 5 of the present invention.

FIG. 9 is a cross-sectional plan view showing an operation state of an outlet of an indoor unit of an air conditioner according to Embodiment 6 of the present invention.

FIG. 10 is a partial vertical sectional view of an indoor unit of a conventional air conditioner.

11 is a cross-sectional plan view of the outlet of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front cover 2 Suction port 3 Heat exchanger 4 Blow fan 5 Rear guide 6 Stabilizer 7 Blow path 8 Outlet 9 Upper and lower blades 10 Blade 10a Central blade 10b Left and right blades 10c Left and right blades (inclined) 11 Main frame 12 Air filter 13 Connecting beam 14 Rotary shaft 15 Throat part 16a Pedestal at center part 16b Pedestal at both end parts

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Tokura 1006 Kazuma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-9-145140 (JP, A) JP-A-6-145 229616 (JP, A) JP-A-10-9658 (JP, A) JP-A-3-67950 (JP, A) JP-A-5-71796 (JP, A) JP-A-10-253143 (JP, A) Japanese Utility Model Showa 59-55348 (JP, U) Japanese Utility Model Showa 50-150936 (JP, U) Japanese Utility Model Showa 5-64647 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 1/00 401

Claims (6)

(57) [Claims] 1. A blower fan comprising a main body frame, a plurality of blades each having a fixed length arranged in a columnar shape, and an impeller alone in a rotational direction, and a fan positioned close to and opposed to the blower fan. Stabilizer, a rear guider that forms an air passage with the stabilizer, a heat exchanger, and upper and lower blades that vertically change the wind direction at the air outlet of the air passage as wind direction control means, and a plurality of horizontally changing wind directions. A blade, and at least one or more blades located at an end of a blowout port among the blades are blown out
The blades are inclined in the longitudinal direction of the mouth, and the inclined blades are
An indoor unit for an air conditioner, wherein the indoor unit is configured to be turned upside down to block a part of an outlet of a sending path . 2. The indoor unit of an air conditioner according to claim 1, wherein the blade has a shape in which a corner portion of the blade is eliminated so as not to hit an outlet during rotation. 3. The indoor unit of an air conditioner according to claim 1, wherein the blade has a shape changed according to the position of the blade. 4. The air conditioner room according to claim 1, wherein some of the blades including the inclined blades and located at both ends of the outlet are arranged in an inverted C shape. unit. 5. A plurality of blades including the inclined blades and located at both end portions of the outlet are held on a pedestal, and the blades rotate in a direction of shutting off the wind, and the pedestal itself is driven by a blower fan. The indoor unit for an air conditioner according to claim 1, wherein the indoor unit rotates in a direction away from the room. 6. The air according to claim 5, wherein several wings located at the central portion of the outlet are held on a pedestal, and the pedestal itself is rotated to form an inverted C-shape. The indoor unit of the harmonizer.