JPS60155003A - Flow direction control device - Google Patents

Abstract

PURPOSE:To make it possible to deflect an air stream into an arbitrary direction with no decrease in air flow in a flow direction control device, by directing the blow-off stream of the flow direction control device, tangentially to the terminal end of a guide wall with the use of a nozzle, guide walls, a bias shield plate and a plurality of auxiliary blow-off ports. CONSTITUTION:With the use of a nozzle 6 having an a constriction 7 formed therein and extending entirely over the circumference of the nozzle 6, guide walls 8a through 8d and a bias shield plate 9 for shielding a bias flow which is generated by the constriction 7 formed in the upstream side of the nozzle 6, the deflection of air stream may be made over a wide angle range. The blow-off direction theta of an auxiliary blow-off port 60 arranged to be communicated with the passage upstream of the nozzle 6 is set to be coincident substantially with the line tangential to the terminal end of the guide wall 8c. With this arrangement, the total flow of air blown off under action of the auxiliary blow-off port 60 increases, thereby the lowering of air flow due to the provision of the constrictuion 7 may be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a flow direction control device that is installed at the outlet of an air conditioner or the like and is used to deflect and blow out the flow from an air source in any direction. be.

In air conditioners that perform cooling and heating, the air flow direction is controlled to blow downward during heating and horizontally during cooling, in order to equalize the lagoonal distribution of the room being air-conditioned. Full control is desirable. Due to the location of the air conditioner, etc., it is desirable to have a wide-angle deflection in the left and right directions as well.

Conventional examples for achieving this purpose are shown in FIGS. 1 and 2. In the figure, 1a and 1b are guide walls.Although only two are shown in the figure, there are many), 2
A nozzle 3 for blowing out the C1 flow is a deflection plate rotated by a shaft 4. Due to the flow guiding action of this deflection plate 4,
The flow coming out of the nozzle is guided by the guide walls 1a and 1b (1 in Figure 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 completely 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. There was a problem in that the overall effect was inevitably deteriorated.

Purpose of the Invention The purpose of the present invention is to solve all of the problems of the conventional art, and to provide a flow direction control device that completely deflects the flow in a wide angle vertically and horizontally without causing any air flow resistance or disturbing the streamlines. 0 Structure of the Invention In order to achieve this object, the present invention provides a nozzle that is provided at the outlet end of a flow path and has a narrowing from the entire circumference with respect to the axis of the flow path; A guide wall with a gradually expanding shape formed to surround the nozzle outlet at The bias shielding plate is configured in an odd position to block the bias flow, and the bias shielding plate is configured in an odd position to block the bias flow, and the bias shielding plate is configured to block a part of the flow toward the flow path upstream of the nozzle. A plurality of blow-off ports are provided along the nozzle and outside the shielding plate, and the blowing direction of the flow from the auxiliary blow-off port is set to be substantially tangential to the end of the guide wall.

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. The position of the flow adhering to the guide wall changes according to the movement of the deflected bias shielding plate, and the direction of the flow can be changed at will. In this case, the bi'7 sill plate is located upstream of the nozzle and outside the nozzle, so it does not create resistance to the flow and does not disturb the flow. It has the effect of making all the flow adhere to the surface and deflecting the flow over a wide angle. The broken flow blown out from the auxiliary outlet exits from the nozzle and adheres to the guide wall, and is pulled outward by the total attraction effect, so that the flow from the nozzle is more reliably attached to the guide wall, and the flow is can be 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., and 6 is a flow channel [l1lt15a
A rectangular nozzle having an aperture 7 from the entire circumference, 8a,
Guide walls 8b, 8c, and ad are formed to surround the nozzle on the downstream side of the nozzle 6, and are formed of four wall surfaces that gradually expand as the starting point for the exit of the nozzle 6. A bias shielding plate 9 is provided upstream of the nozzle 6 to contain the bias flow generated by the aperture 7. This knife is placed on the outside of the nozzle near the outlet of the nozzle.

