JPH0535283B2 - - 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 4, 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 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 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. The bias shielding plate is movable in a spiral manner with respect to the axial direction of the flow path.

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. Further, as the bias shield plate moves in a spiral manner, the position of the guide wall to which the flow adheres changes. Furthermore, by changing the distance 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 a spiral manner in accordance with the spiral movement of the bias shielding plate. In other words, it becomes possible to blow out the flow in all directions three-dimensionally. In addition, in this case, the bias shielding plate is present on the upstream side of the nozzle and outside the nozzle, so
It does not create 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.

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, and a portion 10a of the rotating shaft 10 and the supporting member 11 are coupled with a screw. As a result, the shielding plate 9 moves spirally in the axial direction of the flow path in accordance with the rotation of the rotating shaft 10.

In the above configuration, the operation will be explained using FIGS. 6 to 8. First, the case where the shielding plate 9 and the nozzle 7 are in close contact with each other as shown in FIG. 6 will be described.
In this case, a part of the flow that enters the flow path becomes a bias flow Fb due to 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 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 at this time can be arbitrarily set depending on the shape of the guide wall 8.

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 D occurs between the shielding plate 9 and the diaphragm 7. During this time, a flow F _D opposing the bias flow Fb is generated from 〓D, which weakens the force of Fb.
As a result, the force with which the combined flow F adheres to the guide wall 8 is weakened, and the deflection angle of the blown flow becomes smaller than in the case of FIG. 6. Then, the deflection angle increases in inverse proportion to the size of the distance D.

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 D 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 in a spiral manner, the adhesion position and strength of the flow to the guide wall 8 change, and the blowing direction of the flow can be set to any desired position in a spiral manner from the wide-angle deflection position to the front.

Next, another embodiment of the present invention will be described using FIGS. 9 and 10. In FIG. 9, 1 to 11 are the same as in the first embodiment. 12 is nozzle 6
This is a protrusion that is provided at the inlet portion of the bias shield plate and has a diameter smaller than that of the bias shield plate, and is directed toward the upstream side of the flow. Due to the effect of this protrusion, the distance between the shielding plate 9 and the aperture 7 during approximately one rotation of the rotating shaft 10 is
Even if the flow changes, the flow F _D passing through the gap is blocked by the protrusion 12, and the blowing flow adheres to the guide wall 8 in the best possible manner. In other words, the action of the protrusion makes it possible to blow out the flow at the maximum deflection angle over the entire circumference.

In FIG. 10, a rotating shaft 10 is configured to be rotated by a motor 13, thereby enabling remote control using a remote control or the like, automatic swinging, etc.

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) As a result of the shielding plate moving in a spiral pattern in response to the rotation of the rotating shaft, the direction of the flow of flow changes in a spiral pattern. The direction of the flow can be set at a wide angle.

(3) When applied to the air outlet of an air conditioner, (1)
Due to the effects of (2) and (2), the blowout flow can be deflected over a wide angle without reducing the air volume by rotating only one shaft, and 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 sectional view of a flow direction control device according to an embodiment of the present invention, FIG. 4 is a plan view of FIG. 3, and FIG. The figure is a perspective view showing the shielding plate of the flow direction control device of the present invention, FIGS. 6 to 8 are cross-sectional views when the position of the shielding plate of the flow direction control device of the present invention is moved, and FIG. 9 is a perspective view showing the shielding plate of the flow direction control device of the present invention. A sectional view of the second embodiment of the invention, and FIG. 10 is a sectional view of the third embodiment of the invention. 5... Channel, 5a... Axis of channel, 6... Nozzle, 7... Throttle, 8... Guide wall, 9... Bias shielding plate, 10... Rotating shaft, 11... Support member, 1
2... Protrusion.

Claims (1)

[Scope of Claims] 1. A circular nozzle provided at the outlet end of the flow path and having a restriction from the entire circumference with respect to the axis of the flow path, and a gradually expanding nozzle formed to surround the nozzle on the downstream side of the nozzle. a shaped guide wall, and a bias shielding plate that is provided on the upstream side of the nozzle and outside the nozzle and blocks a part of the flow toward the center of the flow path generated by the aperture, and the bias shielding plate is a flow direction control device capable of moving in a spiral manner with respect to the axial direction of the flow path. 2. The flow direction control device according to claim 1, wherein a part of the rotating shaft of the bias shielding plate and a support member protruding from the outer wall of the flow path are connected with a screw.