JPS59231204A - Flow direction controller - Google Patents

Abstract

PURPOSE:To obtain a single flow of a wide deflected angle and a divided flow of a wide angle and form even a straight flow by providing a pair of curved guide walls in the lower course from a nozzle and disposing an elliptic control blade having a penetration groove in the direction of the minor axis in the vicinity of the nozzle outlet. CONSTITUTION:The inlet part 4 of a flow direction controller 1 is defined by the side plates 5 and 6 of the inlet part and has nozzles 7 and 8 the lower course sides of which are directed inwardly from the side plates thereof. The flow passage of the outlet part 11 of the controller 1 is defined by curved guide walls 12 and 13. A control blade 16 having the substantially elliptic section is disposed in the vicinity of the nozzles 7 and 8 and has a rectangular penetration groove 22 opened in the direction of the minor axis. The control blade 16 is turnably hung to side plates 2 and 3 and is capable of being fixed in an arbitrary turned position.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an airflow direction control device that can be applied to an airflow outlet such as an air conditioner.

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Conventional Structure and Problems Conventionally, a method for controlling the direction of flow by creating an adhesion effect on a wall on a curved surface to cause deflection as well as flow diversion is known from Japanese Patent Application Laid-Open No. 56-18109. ing. However, in this example, one wall is curved while the other is planar, and the mutual flow at the time of separation cannot be separated at a wide angle.

OBJECTS OF THE INVENTION The present invention solves these conventional problems, and aims to achieve wide-angle deflection and wide-angle branching of a single flow, as well as form a straight flow, and achieve a blowout flow over a wide area. .

Structure of the Invention In order to achieve this object, the present invention provides a pair of curved guide walls downstream of the nozzle, and near the nozzle exit is arranged an ellipsoidal control blade having a through groove in the minor axis direction. are doing. This configuration achieves wide-angle deflection of the flow based on the rotation of the control vanes and wide-angle diversion in a state where a straight flow is generated.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In FIGS. 1 to 4, 1 is a flow direction control device. 2.31JH side plate, which partitions the side of the flow direction control device 1.

4 is an inlet, and its flow path is connected to the inlet shown by 5 and 6.
Downstream side d: Inlet side plate.
, 6 , J: Nozzle 7 arranged toward the inside.
It has 8. 9 and 10 are nozzle tips.

Reference numeral 11 denotes an outlet section, and a flow path thereof is formed by curved guide walls 12 and 13. 14 and 15 are upstream ends of the guide walls, each of which is located outward from the nozzle tip 9°1o.

A control vane 16 is arranged in the vicinity of the nozzle 7.8, and its cross section is formed into a square ellipse. 22 is a through groove provided in the short axis direction of the control blade 16 and having a rectangular cross section. 1γ and 18 are shafts attached to both sides of the control blade 160, and are set to be rotatable on the side plates 2 and 3, respectively, and fixed at any rotational position.

Further, 19 is the head of the control blade 160, and 20 and 21 are curved surfaces.

Next, the operation will be explained.

In FIG. 2, the long axis of the elliptical shape of the control vane 16 is connected to the nozzle 7.
This is the case when facing the direction of the flow emanating from 8.

The flow A flowing into the inlet section 4 is divided into two flows A1 by the head 19 of the control vane 16 near the outlet of the nozzle 7.
．． It is divided into A2. Flows A1 and A2 each flow adhering to the curved surface portion 20.21 of the control vane 16, and downstream there is a merged flow A3 in a straight direction. At this time, the upstream ends 14,15 of the guide walls are retracted outward from the nozzle tips 9, 10, respectively, so that the flow A1. A2 is the guide wall 12
．． The above-mentioned straight flow A3 is realized without adhering to 13.

Next, as shown in FIG. 3, the control blade 16 is rotated clockwise.

Flow B flowing into the inlet section 4. For example, the flow is split into two streams B1B2 by the head 9 of the control vane 16 near the outlet of the nozzle 7.8. The flow B1 is directed to the right by the nozzle upstream (till), but since the curved surface portion 20 of the control vane 16 is inclined to the left, the flow B1 is directed toward the guide wall 12 on the downstream side of the nozzle 7. The flow becomes attached to the guide wall 12.

On the other hand, the flow B2 arrives at the control vane 160 curved surface 1 as a flow with a tendency toward the left by the nozzle 8,
On the downstream side, it merges with flow B1.

Due to the above state, at the outlet portion 11, the flow as a whole becomes a flow B3 that is deflected to the left.

FIG. 4 shows that the control R16 is further rotated clockwise to control the control blade 1.
6 is oriented in the direction of the flow emanating from the nozzle 7.8.

The central portion of the flow flowing into the inlet portion 4 is formed through the through groove 22.
It flows out further and becomes a straight flow C5. The other part of the inflow flow is divided into two by the curved surface part 20 of the control blade 16, and the flow C
1 and 02. Flows C1 and C2 are each directed inwardly by nozzles 7.8, but the curved surface 20 in the control vane 16 is directed to the left for flow C1 and to the right for flow C2. To direct each flow to a guide wall 12.
Head to 13. In this case, the streams C1 and C2 are separately attached to the guide wall 12.13, and the width of the jet stream is smaller than that in the case where they are merged and maintained attached to the guide wall as shown in FIG. The guide wall 1 is stronger than in the case of Fig. 3.
2 or 13 is achieved. Thus, the flows C1 and C2 are respectively guided by the guide wall 12.1.
Since the flow C3°C4 maintains adhesion at the downstream end dimension of 3, a wide-angle branched flow state can be obtained.

Although the above operation shows the case where the control vane 16 is rotated clockwise, even when the control vane 16 is rotated counterclockwise from the state shown in FIG. Later, it is possible to achieve a straight flow and a wide-angle branched flow.

Effects of the Invention As shown above, in the present invention, curved guide walls are provided on both sides of the flow on the downstream side of the nozzle, and the nozzle exit
Nearby, a semi-elliptic control vane with a through groove in the short axis direction is arranged, so in addition to wide-angle deflection of a single flow, it is possible to achieve blowout conditions of straight flow and wide-angle branch flow. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of a flow direction control device based on the present invention, and FIGS.
This is a cross section taken along line A-A in the figure, showing different flow states. 1... Flow direction control device, 7, 8... Nozzle, 12.13... Guide wall, 14.15...
. . . Upstream end of guide wall, 16 . . . Control vane, 17.
18... shaft, 22... through groove. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 4 0゜

Claims (1)

[Claims] a nozzle that directs the flow inward; a pair of guide walls disposed downstream of the nozzle and formed so that the flow path gradually expands toward the downstream; a control blade that is rotatable at the center, and upstream ends of the pair of guide walls are located outward from the nozzle;
The control vane has a cross-sectional shape of an elliptical shape and has a through hole with a rectangular cross section in the short axis direction, and the rotation of the control vane directs the flow to only one side of the guide wall. A flow direction control device configured to cause adhesion to or adhesion to both sides and formation of a straight flow.