JPH0442668Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an air conditioning outlet, which is attached to a ceiling or the like and has a linear outlet, which is called a slot outlet.

[Conventional technology]

In order to supply air from an air conditioner through a ventilation duct into a room where air conditioning is to be performed, slotted outlets are traditionally installed in ceilings and have linear outlets with a large aspect ratio. It is often used as.

The slot air outlet is provided with a sound deadening box in the shape of, for example, a rectangular parallelepiped container to reduce the noise generated by the air flow within the air duct, and the air outlet is provided at the bottom of the sound deadening box.
The configuration near this outlet is shown in FIGS. 5 and 6. In the vicinity of the linear air outlet 2 formed on the lower surface of the sound deadening box 1 and extending in the direction perpendicular to the plane of the paper in FIGS. A blow direction control blade 3 is provided which is mounted so as to be angularly displaceable. 4 is the ceiling.

In the state shown in FIG. 5 in which the blowing direction control blade 3 is approximately parallel to the inner wall surface of the muffling box 1, the air flowing from the blower duct (not shown) through the muffling box 1 flows approximately as indicated by reference numeral a1. It is blown out directly below. On the other hand, in the state shown in FIG. 6, in which the blowing direction control blade 3 is inclined with respect to the inner wall surface of the sound deadening box 1, the air from the blower duct is approximately directed toward the ceiling 4 as indicated by reference numeral a2. Blows out in parallel directions.

[The problem that the idea attempts to solve]

However, in the above configuration, the blowing width is different between the state shown in FIG. 5 in which air is blown vertically downward and the state shown in FIG. 6 in which air is blown in a substantially horizontal direction. Because of the difference, the blowing wind speed changes, which changes the reach of the wind, making it impossible to generate the desired airflow in the room where air conditioning should be performed, and as a result, air conditioning is not performed properly. There is a fear.

The purpose of this invention is to provide an air conditioning outlet that allows good air conditioning.

[Means to solve the problem]

The air conditioning outlet of this invention has a linear outlet provided at the bottom of a box-shaped main body, and air from the main body is supplied toward the outlet, and the air is blown out from the outlet. The conditioning air outlet includes a pair of restricting means disposed on both side walls of the main body near the air outlet and protruding in the width direction of the air outlet to narrow the air flow path; is provided rotatably around a rotation axis extending along the longitudinal direction of the air outlet on the upstream side of the throttle means in the air flow direction within a plane that vertically bisects the air outlet; a plate-shaped blowout direction control blade extending along the rotational axis to change the direction of the airflow and blow out from the blowout port, each corner of the blowout direction control blade extending from one throttle means to the other throttle means; At the displacement position, the sum of the gaps between the blowing direction control blade and the pair of throttle means is approximately constant.

[Effect]

According to the configuration of this invention, the air flow path near the linear outlet is narrowed in its width direction by a pair of throttling means, and the air flow path is narrowed in the width direction by a pair of throttling means. The direction of air blowing is changed by the control blade. The blowout direction control blade is configured to be angularly displaced around a rotational axis that exists within a plane that bisects the blowout port into two equal parts along the longitudinal direction of the blowout direction control blade, and the blowout direction control blade and the pair of throttle means are The sum of the gaps therebetween is approximately constant at any angular displacement position of the blow direction control blade.

As a result, the static pressure loss at the blowout port remains constant at any angular displacement position of the blowout direction control blade, so no matter which direction air is blown out from the main body, the blowout speed is kept almost constant and the reaching distance is almost uniform. As a result, it becomes possible to generate a desired airflow in a room to be air-conditioned, and to achieve good air conditioning in the room.

〔Example〕

FIG. 2 is a perspective view showing the overall configuration of an air conditioning outlet according to an embodiment of this invention. This air conditioning outlet has a linear outlet 12 provided at the bottom of a sound deadening box 11, which is a main body forming a duct connection port 10 connected to a blower duct that blows air from an air conditioner. be.

FIG. 1 is a sectional view taken along a plane intersecting the longitudinal direction of the air outlet 12, and shows the configuration near the air outlet 12 in an enlarged manner. Silence box 1
A pair of constricted portions 15 and 16 are provided in the vicinity of one air outlet 12, which are formed by making both side walls 13 and 14 of the sound deadening box 1 project inward, respectively. These constricting portions 15 and 16 are formed uniformly along the longitudinal direction of the air outlet 12, and the width of the air flow path from the silencing box 11 to the air outlet 12 is
It has the function of narrowing down the width from Wa to the width Wb.

Near the air outlet 12, the pair of narrowing portions 15,
A blowout direction control blade 1 is integrally provided with a rotating shaft 17 disposed upstream of the airflow direction control blade 16 in the air flow direction.
8 are arranged. The rotating shaft 17 is connected to the air outlet 12
The air outlet 12 extends along the longitudinal direction of the air outlet 12 within a plane that vertically bisects the air outlet 12 into two equal parts along the longitudinal direction. The blowout direction control blade 18 is formed of a plate-shaped body extending along the extending direction of the rotating shaft 17, and has a substantially wedge-shaped cross section perpendicular to its longitudinal direction. 19 is the ceiling.

