JPS60237209A - Flow direction controller - Google Patents

Abstract

PURPOSE:To suppress decrease in the air flow quantity and to enable a wide angle deflection by providing a pair of, left and right, rotatable vanes having curved faces in the vicinities of guide walls of the titled flow direction controller, and a plurality of vanes disposed on a line between the above vanes. CONSTITUTION:A pair of, left and right, rotatable vanes 7 and 8 having curved faces are provided in the vicinities of guide walls 5 and 6, and a plurality of vanes 70 and 80 are disposed on the same axis between the pair of vanes so that the vanes 70 and 80 promote the adhesion of air flow to curved faces 7b and 8b on the projected part side. For this reason, by utilizing the adhesive effect of the air flow to the projected parts of curved vanes and the adhesive effect of the air flow to the guide walls, it is possible to deflect the air flow at an arbitrary position in a wide angle without almost changing the air flow quantity.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a flow direction control device that deflects a flow blown out from an air conditioner or the like in an arbitrary direction. Concerning things that deflect.

The configuration of the conventional example and its problems As shown in Figures 1 and 2, the aspect ratio H/W (H
A conventional flow direction control device for a case where the flow direction control device (see FIG. 2 for W and W) is small is one in which a plurality of rotary blades 1 are arranged in a line. With this configuration, as shown by the dashed line, if you try to deflect the flow significantly to the left (or right) from the front, almost all of the flow will collide with blade 1 and be forcibly deflected. At the same time, since the passage %w is also extremely reduced, the blowout flow rate is significantly reduced compared to the case of the solid line. Therefore, in practice, the deflection angle θ of about 30' was the limit. However, at this deflection angle, there are many areas where the air conditioner does not reach depending on the installation position and conditions of the air conditioner, so there are many inconveniences in use.

OBJECTS OF THE INVENTION The present invention has been made to solve these conventional problems, and it is an object of the present invention to provide a flow direction control device that can deflect the flow over a wide angle while minimizing the rate at which the air volume decreases.

Structure of the Invention In order to achieve this object, the present invention provides a pair of left and right guide walls provided at both ends of a passageway in the longitudinal direction and shaped to expand outward; A pair of rotatable left and right blades having curved surfaces so as to follow the flow along the guide wall, and a plurality of rotatable blades having curved surfaces arranged in a row with a gap between them. The plurality of blades are arranged in such a position as to promote the flow passing between the blades to adhere to the convex curved surface of each blade. With this configuration, when the blades are not tilted toward the nearby guide wall, the flow passing between the blades adheres to the convex surface of each blade and is significantly deflected, and the flow near the guide wall is deflected. It will adhere to the wall and the entire flow will be largely deflected in the direction of expansion of the guide wall. At this time, since the flow is deflected by the effect of adhesion to the curved surface, there is almost no decrease in the air volume, so it is possible to largely deflect the flow without changing the air volume. Additionally, since each blade faces in the opposite direction, the flow can be deflected over a wide angle, twice the normal width.

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, reference numeral 2 denotes a blowing passage having a rectangular cross section and having an inlet 3 and an outlet 4. 5 and 6 are exit 4
A pair of left and right guide walls are provided at both ends in the longitudinal direction and are shaped to expand outward.

7 and 8 are placed near the guide walls of 5 and 6, respectively,
They are a pair of rotatable left and right blades having curved surfaces so as to follow the respective guide walls 5 and 6. A plurality of blades 70 and 80 are provided between the blades 7 and 8.
These are arranged approximately on the same axis to encourage the flow passing between each vane to adhere to the convex curved surfaces 7b and 8b of each vane, and the spacing between the vanes is H is set to be smaller than the chord length l of the blade. Note that considering the resistance of the air flow, it is better to have a smaller total number of blades, so it is desirable that the interval H and the chord length l are approximately equal.

In the above configuration, in the rotational positions of the blades 7 and 8 and 70 and 80 as shown in FIG. 6, the flow continues straight between the blades, and both the left flow FL and the right flow FR travel straight. Next, as shown in FIG. 7, when the blades 7 and 8 and 70 and 80 are tilted in the direction of the guide walls 5 and 6, the flow a in the figure is caused by the action of the concave surface 7a1 of the blade 7, It adheres to and flows. The flow b flows while adhering to the convex surface 7bl due to the action of the concave surface 70a2 of the blade 70 because the interval H between the blades is smaller than the chord length e of the blade. Similarly, C flows while adhering to 70b2.

