JPH0337106B2 - - 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 flow direction control device for deflecting and blowing a flow from an air source in an arbitrary direction.

Conventional configuration and its problems In air conditioners that perform cooling and heating, the direction of air flow is controlled to blow downward during heating and horizontally during cooling, in order to equalize the temperature distribution in the room being air conditioned. This 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.

Figures 1 and 2 show conventional examples of achieving this purpose.
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 deflecting plate 4, the flowing water coming out of the nozzle adheres to the guide walls 1a, 1b (1a in FIG. 1) 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 problem of inevitably deteriorating the effect.

Purpose of the Invention The present invention solves the problems of the conventional art, and aims to provide a flow direction control device that deflects the flow at a wide angle vertically and horizontally without causing air flow resistance or disturbing the streamlines. shall be.

Structure of the Invention To achieve this object, the present invention provides a nozzle that is provided at the outlet end of a flow channel and has a restriction from the entire circumference with respect to the axis of the flow channel, and a nozzle that surrounds the nozzle outlet on the downstream side of the nozzle. a guide wall having a gradually expanding shape formed as shown in FIG.
Bias flow due to the aperture (caused by the aperture,
a bias shielding plate that blocks a part of the flow toward the axis of the flow path, and the bias shielding plate is configured such that the position where it blocks part of the flow toward the axis of the flow path is variable, and A plurality of auxiliary outlets other than the nozzle connected to the flow path are provided along the guide wall and outside the shielding plate, and the direction of flow from the auxiliary outlets is substantially tangential to the end of the guide wall. It was as if I was heading towards it.

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. . Furthermore, the position of the flow adhering to the guide wall changes according to the movement of the bias shielding plate, making it possible to arbitrarily change the direction of the flow. In this case, since the bias shielding plate exists on the upstream side of the nozzle, 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. In addition, the flow blown out from the auxiliary outlet pulls the flow exiting from the nozzle and adhering to the guide wall outward by an attraction effect.
The flow from the nozzle can be made to adhere to the guide wall more reliably, and the flow can be more directed outward.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 to 7. In FIGS. 3 to 5, 5 is a channel for guiding the flow sent from a blower, etc., 6 is a rectangular nozzle having a throttle 7 from the entire circumference with respect to the axis 5a of the channel, 8a, 8b, 8c. , 8d is a guide wall formed to surround the nozzle on the downstream side of the nozzle 6, and is made up of four wall surfaces that gradually expand starting from the exit of the nozzle 6. A bias shielding plate 9 is provided on the upstream side of the nozzle 6 to block the bias flow generated by the aperture 7 . This is located near the exit of the nozzle 6 and is in contact with the aperture 7. Further, the bias shielding plate 9 is integrated with a rotating shaft 10 and is configured to move along the nozzle 6 in accordance with the rotation of the rotating shaft 10.
This rotating shaft 10 is supported by a shaft support 11. Further, a plurality of auxiliary blow-off ports 60 are provided along the nozzle 6 so as to be connected to the flow path upstream of the nozzle 6, and the blow-out direction θ of the auxiliary blow-off ports 60 is set along the guide wall as shown in FIG. 8c (8
(a to 8d are also set to be approximately equal to the tangential direction α of the terminal end).

The operation of the above configuration will be explained using FIGS. 6 and 7. First, the direction in which the bias shielding plate 9 is viewed from the side as shown in FIG. 6 will be described. A part of the flow that enters in the direction of the axis 5a of the channel becomes a bias flow Fb by the throttle 7. Here, a bias flow Fb occurs on the left side of the figure, but no bias flow occurs on the right side due to the effect of the bias shielding plate. Therefore, the main flow Fa is directed toward the guide wall 8a by the bias flow Fb from the left side, and the confluence F of Fa and Fb adheres to the guide wall 8a and is deflected at a wide angle to the right side. The deflection angle at this time can be arbitrarily set depending on the shape of the guide wall 8a.

As shown in FIG. 7, when viewing the bias shielding plate 9 from the front, the bias flow Fb occurs both to the left and right, so these two flows cancel each other out, and the combined flow F is directed to the front. Blow out. That is, the flow is deflected only in the direction where the bias shielding plate 9 exists. Therefore, by moving this bias shielding plate 9 by rotating the rotating shaft 10, it becomes possible to deflect the flow in any direction. In addition, at this time, the bias shielding plate does not come into contact with the main flow Fa, so it does not act as resistance to the flow or disturb the flow, and the flow is deflected over a wide angle without reducing the air volume. Further, as shown in FIG. 6, a portion of the flow is blown out in a direction substantially tangential to the end of the guide wall 8a due to the action of the auxiliary blowout port 60. As a result, the air is blown out from the nozzle 6 and the guide wall 8
The flow F attached to c attracts each other with this flow,
As a result of being pulled further outward, the adhesion effect to the guide wall 8a becomes more reliable, and the deflection angle β (shown in FIG. 6) increases. That is, the line changes from the broken line to the solid line in FIG. In addition, the effect of the auxiliary blow-off port 60 increases the overall flow rate of the air blown out, and there is also the effect that the reduction in air volume caused by the throttle 7 is reduced.