The dimensions and arrangement of the constricted parts 15 and 16 and the blowing direction control blade 18 are determined by the rotational axis A of the rotating shaft 17, the respective edges B and C of the constricted parts 15 and 16, and the lower side edge D of the blowing direction controlling blade 18. The relationship between the mutual distances AB, AC, and AD is chosen so that AD≒AB=AC (1). Further, the shape of the blowing direction control blade 18 is determined so that the distance AE between the upper side edge E of the blowing direction controlling blade 18 and the axis of rotation A satisfies AE<Wb (2).

Further, in this embodiment, the aperture portion 15 is formed to have a triangular wave-like cross section, but the angle α between the upper plate portion 15a and the horizontal direction is, for example, about 30 degrees, and the lower side plate-like part 15
The angle β between b and the horizontal direction is, for example, about 15 to 45 degrees. The same applies to the aperture section 16.

By selecting the dimensions and shapes of each part as described above, when the blowing direction control blade 18 is angularly displaced around the rotational axis A by rotating the rotating shaft 17 with, for example, a motor (not shown), the blowing direction At each angular displacement position where the lower side edge D of the control blade 18 extends from the edge B of the throttle part 15 to the edge C of the throttle part 16, the gaps W1 and W2 between the blow-out direction control blade 18 and the throttle parts 15 and 16 The sum of can be kept almost constant.

That is, the gaps W1 and W2 when the air blowing direction control blade 18 is directed vertically downward as shown in FIG.
(W1+W2), and as shown in FIG. 4, by angularly displacing the blowing direction control blade 18 so that the edge D is located near the edge B of the constriction part 15, the air is drawn at reference numeral S2. Gap when blowing out substantially parallel to the ceiling 19 as shown
It is almost equal to W2′.

As a result, the static pressure loss at the outlet 12 is approximately the same in both the state shown in FIG. 3 and the state shown in FIG. . In this way, the blowing wind speed can be kept almost constant regardless of the angular displacement position of the blowing direction control blade 18, so the reaching distance of the blown air can be kept constant regardless of the blowing direction. As a result, the airflow in the room to be air-conditioned can be easily brought into a desired state, and the air-conditioning can be performed in a much better manner.

Further, even when the blowing direction is changed moment by moment by rotating the rotary shaft 17 with a motor or the like and angularly displacing the blowing direction control blade 18, the static pressure loss at the blowing outlet 12 does not change. Since the load on the blower that sends air from the conditioner to the blower duct is approximately constant, the blower can be operated stably.

In the embodiment described above, the side wall 1 of the sound deadening box 11
By deforming parts 3 and 14, the aperture part 15,
For example, the first
Other rod-shaped bodies or the like having a substantially triangular cross-section and uniformity in the longitudinal direction of the air outlet 12 may be attached to the locations of the throttle portions 15 and 16 shown in the figure.

[Effect of idea]

According to the air conditioning outlet of this invention, the static pressure loss at the outlet is constant at any angular displacement position of the outlet direction control blade, so the outlet speed is By keeping the distance almost constant, the distance traveled can be made almost uniform. This makes it possible to generate a desired air flow in the room to be air-conditioned, thereby achieving good air conditioning in the room.

[Brief explanation of drawings]

Fig. 1 is an enlarged sectional view showing a part of the structure of an air conditioning outlet according to an embodiment of this invention, Fig. 2 is a perspective view showing the overall structure, and Figs. 3 and 4 show the operation. 5 and 6 are cross-sectional views for explaining the
The figure is a sectional view showing a conventional technique. DESCRIPTION OF SYMBOLS 11... Sound deadening box (main body), 12... Air outlet, 13, 14... Side wall, 15, 16... Throttle part, 18... Air blowing direction control blade.

Claims (1)

[Claims for Utility Model Registration] An air conditioner in which a linear outlet is provided at the bottom of a box-shaped main body, and air from the main body is supplied toward the outlet and blown out from the outlet. At the air outlet, a pair of throttling means are disposed on both side walls of the main body near the air outlet and protrude in the width direction of the air outlet to narrow the air flow path; is provided rotatably around a rotation axis extending along the longitudinal direction of the air outlet on the upstream side of the throttle means in the air flow direction within a plane that bisects the air outlet, and directs the air from the main body in one direction. and a plate-shaped blowout direction control blade extending along the rotational axis to cause air to flow from the blowout port while changing the blowout direction, and each angular displacement position of the blowout direction control blade from one throttle means to the other throttle means. An air-conditioning outlet, wherein the sum of the gaps between the blow-out direction control blade and the pair of throttle means is approximately constant.