The flow adhering to the convex surfaces of these vanes then adheres to the guide wall 5, similar to the flow a, and flows out after being deflected at a wide angle. As shown in FIG. 8, when the vanes 8 and 80 are tilted away from the guide wall 6, the flow flows out slightly to the left without adhering to the guide wall. As described above, depending on the rotation of the blades 7 and 8 and 70 and 80, it is possible to deflect the flow from side to side over a wide angle or blow it out to the front. Furthermore, since this deflection action utilizes the adhesion effect of the flow, it has the advantage of hardly changing the air volume.

Furthermore, by changing the ratio of the number of blades 70 and 80, the ratio between the left flow FL and the right flow F'R can be changed, making it possible to perform optimal blowout control depending on the purpose. .

FIGS. 9 and 10 show a case where the above embodiment is applied to a W-type heat pump air conditioner. In the figure, 9 is the indoor air conditioner main body, 10 is a cross flow fan, 11
is a heat exchanger, 12 is a louver for vertical deflection, 13 and 14 are connections for simultaneously rotating blades 7 and 8 and 70 and 80, respectively, and 15 and 16 are blades 7, 8, and 70.
This is a lever for rotating the and 80. When the crossflow fan 10 rotates in this configuration, the flow is sucked through the heat exchanger 11, deflected at a wide angle to the left and right by the flow direction control device of the present invention, and deflected up and down by the 12 vertical deflection louvers. It flows out. By operating the levers 15 and 16 and rotating the blades 7 and 8 and 70 and 80, the flow can be deflected over a wide angle in any direction, providing comfortable air conditioning regardless of the installation position of the air conditioner. It can be realized.

Effects of the Invention As described above, according to the flow direction control device of the present invention, a plurality of curved rotatable blades are arranged between the guide walls so as to direct the flow along the pair of left and right guide walls, respectively. In addition, since the configuration is such that the flow adheres to the convex surface of each blade, the air volume can be adjusted by utilizing the effect of the flow adhering to the convex surface of the curved blade and the effect of the flow adhering to the guide wall. It becomes possible to deflect the flow to any desired position over a wide angle without changing much. Furthermore, since each group of blades faces in opposite directions, it is possible to deflect the flow over a wide angle, twice the normal width. As a result, when applied to an air conditioner or the like, air conditioning flow can be sent to a wide area regardless of the installation position of the air conditioner, and a great air conditioning effect can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a plan sectional view of a conventional flow direction control device, FIG. 2 is a front view of FIG. 1, FIG. 3 is a plan sectional view of a flow direction control device showing an embodiment of the present invention, and FIG. is a front view of FIG. 3, FIG. 5 is a partially enlarged view of FIG. 3, FIGS. 6 to 8 are plan sectional views of a flow direction control device showing an embodiment of the present invention, and FIG. 10 is a front sectional view showing an embodiment of the flow direction control device of the invention applied to a wall-mounted heat pump; FIG.
The figure is a side sectional view of the same. 2...Aisle, 3...Entrance, 4...
...Exit, 5.6...Guidance wall, 7,8.70.
80... Feather. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3 Figure 5 Figure 6 F Mut R Figure 7 Figure 8

Claims (1)

[Scope of Claims] (1) A pair of left and right guide walls that are provided at opposite ends of an outlet of a passage having an inlet and an outlet and have a shape that expands outward, and are respectively disposed near the pair of guide walls, and A pair of rotatable blades each having a curved surface that allows the flow to flow along each of the pair of guide walls, and a plurality of rotatable blades each having a curved surface and arranged in a row with a space between them. Flow direction control device with two blades. ,-(2
2. The flow direction control device according to claim 1, wherein the interval between the respective blades is approximately the same as the length of the chord of the blade. (3) The flow direction control device according to claim 1, wherein the pair of left and right guide walls and the plurality of blades are symmetrical in shape and arrangement.