It is in contact with aperture 7. Also, the bias shielding plate 9 rotates l
1ilI] 10, and moves along the nozzle 6 according to the rotation of this rotating shaft 10! IIf is configured. This rotating shaft 10 is supported by a shaft support 11. Further, along the nozzle 6, several auxiliary blow-off ports 60 are provided so as to be connected to the main flow path of the nozzle 6, and the blow-out direction θ of the auxiliary blow-off ports 60 is guided as shown in FIG. It is set to be approximately equal to the tangential direction a of the end of the wall 8c (same as 8a to 8d).

In the above configuration, the entire operation will be explained using FIGS. 6 and 7. Without further ado, the direction of bias shielding plate 9 viewed from the side as shown in FIG. 6 will be explained. A part of the flow that enters in the direction of the axis 5a of the channel becomes a bias flow Fb due to the throttle 7. Here, a bias flow Fb is generated on the left side of the figure, but on the right side, a bias flow Fb is generated due to the effect of the bias shield plate. No flow occurs. Therefore, the main flow Fa is deflected toward the guide wall 8a by the bias flow Fb from the left side,
The confluence F of Fa and Fb is formed on the guide wall 8a 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 8a.

As shown in FIG. 7, when looking at the bias shield plate 9 from the front, the bias flow rate Fb occurs on both the left and right sides, so these two flows cancel each other out, and the combined flow F is directed towards 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. At this time, the bias shielding plate does not come into contact with the main flow Fa, so it does not create resistance to the flow or create any holes in the flow, and the flow is deflected at a wide angle without reducing the air volume. . In addition, as shown in FIG.
”By the action of 60! A portion of the flow is blown out approximately tangentially to the end of the guide wall 8a.

As a result, the flow F blown out from the nozzle 6 and attached to the guide wall 8a is attracted to this flow and pulled further outward, so that the adhesion effect to the guide wall 8a is ensured, and the deflection angle β (sixth (shown in the figure) will increase.

That is, the line changes from the broken line to the solid line in FIG. Moreover, the effect of the auxiliary air outlet 60 increases the overall flow rate of air blown out, and there is also the effect that the reduction in air volume caused by the throttle 7 is reduced.

Next, another embodiment of the present invention will be described with reference to FIGS. 8 and 9. In the figure, 12 is a nozzle formed in a circular shape. 13 is a guide wall, which here has a trumpet shape. 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 trumpet-shaped, so the rotation interval of the bias shielding plate 140 is not limited. , the direction of flow rate can be set arbitrarily and precisely.

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 except 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, increasing the deflection angle, and
It is possible to reduce the decrease in air volume due to the throttle section.

(3) When applied to the air outlet of an air conditioner, due to the effects of (1) and (2), the air flow is deflected vertically and horizontally over a wide angle 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 A-A in FIG. 3. 5 is a top view of the device, and FIG. 6 is a top view of the device in FIG. 3.
7 is a left side view of FIG. 6, FIG. 8 is a perspective view of a flow direction control device showing a second embodiment of the present invention, and FIG. 9 is a second embodiment of the present invention. FIG. 2 is a perspective view of a bias shield of an example flow direction control device. 5... Channel, 5 &... Axis of channel, 6, 12...
...Nozzle, 7...Aperture, 8a, 8b, 8
c, 8d...Pa guide wall, 9...Bias shielding plate, 6
0...°Auxiliary blowout nozzle. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure 3 Man 4 Figure 5 Ab L Figure 6 Figure 7 Figure 8 Tsutsuki 9 Figure 15-

Claims (1)

[Scope of Claims] (1) A nozzle provided at the outlet of the flow path and constricted from the entire circumference with respect to the axis of the flow path, and a nozzle formed to surround the nozzle outlet on the downstream side of the nozzle. a guide wall having 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 that occurs in the axial direction of the flow path. , the bias shield plate is configured such that the position at which it blocks the flow component is variable, and a plurality of auxiliary air outlets other than the nozzle connected to the flow path upstream of the nozzle are provided along the nozzle and outside the shield plate. , a flow direction control device in which the blowing direction of the flow from the auxiliary blowout port is oriented 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 entirely rectangular and the guide wall is composed of four surfaces. (3) The flow direction control device according to claim 1, wherein the nozzle is formed entirely in a circular shape, and the guide wall is configured in a trumpet shape. (4) The flow direction control device according to claim 3, wherein the bias shielding plate is formed in an arc shape and configured to rotate around the nozzle axis.