JPH05569B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is provided at an outlet of an air conditioner, etc.
The present invention relates to a direction control device for deflecting and blowing a flow from an air source in an arbitrary direction.

Conventional configurations and their problems In air conditioners that perform cooling and heating, the airflow direction must be controlled downward during heating and horizontally during cooling in order to equalize the temperature distribution in the room being air conditioned. is desirable. Further, due to the installation position of the air conditioner, etc., it is desirable to deflect the light over a wide angle in the left and right directions.

Conventional examples for achieving this purpose are shown in Figures 1 and 2.
There is one shown in the figure. In the figure, 1a and 1b are guide walls (only two are shown in the figure, but there are many); 2 is a nozzle that blows out the flow;
3 is a deflection plate rotated by a shaft 4; Due to the flow guiding action of the deflection plate 4, the flow exiting from the nozzle is directed to the guide walls 1a, 1b (1 in Fig. 1).
a) and is deflected. When the deflection plate 4 is rotated, the guide wall to which the flow adheres changes, and the blowing direction changes. The above operation deflects the flow, but since the deflection plate 4 is installed in the flow path, it creates resistance to the flow and also has a shape that disturbs the streamlines of the flow, so it may not adhere to the wall surface. This has the disadvantage that it inevitably deteriorates the effect.

Purpose of the invention The present invention solves such conventional problems,
It is an object of the present invention to provide a flow direction control device that deflects the flow at a wide angle vertically and horizontally without causing air flow resistance and without disturbing the flow path.

Structure of the Invention To achieve this object, the present invention provides a nozzle that is provided at the outlet end of a flow path and has a restriction from the entire circumference with respect to the axis of the flow path, and a nozzle that surrounds the nozzle on the downstream side of the nozzle. a bias shielding plate provided on the upstream side of the nozzle and outside the nozzle to block a part of the flow toward the center of the flow path caused by the constriction; This constitutes a flow direction control device including a flow dispersion member that is provided upstream of the nozzle and disperses the flow to the outside.

With this configuration, the bias flow from other parts acts on the guide wall corresponding to the nozzle part where the bias flow is blocked by the nozzle throttle, and the flow blown out from the nozzle ends up adhering to the guide wall. . Further, by changing the gap between the bias shielding plate and the nozzle, the strength of the flow adhering to the guide wall changes. As a result, the flow can be blown out three-dimensionally in all directions according to the rotation and vertical movement of the bias shielding plate.
Further, in this case, the bias shielding plate is present on the upstream side of the nozzle and outside the nozzle, so it does not act as a resistance to the flow and does not disturb the flow. Therefore, it has the effect of completely adhering the flow to the guide wall without reducing the air volume and deflecting the flow over a wide angle. Furthermore, due to the action of the flow dispersion member, the flow upstream of the nozzle is dispersed to the outside of the flow path, promoting the throttling effect and expanding the deflection angle. is rectified, and the deflection characteristics are less likely to deteriorate.

DESCRIPTION OF EMBODIMENTS The present invention will be described below with reference to FIGS. 3 to 9 of one embodiment. In the figure, 5 is a channel for guiding the flow sent from the blower, 5a is the axis of the channel, and 6 is a flow dispersion member that disperses the flow outward with respect to the axis 5a of the channel (a perspective view is shown in FIG. 4). ), 7 is a circular nozzle having a throttle 8 from the entire circumference with respect to the axis 5a of the flow path, 9 is a guide wall formed to surround the nozzle on the downstream side of the nozzle 7, As a starting point, the shape is gradually expanded. Nozzle 7
A bias shielding plate 10 (a perspective view of which is shown in FIG. 5) is provided on the upstream side of the diaphragm 8 for blocking the bias flow generated by the diaphragm 8. This rotates around a rotating shaft 11 (in this embodiment, the same as the axis 5a of the flow path), is located outside the nozzle near the outlet of the nozzle 7, and is in contact with the throttle 8.
This rotating shaft 11 is supported by a support member 12 that protrudes from the outer wall of the flow path 5 .