Figure 10 shows the opening area ratio (auxiliary blowout opening area/
It shows the change in the deflection angle β with respect to the nozzle opening area). The flow velocity and pressure are considered to be almost the same since they have the same inlet. As is clear from this figure, the deflection angle increases almost in proportion to the aperture area. That is, the opening area can be arbitrarily set depending on the necessity of the deflection angle.

Next, another embodiment of the present invention will be described using FIGS. 8 and 9. In the figure, 12 is a nozzle and is formed in a circular shape. Reference numeral 13 denotes a guide wall, which is shaped like a tsupa here. Reference numeral 14 denotes a bias shielding plate, which in this case has an arcuate shape. In operation, the flow adheres to the surface of the guide wall 13 corresponding to the nozzle portion where the bias shielding plate 14 is located and is deflected in substantially the same manner as in the first embodiment. In addition, in this embodiment, the nozzle 12 is circular, the bias shielding plate 14 is arcuate, and the guide wall 13 is tapered, so the rotation interval of the bias shielding plate 14 is limited. First, the blowing direction of the flow can be set arbitrarily and finely. Further, the present invention is not limited to the above-mentioned operation with gas, but can also operate with a mixture with a liquid or only with a liquid.

Effects of the Invention As described above, the flow direction control device of the present invention provides the following effects.

(1) Since there is no need to insert a deflection plate or the like into the blowout flow, the air volume does not decrease other than at the constriction part, and since there are no objects in the flow, the flow is not disturbed and the adhesion is good. and a wide-angle deflection is obtained.

(2) The effect of the auxiliary air outlet ensures that the air flow adheres to the guide wall, increases the deflection angle, and reduces the reduction in air volume caused by the throttle section.

(3) When applied to the outlet of an air conditioner, (1) and
Due to the effect of (2), the airflow is deflected over a wide angle vertically and horizontally without reducing the air volume, resulting in a great air conditioning effect.

[Brief explanation of drawings]

1 and 2 are cross-sectional views of a conventional flow direction control device, FIG. 3 is a perspective view showing a flow direction control device according to an embodiment of the present invention, and FIG. 4 is a line AA in FIG. 3. 5 is a top view of the device, FIG. 6 is a sectional view taken along line A-A in FIG. 3, FIG. 7 is a left side view of FIG. 6,
FIG. 8 is a perspective view of a flow direction control device according to a second embodiment of the present invention, FIG. 9 is a perspective view of a bias shielding plate of a flow direction control device according to a second embodiment of the present invention, and FIG. The figure is a characteristic diagram showing the same deflection angle. 5... Channel, 5a... Axis of channel, 6, 12...
Nozzle, 7...Aperture, 8a, 8b, 8c, 8d...
...Guide wall, 9...Bias shielding plate, 60...Auxiliary blowing nozzle.

Claims (1)

[Scope of Claims] 1. A nozzle provided at the outlet end of the flow path and having a constriction from the entire circumference with respect to the axis of the flow path, and a gradually expanding nozzle formed to surround the nozzle outlet on the downstream side of the nozzle. a shaped guide wall, and a bias shielding plate provided on the upstream side of the nozzle and blocking a part of the flow toward the axis of the flow path generated by the throttle,
The bias shielding plate is configured such that the position where it blocks part of the flow toward the axis of the flow path is variable, and the auxiliary air outlet other than the nozzle connected to the flow path upstream of the nozzle is arranged along the guide wall and at a position where it blocks a part of the flow toward the axis of the flow path. A plurality of flow direction control devices are provided on the outside of the plate, and the blowing direction of the flow from the auxiliary blow-off port is directed substantially in the tangential direction of the end of the guide wall. 2. The flow direction control device according to claim 1, wherein the nozzle is formed in a rectangular shape and the guide wall is configured with four surfaces. 3. The flow direction control device according to claim 1, wherein the nozzle is formed in a circular shape and the guide wall is formed in a truss shape. 4. The flow direction control device according to claim 3, wherein the bias shielding plate is formed in an arcuate shape and configured to rotate around the nozzle axis.