JPH0535284B2 - - 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, and 3 is a deflection plate rotated by a shaft 4. Due to the flow guiding action of the deflection plate 3, the flow coming out of the nozzle adheres to the guide walls 1a, 1b (1a in FIG. 1) and is deflected. When the deflection plate 3 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 3 is installed in the flow path, it creates resistance to the flow and also has a shape that disturbs the flow line, 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 airflow resistance or disturbing the streamlines.

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 guide wall formed in a gradually expanding shape; and 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 restriction. A flow control section is provided around the entire circumference of the nozzle to block a part of the flow flowing between the bias shielding plate and the nozzle.

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 adheres to the guide wall. Become. That is, as the bias shielding plate moves, the position of the guide wall to which the flow adheres changes.
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 blowing flow changes its blowing direction in accordance with the movement of the bias shielding plate vertically and horizontally. In other words, it becomes possible to blow out the flow in all directions three-dimensionally. 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, the flow is completely attached to the guide wall without reducing the air volume,
It has the effect of deflecting the flow over a wide angle. Further, due to the effect of the flow control section, even if the nozzle surface or the shielding plate is uneven, no gap is created between the nozzle and the shielding plate, making it possible to completely control the adhesion.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 to 8. In FIGS. 3 to 5, 5 is a flow path for guiding the flow sent from a blower, etc., 6 is a circular nozzle having a throttle 7 around the entire circumference with respect to the axis 5a of the flow path, and 8 is the nozzle of the nozzle 6. This is a guide wall formed to surround the nozzle on the downstream side, and gradually expands from the exit of the nozzle 6 as a starting point. A bias shielding plate 9 is provided upstream of the nozzle 6 to block the bias flow generated by the aperture 7 . (A perspective view is shown in FIG. 5) This rotates around a rotating shaft 10, is located outside the nozzle near the outlet of the nozzle 6, and is in contact with the aperture 7. This rotating shaft 10 is supported by a support member 11 that protrudes from the outer wall of the flow path 5 .
Furthermore, a nozzle protrusion 12 (flow control section) that protrudes toward the upstream side of the flow path is provided around the entire inner edge of the nozzle 6 . The shielding plate 9 is provided at a position in contact with the outer periphery of the nozzle protrusion 12 .

In the above configuration, the operation will be explained using FIGS. 6 to 8. First, a case where the shielding plate 9 and the aperture 7 are in close contact with each other as shown in FIG. 6 will be described. In this case, part of the flow entering the direction of the flow path is
This results in a bias flow Fb. 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 9. Therefore, the main flow Fa is directed toward the right guide wall by the bias flow Fb from the left, and the confluence F of Fa and Fb adheres to the right guide wall and is deflected to the right at a wide angle. The deflection angle O at this time can be arbitrarily set depending on the shape of the guide wall 8.
In this case, even if there are unevenness between the bias shielding plate 9 and the aperture 7 and these two do not come into close contact, the guide wall 8
The adhesion to is completely done. Note that instead of this nozzle protrusion 12, a groove may be provided on the nozzle surface, and a shielding plate may be inserted into the groove.

Next, a case where the rotating shaft 10 is rotated to move the shielding plate 9 to the position shown in FIG. 7 will be described. In this case, a gap is created between the shielding plate 9 and the aperture 7. A flow Fo opposing the bias flow Fb is generated from this gap opening, weakening the force of Fb.
As a result, the adhesion force of the combined flow F to the guide wall 8 is weakened, and the deflection angle O of the blown flow becomes smaller than in the case of FIG. 6. The deflection angle increases in proportion to the size of the gap opening.

Next, the case where the shielding plate 9 is moved to the position shown in FIG. 8 will be explained. In this case, the flow generated from the gap mouth has almost the same strength as the bias flow Fb, and the combined flow F is blown out to the front without being deflected.

As described above, by rotating the rotating shaft 10, the shielding plate 9
By moving the guide wall 8, the adhesion position and strength of the flow to the guide wall 8 change, and the blowing direction of the flow can be set at any position from the wide-angle deflection position to the front.

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

(1) Since no deflection plate is inserted into the blowout flow, the air volume does not decrease, and since there are no objects in the flow, the flow is not disturbed, allowing for good adhesion and wide-angle deflection. is obtained.

(2) By providing a flow control unit, even if there are irregularities on the aperture surface or shielding plate, the flow control unit works to block the flow between the aperture surface and the shielding plate, so the blowout flow can be guided. By fully attaching it to the wall, it is possible to obtain wide-angle deflection.

(3) When applied to the air outlet of an air conditioner, (1)
Due to the effect of (2), the blowout flow can be deflected at a wide angle without reducing the air volume by rotating only one shaft.
A great air conditioning effect can be obtained.

[Brief explanation of the drawing]

1 and 2 are sectional views of a conventional flow direction control device, FIG. 3 is a sectional view of an embodiment of the flow direction control device of the present invention, FIG. 4 is a plan view of FIG. 3, and FIG. The figure is a perspective view showing a shielding plate of the same flow direction control device, and FIGS. 6 to 8 are sectional views of the same flow direction control device. 5... Channel, 5a... Axis of channel, 6... Nozzle, 7... Throttle, 8... Guide wall, 9... Bias shielding plate, 12... Nozzle protrusion (flow control section).

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. and 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 caused by the restriction, and the bias shielding plate is provided around the entire circumference of the nozzle. A flow direction control device including a flow control section that blocks a part of the flow flowing between the plate and the nozzle. 2. The flow direction control device according to claim 1, wherein the flow control section is formed of a protrusion that is provided around the entire inner edge of the nozzle and protrudes toward the upstream side of the flow. 3. The flow direction control device according to claim 2, wherein the bias shielding plate is arranged so as to be in contact with the outer periphery of the nozzle protrusion.