In the above configuration, the operation will be explained using FIGS. 6 to 9. First, a case where the shielding plate 10 and the nozzle 8 are in close contact with each other as shown in FIG. 6 will be described. In this case, the flow F _I that has entered the channel becomes an outward flow F _O due to the action of the flow dispersion member 6 .
As a result, the flow collides with the wall and the flow along this
_FW , and the action of the throttle 8 results in a bias flow F _B directed toward the axis 5a of the flow path. Here, a bias flow F _B occurs on the left side of the figure, but
On the right side, the bias flow is blocked by the effect of the bias shielding plate 10. The flow F _A exiting the nozzle is therefore directed towards the right guide wall by the bias flow F _B from the left side. As a result, the flow F _A coming out of the nozzle interferes with the guide wall 9, flows along the guide wall 9 due to the Coanda effect, and is deflected over a wide angle without substantially reducing the air volume. The maximum deflection angle θ in this case can be arbitrarily set depending on the shape of the guide wall 9.

Next, as shown in FIG. 7, when the shielding plate 10 is moved to the left, the bias flow F _B on the left side is blocked, and the flow F _A coming out of the nozzle is tilted to the left side and flows at a wide angle along the left guide wall. deflect to the left. That is, as the shielding plate 10 rotates, the flow is deflected over a wide angle in the direction in which the shielding plate 10 exists. In addition, for all flows upstream of flow F _W ,
Since it is the same as the figure, the following is omitted.

Next, as shown in FIG. 8, the shielding plate 10 and the aperture 8
A case where a gap d is provided between the two will be explained.
In this case, a flow F _BL passing through the gap d occurs,
Due to this effect, the inclination angle of the flow F _A exiting the nozzle becomes smaller than in the case of FIG. 6. As a result, the degree of adhesion to the guide wall 9 also decreases, and the deflection angle θ becomes smaller than that in FIG. As this gap d is gradually enlarged, the deflection angle θ gradually becomes smaller, and finally the deflection angle θ becomes 0 as shown in FIG. That is, the deflection angle can be arbitrarily set by moving the shielding plate in the vertical direction.

Effects of the Invention As described above, according to the flow direction control device of the present invention, the following effects can be obtained.

(1) By moving the shielding plate vertically and rotationally, the flow can be deflected three-dimensionally over an arbitrary wide range.

(2) Since there is no need to insert a deflection plate or the like into the blowout flow, good adhesion can be achieved without disturbing the flow and deflection can be obtained over a wide angle.

(3) Due to the action of the flow dispersion member, the flow passing through the center becomes a bias flow, so that the adhesion to the guide wall is performed reliably, and the deflection characteristics are improved.

(4) When applied to the outlet of an air conditioner, etc., due to the effects of (1) to (3) above, the outlet flow can be deflected over a wide angle without reducing the air volume by rotating only one shaft. A great air conditioning effect can be obtained.

[Brief explanation of drawings]

1 and 2 are sectional views of a conventional flow direction control device, FIG. 3 is a perspective view showing an embodiment of the flow direction control device of the present invention, and FIG. 4 is a perspective view of a flow dispersion member. FIG. 5 is a perspective view of the shielding plate, and FIGS. 6 to 9 are longitudinal sectional views of FIG. 3. 5... Channel, 5a... Axis of channel, 6... Flow dispersion member, 7... Nozzle, 8... Throttle, 9... Guide wall, 10... Shielding plate.

Claims (1)

[Scope of Claims] 1. A nozzle that is provided at the outlet end of the flow path and has a restriction from the entire circumference with respect to the axis of the flow path, and a gradually expanding shape that is formed to surround the nozzle on the downstream side of the nozzle. a bias shielding plate provided on the upstream side of the nozzle to block a part of the flow toward the center of the flow path generated by the throttle; A flow direction control device comprising a flow dispersion member dispersing outwardly. 2. The flow direction control device according to claim 1, wherein the flow dispersion member has a substantially conical shape.