JP2589691B2 - Wind direction changing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a wind direction changing device in an air conditioner.

2. Description of the Related Art Recently, an air conditioner of a ceiling-embedded type has become a two-way blowout, a three-way blowout, a four-way blowout and a multidirectional blowout in accordance with the shape of a room, giving a user a choice. It is getting.

Hereinafter, an example of the above-described conventional wind direction changing device for an air conditioner will be described with reference to the drawings.

4 is a perspective view of an air conditioner including a conventional wind direction changing device, FIG. 5 is a vertical sectional view taken along line VV 'in FIG. 4, and FIG. 6 is a line VI-VI' in FIG. FIG.

4 to 6, reference numeral 1 denotes a cabinet, and 2 denotes an outlet, which are located at four locations on the outer periphery of the lower surface of the cabinet 1.

Reference numeral 3 denotes a single suction port, which is located at the center of the lower surface of the cabinet 1. Reference numeral 4 denotes a centrifugal fan, which is built in the center of the cabinet 1. A heat exchanger 5 has a circular shape and is placed around the outer periphery of the centrifugal fan 4. Reference numeral 6 denotes a wind path, which is a space extending from the heat exchanger 5 to the outlet 2. Reference numeral 7 denotes a blowout louver, which is pivotally supported by the cabinet 1 in the long side direction.

The operation of the wind direction device configured as described above will be described below.

First, when the centrifugal fan 4 is operated, air is sucked from the suction port 3 and blown out to the heat exchanger 5. Heat exchanger 5
The air that has passed passes through the air passage 6 and is guided to the outlet 2.
The wind direction is adjusted by the blowing louver 7 and the air is blown out.

Problems to be Solved by the Invention However, in the above configuration, since the air outlets are dispersed at four locations, the air volume per air outlet is reduced, and the wind speed is also low. For this reason, the reaching distance to the airflow floor at the time of heating has been short. If the total air volume is increased and the wind speed is increased, the size of the fan and the torque of the fan motor are increased, which contradicts resource saving, energy saving, and low noise. Further, when the outlet is reduced to increase the wind speed during the four-way blowing, the total outlet area becomes too small during the two-way blowing (the other two directions are sealed at this time), and a large pressure loss occurs. This has the disadvantage that the total air flow decreases and noise increases.

As described above, there has been a problem that the reaching distance to the floor surface during heating is insufficient, the temperature distribution becomes uneven, and a comfortable space cannot be obtained.

The present invention has been made in view of the above problems,
It is an object of the present invention to provide a wind direction changing device capable of extending a reaching distance to a floor surface even in a directional blow, realizing a comfortable air-conditioned space without contradicting resource saving, energy saving and low noise.

Means for Solving the Problems To achieve the above object, the wind direction changing device of the present invention
A plurality of air outlets, an air path connected to the upstream side of the air outlet, and a lower portion of the air outlet louver pivotally supported in the air outlet by a rotation axis in a long side direction; A blow-out louver that is pivotally supported and can be independently rotated with respect to the blow-out louver lower portion. The blow-out louver upper end is provided so that the opposite pivot-side end of the blow-out louver upper portion can approach the air path wall surface. is there.

In the wind direction changing device according to the present invention, in the four-way blowing in which the wind speed from each of the outlets is lower than that in the two-way blowing, the upper end of the blower louver on the opposite pivot side is brought close to the wind path wall surface to reduce the blowout area. By closing a part, the wind speed from the open part of the remaining outlet can be increased to extend the reach of the wind, and at the same time, the direction of the wind with the increased wind speed can be adjusted by adjusting the angle of the lower part of the outlet louver Therefore, the wind speed adjustment and the wind direction adjustment can be separately performed, and the downward blow airflow can reach the floor surface during heating.

Next, at the time of two-way blowing, it is returned to a single plate state like a conventional blowing louver and used.

As a result, the blowout area per unit becomes about twice that in the four directions, the pressure loss can be reduced, and the increase in noise can be prevented.

Embodiment Hereinafter, a blower according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a blow-out louver portion of a wind direction changing device, FIG.
The figure is a vertical sectional view showing the four-way blowing of the wind direction changing device, and FIG. 3 is the vertical sectional view showing the two-way blowing of the wind direction changing device. 1 to 3, 8 is a cabinet, 9
Are outlets located at four locations on the outer periphery of the lower surface of the cabinet 8. Reference numeral 10 denotes a heat exchanger which has a circular shape and is placed around the outer periphery of a centrifugal fan (not shown). Reference numeral 11 denotes an air passage, which is a space downstream of the heat exchanger 10 and reaching the outlet 9. Reference numeral 12 denotes an outlet louver, which has an outlet louver lower portion 12a and an outlet louver upper portion 12b. The blow-out louver lower portion 12a has a long-side rotating shaft 13 at an upper end portion and is pivotally supported by the cabinet 8.

The louver upper portion 12b has a lower end pivotally supported by the rotation shaft 13 side, can rotate freely independently of the rotation of the blow-out louver lower portion 12a, and has the other long side opposite to the heat exchanger 10 of the air passage 11. It can be in close contact with the wall surface. 14 is a louver fixing projection, which is a concave elastic body,
It is located on the wall surface of the heat exchanger 10 on the side of 11, and is held when the upper part 12b of the blowout louver is lowered.

The operation of the wind direction changing device configured as described above will be described below with reference to FIGS.

First, starting from the four-way blowout, as shown in FIG. 2, the blower louver upper part 12b is manually fallen until it comes into close contact with the wall surface of the air passage 11 on the heat exchanger 10 side, and is held by the louver fixing projections 14. I have. At this time, the air blown out from the centrifugal fan (not shown) passes through the heat exchanger 10, passes through the air passage 11, and is blown out from the blow-out port 9. Is closed, the pressure in the air passage 11 is increased, the blowout wind speed is increased, and the reach of the blowout airflow at the time of heating is extended to reach the floor surface. Also, the blow-out louver lower portion 12a is rotatable even when the blow-out louver upper portion 12b is fixed, so that the wind direction can be adjusted.

Next, a description will be given of two-way blowing. As shown in FIG. 3, the blower louver upper portion 12b is released from the louver fixing projection 14 by hand, and is rotated so as to be aligned with the blower louver lower portion 12a. Unnecessary two-way air outlets 9 among the four-way air outlets 9 are sealed, and the remaining air outlets 9 are used for two-way air blowing. Is increased, the blowing air speed from the outlet 9 becomes substantially the same as the blowing speed in the four-direction blowing, the reaching distance of the blowing air flow at the time of heating is increased,
It will reach the floor sufficiently. The total air volume at this time is almost equal to that at the time of blowing in four directions, and there is no increase in noise.

As described above, according to the present embodiment, a plurality of outlets 9
An air passage 11 connected to the upstream side of the outlet 9 and a lower part 12a of the outlet louver pivotally supported in the outlet 9 by a rotation shaft 13 in a long side direction.
And the lower part 12 of the blowout louver
a louver 12 comprising an upper louver 12b which can be independently rotated with respect to a, so that the opposite pivotal end of the upper louver 12b can be close to the wall surface of the air passage 11. At the time of four-way blowing, in which the wind speed from each outlet is lower than at the time of directional blowing, a part of the area of the outlet 9 is closed by bringing the end of the upper part 12b of the blower louver opposite to the wall of the air passage 11 close to the wall surface. Thereby, the wind speed from the open portion of the remaining outlet 9 can be increased to extend the reach of the wind, and at the same time,
Since the wind direction of the wind with increased wind speed can be adjusted by adjusting the angle of the lower portion 12a of the blowout louver, the wind speed adjustment and the wind direction adjustment can be performed separately, and the downward blow airflow can reach the floor surface during heating. . In addition, at the time of two-way blowing, the lower part 12a of the blowing louver and the upper part 12b of the blowing louver are integrated so as to be in a straight line so as to secure the entire air volume and extend the reaching distance to the floor without increasing noise.
Comfortable air conditioning with a uniform temperature distribution can be realized.

Effect of the Invention As described above, the present invention provides a plurality of outlets, an air path connected to the upstream side of the outlet, and an outlet pivotally supported in the outlet by a rotation axis in a long side direction. A louver lower portion, and a blowout louver formed of a blower louver upper portion which is also pivotally supported by the rotation shaft and is independently rotatable with respect to the blower louver lower portion. Can be approached to the air passage wall surface, so that a part of the outlet opening area is closed by bringing the opposite pivot end of the upper part of the air outlet louver close to the air passage wall surface, thereby opening the remaining air outlet. To increase the wind speed by increasing the wind speed from
Since the wind direction of the wind with increased wind speed can be adjusted by adjusting the angle of the lower part of the blowout louver, the wind speed adjustment and the wind direction adjustment can be performed separately, and the wind speed from each outlet decreases as compared with the case of two-way blowing4. Even during directional blowing, the downward blowing airflow during heating can reach the floor surface. Also, 2
At the time of directional blowing, the lower part of the blower louver and the upper part of the blower louver are integrated so as to be in a straight line, so that the whole air volume can be secured and the reach to the floor can be extended without increasing noise. Comfortable air conditioning can be realized.

[Brief description of the drawings]

FIG. 1 is a perspective view of a blow-out louver portion of a wind direction changing device according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view showing the above-described wind direction changing device when blowing in four directions, and FIG. FIG. 4 is a perspective view of an air conditioner including a conventional wind direction changing device, FIG. 5 is a horizontal sectional view taken along line VV ′ of FIG. 4, and FIG. 6 is a view of FIG. FIG. 6 is a vertical sectional view taken along line VI-VI ′. 9 ... Outlet, 11 ... Airway, 12 ... Outlet louver, 12a ...
… Lower louver, 12b… upper louver.

Claims (1)

(57) [Claims] A plurality of air outlets, an air passage connected to an upstream side of the air outlet, and a lower portion of the air outlet louver pivotally supported in the air outlet by a rotation axis in a long side direction. A blowout louver that is pivotally supported by a rotating shaft and that can be independently rotated with respect to the blowout louver lower portion, and an anti-pivot side end of the blower louver upper portion is close to the wind path wall surface. A wind direction changing device that can be used.