JPS5926863B2 - Air outlet with variable reach in any direction - Google Patents

Description

[Detailed Description of the Invention] The present invention is a variable reach type system that can arbitrarily adjust the direction and speed of blown air according to changes in the required air-conditioned space, such as the spread shape of a living space or a specific work area. This relates to an air outlet.

For example, if you want to blow out conditioned air (horizontal flow) from the air outlet A installed in a corner or wall of the planar space aXb in Figures 1 and 2 to air condition the entire area aXb, the distance from the air outlet Since the distance varies depending on the direction, it is necessary to change the reach of the air flow depending on the shape of the space.

In such cases, a conventional method has been adopted in which a number of independent air outlets each having a fixed reach are combined to air condition the entire area, and this method can also achieve the intended purpose.

However, when the aXb space fluctuates or the working area changes, it cannot follow the changes, and it has the drawback of requiring several sets of air outlets.

The present invention provides an air outlet that can change the air blowing speed in any direction with a single air outlet, and therefore can arbitrarily adjust its reach in accordance with changes in the spatial shape and work area. , the spread angle θ corresponding to the spread of the living space
Two plates having an arcuate outer circumference are connected to the ventilation duct at the center thereof, and a plurality of partition plates extending in the radial direction are slidably inserted in the gap between the two plates, The present invention is characterized in that a desired blowing velocity can be obtained in any direction of the living space by adjusting the position of the partition plate.

To explain specifically according to the embodiments in the drawings, FIGS. 3 and 4
5 and 5 show a wall installation state, a plan sectional view, and a side view of the air outlet of the present invention, in which the spread angle θ is 180°. It has a structure in which a plurality of partition plates 4 extending in the radial direction are slidably interposed (described later) in the gap between the upper plate 1 and the lower plate 2.

That is, a plurality of fan-shaped air outlets are formed adjacent to the semi-arc shaped opening 5 (FIG. 4) of the air duct 3.

Now, let the air intake side cross-sectional area of each fan-shaped outlet partitioned by the partition plate 4 be R,, R2, R3...Rn, and the air blow-out side cross-sectional area be Sl, S2...Rn. S3...S
If n, the speed of the air blown out from each fan-shaped outlet is R
is proportional to S and inversely proportional to S.

Therefore, the air outlet side of the partition plate 4 is fixed and the 5l-82-
...-8n, and by sliding the air intake side of the partition plate 4, the blowing speed from each fan-shaped outlet can be changed arbitrarily even after the outlet is installed, and on the other hand, R1-R2-...
- The air blowing speed can be changed in the same way by sliding the air blowing side of the partition plate 4 as Rn.

Most preferably, if both the air intake side and the air outlet side of the partition plate 4 are slidable so that R and S are changed to opposite sizes, the amount of adjustment of the blowing speed can be made very large. can.

6 and 7 show the sliding means of the partition plate 4, in which bolts fixed to the partition plate 4 are inserted into grooves 6 opened in an arc shape in the upper plate 1 and/or the lower plate 2. The partition plate 4 can be adjusted as desired by passing the bolts 7 through the bolts 7 and screwing them into thumbscrews 8 from the outside of the upper plate 1 and/or the lower plate 2.

At this time, in order to prevent air leakage from the groove 6, it is preferable to interpose a shield plate 9 having an area larger than the opening area of the groove 6 and tighten the thumbscrew 8.

In Fig. 8, thick elastic rubber plates 9 are fixed to the upper and lower edges of the partition plate 4, and the total height of the partition plate 4 and the rubber plate 9 is slightly larger than the gap between the upper and lower plates. , shows an example in which the partition plate 4 is fixed at an arbitrary position using only frictional force.

An example of the results obtained by measuring the actual state of the blowing speed using the blowing outlet of the present invention configured as described above is as follows.
It has a spread angle of θ-1800 as shown in Figure 4, and a radius γ
-300 mm, the gap h between the upper and lower plates is 30 mm or 50 mm, this is formed into 6 fan-shaped air outlets by 5 partition plates 4, and the air outlet side of the partition plate is fixed so that S 1 = S 2
-...-86, with the air outlet area kept constant, slide the air intake side of the partition plate to change R1-R6,
The relationship between the ratio of R and the blowing speed was investigated.

The results are shown in FIG. However, the horizontal axis R/R in Figure 9
max is the ratio to the maximum value Rmax among R1-R6, Umax is the blowing speed to Rmax, and U is R
is the blowing speed.

Each measured value 1 to 13 is a value for the blowout outlet Reynolds number Re and the gap shown in Table 1.

From the results shown in FIG. 9, it is clear that the outlet velocity is proportional to R regardless of the size of the outlet Reynolds number and changes in h. According to the outlet of the present invention, by simply changing R, each fan-shaped outlet It was confirmed that it is possible to obtain any desired distance by changing the blowing speed from the outlet.

In addition, when changing S, or when changing R and S, the desired blowing speed can be obtained in the same way.

In the embodiment of the drawings, θ-180° is shown, but in the present invention, the same objective can be achieved even if θ is applied within a range of 30 to 360°.

[Brief explanation of the drawing]

1 and 2 are spatial plan cross-sectional views for explaining the principle of the present invention, FIG. 3 is an overall view showing an example of the usage state of the air outlet of the present invention, and FIG. 4 is a plane cross-sectional view of the air outlet of the present invention. Figure 5 is a side view of the air outlet in Figure 4, Figure 6 is a perspective view showing the adjustment means for the partition plate, Figure 7 is an exploded view of the adjustment means for the partition plate, and Figure 8 is for other adjustments. FIG. 9 is an overall view of the partition plate showing the means, and is a graph plotting an example of experimental results for the air outlet of the present invention. 1... Upper plate, 2... Lower plate, 3...
...Blower duct, 4...Partition plate.

Claims (1)

[Claims] 1. Two plates with an angle θ corresponding to the expanse of the living space and an arcuate outer circumference are connected to the ventilation duct at the center, and a plurality of partition plates extending in the radial direction are installed in the gap between these two plates. An air blowing outlet which is slidably interposed and has a variable reach in any direction, and is configured to obtain a desired blowing velocity in any direction of a living space by adjusting the position of this partition plate.