JPS6025703B2 - Intermittent air blowing method - Google Patents

Description

[Detailed description of the invention] The present invention relates to an intermittent air blowing method.

In general, if the indoor air temperature is maintained at 24 to 25 degrees Celsius during cooling, for example, there is no need for airflow to hit the occupants, and they feel comfortable in that state.However, due to recent demands for energy conservation,
When the indoor air temperature rises to 27-28 qo, airflow against the occupant is required for the occupant to feel comfortable.

However, if these airflows hit the occupant continuously,
On the contrary, there was a problem in that it caused discomfort.

The present invention has been made in order to harmonize the demand for energy saving with the demand for a sense of determination among residents.
By providing an intermittent air blowing method that intermittently supplies air in a 5o0 cone shape and vertically downward, the residual airflow from the air outlet provides a sense of comfort to occupants intermittently at regular intervals, while also saving energy. The basic purpose is to make a contribution.

Another object of the present invention is to widen or narrow the range of the blown airflow through intermittent control, thereby realizing air conditioning of a wide space.

Embodiments of the invention will now be described in detail with reference to the accompanying drawings. As shown in Figures 1 to 3, intermittent air outlet 1
is a cylindrical part 4 that spans a duct 3 arranged in the ceiling 2
A blowing cone 6 is provided in which a conical cone portion 5 opening toward the indoor side is integrally connected.

On the other hand, a fixed blow-off plate 9 is provided at the blow-off closing opening 7 of the cone portion 5, and the inner bent edge 8 of the outer periphery is iron-coupled with the fixed blow-off plate 9. Continuously formed peripheral entrances 10,..., 10 and peripheral closures 10,...
. . , 10 are provided with central entrances 11, .

On the inner surface of the fixed blow-off plate 9, the peripheral sekiguchi 10,...
・A spacer 12 made of foamed polyethylene is attached with openings 12a, . . . , 12a having a smaller diameter than the central entrances 11, . At an intermediate position, the legs 14, . . . , 14 of the X-shaped support fitting 13 are spot welded (indicated by an X mark).

) and fix it. The spacer 12 has a function of setting the ejection angle from the peripheral open row 0 to 45 to 60 degrees depending on the positional relationship with the airflow deflection section of the cone section 5. Between the supporting metal fitting 13 and the spacer 12, there is provided the central opening 11.・
A disk-shaped opening/closing plate 16 having opening rows 5, . . . , 15 corresponding to the opening rows 5, . , connect the rotary solenoid or synchronous motor 17 to screw 1.
8 and 18, and the output shaft 19 of the synchronous motor etc. 17 is iron-coupled with the two center bosses of the opening/closing plate 16, and is fixed with a set screw 21.

The synchronous motor etc. 17 preferably rotates at a low speed of about 1 to 4 RPM.

The support fitting 13 has a hook-shaped hook fitting 22.
, . . . , 22 are fixed by spot welding (indicated by an x mark J), and the cylindrical portion 4 of the above-mentioned blowing cone 6 is provided with a mounting for hooking the hooking fittings 22, . . . , 22. The metal fittings 23, . . . , 23 are fixed by spot welding.

The synchronous motor etc. 17 is connected to a power source via an ON-OFF switch.

If the intermittent air outlet 1 is configured as described above, the ceiling 2
A fixed blowout plate 9, a support fitting 13, an opening/closing plate 16, a synchronous motor etc. 17,
The unit incorporating the hook 22 is installed from the indoor side, and the hook 22 is hooked onto the mounting fitting 23 to be hung and supported, and the thinning is completed.

Next, when the synchronous motor etc. 17 is turned on by the ON-OFF switch, the opening/closing plate 16 rotates at a low speed, and when the opening □ 15 of the opening/closing plate 16 coincides with the central exit 11 of the standard air outlet plate 9, the opening/closing plate 16 rotates at a low speed. is fully opened and when the opening row 5 comes between the adjacent central closing openings 11, the central opening 11 is fully closed.

The effective area A of the peripheral closure 10 and the effective area A2 of the center entrance 11 are the same as the effective area A of the peripheral opening 10 and the effective area A2 of the central entrance 11 when the central opening 10
It is preferable to set the area ratio A2/A to 0.5 so that the airflow is blown out in a cone shape at an angle of 45 to 60 degrees. As shown schematically in FIG. 6, when the center entrance 11 is fully open, the conditioned air from the duct 3 is
Center opening □1 At the same time, the vertical airflow is blown out from the river as a vertical airflow, and at the same time, the vertical airflow is 45 to 60
The surrounding airflow, which should be blown out in a cone shape at an angle of 100°, is drawn together.

