JPS6218913Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an indoor air outlet unit for air conditioning.
More specifically, the present invention relates to an indoor air-conditioning outlet unit useful for use in a variable air volume system (VAV).

Conventionally, when performing air conditioning, adjustment of the indoor air outlet amount was done by using a large number of blades B at the air outlet A, as shown in Figure 1.
...B, and change the direction of this blade B as shown by the chain line, or, in the case of a variable air volume system, install a damper unit in the indoor air supply branch pipe C, as shown in Figure 2. It is common practice to provide a unit D and operate a damper D' within this unit D to adjust the air volume from the outlet A.

However, when adjusting the airflow amount with blades B...B, the airflow direction also changes at the same time as the airflow amount is adjusted, so there is a drawback that it is not possible to select an appropriate airflow direction during heating or cooling. When adjusting the air volume with unit D, the above-mentioned disadvantages do not occur, but on the other hand, a damper unit D must be provided for each branch pipe C, which increases the equipment size and requires a large amount of installation space. I had a lot of flaws.

In view of the above-mentioned drawbacks, this invention was made with the aim of providing an indoor air-conditioning outlet unit that requires a small installation space, is easy to operate, and allows for arbitrary selection of both the airflow amount and airflow direction. A rotating body having a semi-cylindrical shape having a diameter and axial length capable of completely closing the opening surface is pivotally supported on the opening surface of the duct whose opening end surface has a rectangular shape, and It is characterized in that the opening surface is provided with a hood body that expands like a skirt toward the opening direction.

Next, this invention will be explained using examples.

FIG. 3 is a side sectional view of an embodiment of this invention, and FIG. 4 is a sectional view taken along the line -- in FIG.

The air conditioning indoor air outlet unit 1 of this invention has an opening end face 11 formed on the opening face 11A of the duct 12 having a rectangular shape as shown in FIG.
A rotating body 13 having a semi-cylindrical shape having a diameter d and an axial length L capable of fully closing the duct 1A is pivotally supported, and a hood body 14 is provided on the opening surface 11A of the duct 12 and extends like a skirt toward the opening direction. is set up and configured.

The shape of the hood body 14 may be bilaterally symmetrical as shown in FIG. Rotating circle 13R
It is even more preferable to arrange the wind direction guide plate 15 so as to face the wind direction guide plate 15.

Further, although the above embodiment shows the case where the rotating body 13 has a single axis, it may have a two-axis configuration as shown in FIG.

In this case, two rotating bodies 13 arranged in parallel
The duct opening surface is closed by A and 13B.

Next, the operation of each embodiment will be explained.

The rotating bodies 13, 13A, and 13B pivotally supported by the opening surface 11A of the duct 12 are all rotated by the opening surface 11A.
Since it has a semi-cylindrical shape with a diameter d and an axial length L that can fully close the rotating body 13, when it is rotated slightly from the fully closed position, as shown in Fig. 7 A and B, the rotating body 13, A gap is created between the straight plane portion 131 of 13A, 13B and the inner surface of the duct 12 depending on the rotation angle, and air flows out through this gap.

At this time, the circumferential outer peripheral surfaces 132 of the rotating bodies 13, 13A, and 13B maintain the same contact state with the inner surface of the duct 12 regardless of the rotation angle, so the blowout flow only flows in the direction shown by the arrow in the figure. Therefore, it is possible to adjust the air volume while keeping the blowing direction constant.

In addition, as shown in FIG. 8 A and B, the rotating body 13,
When 13A and 13B are turned half a turn or more, the blowing direction is different from that described above, and the blowing amount can be adjusted by rotating the rotating bodies 13, 13A and 13B in this state.

In the above description, the rotating body has two axes 13A, 13
In the case of B, it is desirable to be able to transmit rotation using gears so that these rotating bodies 13A and 13B rotate in opposite directions in relation to each other.

In addition, although the cross-sectional shape of the rotating bodies 13, 13A, and 13B is shown to be semi-cylindrical, the cross-section is not limited to this, and as shown in FIG. 9 and FIG. It can also be implemented in the same way as a shape.

This idea is structured as above, so
By rotating the rotating body, the air blowing amount and blowing direction can be adjusted arbitrarily using a single unit, eliminating the need for separate control systems for each system as in the past. Since it only needs to be installed as a unit, it has various practical effects, such as the installation space being greatly reduced.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of the conventional example, Figure 3 is a side sectional view of the embodiment of this invention, Figure 4 is a sectional view taken along the - line in Figure 3, and Figures 5 and 6 are other illustrations. FIGS. 7A and 7B and FIGS. 8A and 8B are operation explanatory views of the embodiment, and FIGS. 9 and 10 are sectional views of main parts of still other embodiments. 1... Indoor air outlet unit for air conditioning, 11... Opening end surface, 11A... Opening surface, 12... Duct, 1
3...Rotating body, 14...Hood body, d...Diameter,
L...Shaft length.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A semi-cylindrical rotating body having a diameter and axial length that can completely close the opening end surface of a duct with a rectangular opening end surface is attached to the opening surface of the duct. supported, and
An indoor air outlet unit for air conditioning, characterized in that the opening surface of the duct is provided with a hood body that expands like a skirt toward the opening direction. (2) The air-conditioning indoor air outlet unit according to claim 1, wherein the semi-cylindrical rotating body is arranged in two axes in parallel.