JPH0233938B2 - NAGAREHOKOSEIGYOSOCHI - 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.

BACKGROUND TECHNOLOGY In an air conditioner that performs cooling and heating, it is desirable to control the direction of the air flow to downward blow during heating and horizontal blow during cooling in order to equalize the temperature distribution in the room being air conditioned.

Conventional examples for achieving this purpose are shown in FIGS. 11 and 12. 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. 11) 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.

Problems to be Solved by the Invention Since the deflection plate 3 is provided in the flow path, it becomes a resistance to the flow and also has a shape that disturbs the streamlines of the flow, which worsens the adhesion effect to the wall surface. There was a problem that cannot be avoided.

Means for Solving the Problems The present invention solves the conventional problems,
a nozzle provided at the outlet end of the flow path and having a restriction from the entire circumference of the flow path; a guide wall formed in a gradually expanding shape to surround the nozzle outlet on the downstream side of the nozzle; and a guide wall upstream of the nozzle. a bias shielding plate provided on the side and blocking a part of the flow toward the center of the flow path caused by the aperture;
The bias shielding plate changes the amount by which it blocks part of the flow.

Effect 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. result.

Furthermore, by changing the amount of blocking the bias flow, the degree of flow adhesion to the guide wall is controlled;
It becomes possible to blow air in an intermediate direction between the front direction and the maximum deflection direction. As a result, the blowing direction can be changed arbitrarily by moving the bias shielding plate. Further, 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.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. In FIGS. 1 to 3, 5 is a flow path for guiding the flow sent from a blower, etc., 6 is a rectangular nozzle having a throttle 7 around the entire circumference with respect to the axis 5a of the flow path, and 8 is 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. Moreover, this guide wall consists of four wall surfaces 8a, 8b, 8c, and 8d. On the upstream side of the nozzle 6,
A bias shield plate 9 is provided 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 moving shaft 10, and is configured to move in the vertical direction in the figure in accordance with the movement of this moving shaft 10. This moving shaft 10 is supported by a shaft support 11. Furthermore, the moving shaft 10 is configured to be able to slide in the shaft support 11 and move in the axial direction, and by this movement, as shown in FIG. d can be varied. As shown in FIG. 4, a guide groove 12 is cut in the movable shaft 10, and the movable shaft 10 is positioned by a fixing ball 13 provided on the shaft support 11.

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 mainstream 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,
Wide-angle deflection to the right. 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 looking at 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. Speech out. That is, the flow is deflected only in the direction where the bias shielding plate 9 exists.

As shown in FIG. 8, when a gap d is provided by moving the moving shaft 10 in the axial direction, a bias flow Fd is generated passing through this gap. Due to this Fd, the flow F
The adhesion to the guide wall 8a is slightly weakened, and as shown in the figure, the blowing direction is intermediate between the frontal blowing and the maximum deflection. The direction of this blowout is the gap d
It changes in proportion to the size of the , and can be set arbitrarily.

Therefore, by moving the moving shaft 10 in the axial direction, it becomes possible to blow out the flow in the left-right direction in the figure. In this case, if the installation direction is tilted by 90 degrees, it will be deflected in the vertical direction. Furthermore, at this time, the bias shielding plate does not come into contact with the main flow Fa, so it does not act as a resistance to the flow or disturb the flow, and the flow is deflected over a wide angle without reducing the air volume.

Next, another embodiment of the present invention will be described using FIGS. 9 and 10. In the figure, 14 is a nozzle, which is formed in a circular shape. 15 is a guide wall,
Here it is shaped like a rattupa. Reference numeral 16 denotes a bias shielding plate, which in this case has an arcuate shape. In operation, the flow adheres to the guide wall surface corresponding to the nozzle portion where the bias shield plate is located and is deflected, almost in the same way as in the first embodiment.

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 into the air flow, the air volume does not decrease, and since there are no objects in the flow, the flow is not disturbed, and adhesion is performed well and a wide-angle Deflection is obtained.

(2) A small amount of displacement of the bias shield plate can greatly deflect the flow. This facilitates automatic direction control and the like.

(3) When applied to the air outlet of an air conditioner, due to the effect of (1), the air flow is deflected vertically (or horizontally) without reducing the air volume, resulting in a great air conditioning effect.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a flow direction control device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, FIG. 3 is a top view of FIG. 1, and FIG. 4 is a shaft FIG. 5 is an enlarged sectional view of the supporting portion; FIG. 5 is a sectional view taken along line A-A in FIG. 1 with a gap d; FIG. 6 is a sectional view taken along line A-A in FIG. 7 is a left sectional view of FIG. 6, FIG. 8 is a sectional view of FIG. 8 when there is a gap d, and FIG. 9 is a perspective view of a flow direction control device showing a second embodiment of the present invention. FIG. 10 is a perspective view showing a bias shielding plate of a second embodiment of the flow direction control device of the present invention, and FIGS. 11 and 12 are perspective views of a conventional flow direction control device. 5... Channel, 5a... Axis of channel, 6... Nozzle, 7... Throttle, 8... Guide wall, 9... Bias shielding plate.

Claims (1)

[Scope of Claims] 1. A nozzle provided at the outlet end of the flow path and having a restriction from the entire circumference of the flow path, and a guide having a gradually expanding shape formed to surround the nozzle outlet on the downstream side of the nozzle. a wall, 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 generated by the aperture, and the bias shielding plate blocks a part of the flow. Flow direction control device with variable amount of obstruction. 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, the guide wall is formed in a lapel shape, and the bias shielding plate is formed in an arc shape. 4. The flow direction control device according to claim 1, wherein the amount of blocking a part of the flow is variable by changing the gap between the bias shielding plate and the nozzle.