The so-called Coanda effect is exerted, correcting the downward blowout airflow as shown by the two-dot chain line a, and blowing out with the width of the vertical blowout airflow expanded so to speak, giving airflow to the occupants below the outlet 1 and making them feel comfortable. Makes you feel. On the other hand, when the center opening □ 1 1 gradually closes due to the rotation of the opening/closing plate 16 and enters the closed state, the conditioned air from the duct 3 is narrowed down from the peripheral opening □ 10 at an angle of 45 to 60 degrees as peripheral airflow. Due to the high wind speed, the air is blown out in a cone shape and diffused, providing airflow to the occupants around the lower part of the air outlet 1, giving them a feeling of comfort.

Here, the reason why the peripheral closing ports 10, 10 are disposed in a discontinuous state is that in a continuous film flow state, as in the conventional case, the blow-out jet from the peripheral entrance 10 has a humbling effect (coandalent) due to the closed air flow film itself. effect), set the jet airflow angle to 45o to 60o.
However, the desired blowout angle cannot be stably obtained because the airflow merges to form a vertical blowout airflow, or the airflow flows along the ceiling surface due to the formation of negative pressure with the ceiling, but it is not continuous. This is because by doing so, it becomes possible to eliminate the above-mentioned drawbacks and maintain the initial setting angle. The above embodiment had a structure in which the synchronous mode lever 17 and the hook 22 were fixed to the X-shaped support 13, but as shown in FIG. At the same time as attaching the eggplant motor etc. 17, an L-shaped mounting bracket 26 is spot welded to the inner surface of the cone portion 5 of the blowout cone 6, and the inwardly bent green 8 of the fixed blowout plate 9 is hung on the mounting bracket 26. It may also be a supporting and feeding structure.

With this structure, the mounting bracket 2 can be attached to the existing blowout cone 6.
Units such as the fixed blowing plate 9 can be assembled by simply spot welding the parts 6 and the like.

Furthermore, in each of the above embodiments, the conical outlet cone 6, the fan-shaped peripheral closure 10, and the central opening 11 were combined, but as shown in FIG.
', rectangular peripheral Sekiguchi 10', triangular central opening □1
1' combination structure may also be used. Furthermore, in each of the above embodiments, the opening/closing plate 16 is rotated at low speed by a synchronous motor or the like 17, but as shown in FIGS. is formed into a circular shape, and a disc-shaped opening/closing plate 16' for opening and closing the Hagi center closing opening 11'' from below is supported by a plunger 31 of a solenoid 30 installed in the cone 6, and the solenoid 30 is A timer or the like may be used to excite and demagnetize at a rate of about 4 to 1 power per minute, and the center opening 11 may be opened and closed up and down.

As is clear from the above description, the present invention is an air blowing method that intermittently combines the peripheral blowing airflow and the direct blowing airflow, so that the blowing airflow intermittently hits residents in a wide area. This makes it possible to provide a comfortable feeling of coolness, especially during energy-saving cooling.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an intermittent air outlet, Fig. 2 is a sectional view of Fig. 1, Fig. 3 is a plan view of Fig. 2 with the air outlet cone omitted, and Fig. 4 is an intermittent air outlet of the first modification. 5 is a bottom view of the intermittent air outlet of the second modification, FIG. 6 is a schematic diagram showing the state of the air flow as the opening/closing plate rotates, and FIG. 7a and FIG. 7b is a sectional view and a bottom view of the intermittent air outlet of the third modification. 1...Intermittent air outlet, 6...Blowout cone, 7...Blowout closing port, 8...Inner bent edge, 9...
...Fixed blow-off plate, 10...Peripheral opening, li...Center closing, 15...Blank opening, 16...Opening/closing plate, 17, 30...Sink . Eggplant motor, etc., 22... Hook fitting. Figure 2 4
Figure Rudder Figure 3 Figure 5 Figure C Ship Figure 7

[o]

Figure 7

[b]

Claims (1)

[Claims] 1. Continuously supplying a cone-shaped peripheral airflow from the ceiling side toward the indoor side, while intermittently supplying a vertical airflow from the ceiling side toward the indoor side at the center position of the peripheral airflow. An intermittent air blowing method characterized by: