JPS63204060A - Flow deflecting device - Google Patents

Abstract

PURPOSE:To enable a dispersed condition to be realized while keeping a flow deflecting effect under a biasing shielding member, clarify the direction of flow through the dispersion member and eliminate a direction indicating means by a method wherein the flow deflecting member is composed of the dispersion member of which inclination angle to the axis of a flow passage is varied with axial movement of the biasing shield member and a control device for controlling the direction of the dispersion member is provided. CONSTITUTION:In case that a biasing shield member 13 is moved to the upper-most upstream side, a dispersion member 16 is abutted against a second engaging member 23 and its rotational angle alpha becomes about 90 deg. and a flow outputted from a nozzle is directed upwardly as viewed in the figure. The flow is adhered to the entire circumference of a guide wall 12 under the biasing action of the dispersion member and then it shows a dispersion state in which the flow is uniformly blown in an entire lateral direction as viewed in the figure. A blowing air temperature sensor 51 is fixed to the dispersion member 16, temperature of the air blown from a nozzle 10 is detected. If the temperature is lower than a predetermined temperature, the dispersion member 16 is made substantially horizontal and in turn if the value is higher than the set value, a switch SW2 of a motor 17a is turned ON and so the dispersion member 16 can be inclined.

Description

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

BACKGROUND OF THE INVENTION As a prior art to the present invention, there is Japanese Patent Application Laid-Open No. 60-30808. This configuration and operation are shown below.

As shown in Figures 6 and 7, 1 is a flow path that guides the flow sent from a blower, etc., 1a is a cylinder that forms the flow path, 1b is the axis of the flow path, and 2 is the flow path. A circular nozzle having an aperture 3 from the entire circumference with respect to the axis 1b, 4 is a guide wall formed to surround the nozzle /I/2 on the downstream side of the nozzle /L/2, The shape gradually expands starting from the exit. A bias shield 5 for blocking the bias flow generated by the aperture 3 is provided upstream of the nozzle /I/2.

This rotates around a rotating shaft 6, is located outside the nozzle near the exit of the nozzle/l/2, and has an arc-shaped cross section.

In the above configuration, the operation will be explained using FIGS. 6 to 9. First, as shown in Fig. 6, the bias shield 5 and the nozzle lv
A case where 3 and 3 are almost in close contact will be explained.

In this case, part of the flow F■ entering the direction of the flow path is
This results in a bias flow FB. 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 shield 5.

(It is blocked by the bias shield.) Therefore, the main stream FA is directed toward the right guide wall by the bias flow FB from the left side, and as a result, it adheres to the right guide wall and is deflected to the right side by a wide deflection angle θ. . The deflection angle θ at this time can be arbitrarily set depending on the shape of the guide wall 4. FIG. 7 shows the case where the bias shield 5 is rotated to the left.
Flow FA is deflected widely to the left.

Next, a case where the bias shield 5 is moved to the position shown in FIG. 8 by rotating the rotating shaft 6 will be described.

In this case, a gap is created between the bias shield 5 and the aperture 3. During this time, a flow FBL opposing the bias flow Fb is generated from iD, weakening the force of FB. As a result, the adhesion force of the combined flow FA to the guide wall 4 is weakened, and the deflection angle of the blown flow becomes smaller than in the case of FIG. 7. The deflection angle increases in inverse proportion to the size of the gap.

Next, a case where the bias shield 5 is moved to the position shown in FIG. 9 will be described.

In this case, the flow FBL generated from the gap 1iD has almost the same strength as the bias flow FB, and the combined flow FA is blown out to the front without being deflected.

As described above, by operating the rotating shaft 6 to rotate or move the bias shield 5 up and down, the adhesion position and strength of the flow to the guide wall are changed, and the blowing direction of the flow is changed from the wide-angle deflected position. It can be set in any three-dimensional direction up to the front.

Problems to be Solved by the Invention In the above-mentioned prior art, it is possible to send a bulk flow to an arbitrary position, but it is not possible to blow the blowing flow uniformly in all directions almost perpendicular to the axis of the flow path. It is not possible to achieve a state of dispersion, that is, a state of dispersion.

The present invention solves these conventional problems, and makes it possible to realize a distributed state while making use of the conventional features, and to uniformly air-condition the entire room to be air-conditioned.

Means for Solving the Problems In order to solve the above problems, the flow deflection device of the present invention comprises:
a nozzle provided at the outlet of the flow path and having a restriction from the entire circumference with respect to the axis of the flow path; a guide wall that gradually expands downstream from the nozzle; and a guide wall disposed on the upstream side of the nozzle; a bias shield that is movable in the axial direction of the flow path and rotatable around the axis of the flow path, and that blocks a part of the flow that is narrowed by the throttle and directed toward the axis of the flow path;
disposed downstream of the nozzle and rotatable about the axis of the flow path in conjunction with rotation of the bias shield; A dispersion body whose inclination angle with respect to an axis changes, and a control device for controlling the direction of the dispersion body is provided.

Effect: With the above-described configuration, the angle of the dispersion with respect to the axis of the flow path changes according to the movement of the bias shield, and when the bias shield moves significantly toward the upstream side, the dispersion changes along the axis of the flow. The air flow is almost perpendicular to the air, and the blowing flow becomes dispersed. Also, the bias shield is closer to the nozzle,
When the blowout flow is deflected, the inclination angle of the dispersion body changes according to the deflection state, and the dispersion body rotates in the same direction as the bias shield to perform a flow rectification action.

Example Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2, 7 is a flow path, 8 is a wall forming the flow path, 9 is an axis of the flow path, 10 is a nozzle having a throttle 11, and 12 is gradually expanded toward the downstream side from the nozzle 10. The guide wall 13 is a bias shield that blocks a part of the flow toward the channel axis 9 generated by the aperture 11, and has a substantially arc-shaped cross section. The bias shield 13 is connected to an outer shaft 15 by a support shaft 14 at the center of the shaft. On the downstream side of the nozzle 1o, near the guide W12, there is a disc-shaped dispersion body 16 (in the figure, it is shaped like an airfoil to follow the flow).
is arranged, and is attached to the downstream end of the outer shaft 15 so as to rotate about the dispersion shaft 17. The dispersion axis 17 is disposed substantially perpendicular to the support axis 14 of the bias shield 13 so that the dispersion body 16 rotates within a plane formed by the support axis 14 and the channel axis 9. Further, the outer shaft 15 moves in the flow direction with respect to the inner shaft 15a, and its movement is controlled by a cam 18 rotated by a motor 17a fixed to W8. On the other hand, the inner shaft 16 is rotated by a motor 17b fixed to the wall 8, and the rotation is caused by a projection 19 provided on the inner shaft 16 and a groove 2 formed on the outer shaft 15.
0 to the outer shaft, so that the inner and outer shafts rotate simultaneously. Further, 21 is a disk fixed to the outer shaft 16, which transmits the displacement of the cam 18 to the outer shaft.

A first locking member 22 is provided at the downstream end of the inner shaft 16,
On the other hand, a second locking member 23 is provided between the bias shield 13 and the dispersion body 16.

Further, the dispersing body 16 is provided with a rotation groove 24 for rotating about 90 degrees along the outer axis 15. A return spring 25 is provided between the dispersion body 16 and the outer shaft 15, and is normally biased so that the dispersion body 16 faces in substantially the same direction as the direction of movement of the outer shaft.

In the above configuration, the operation will be explained below. Figure 2 ('
b) is a case where the bias shield 13 is moved to the upstream side,
As shown in the prior art, the flow from the nozzle/klo is not deflected and flows upward in the diagram.

At this time, the dispersion 16 is directed substantially in the direction of the axis 9 of the channel by the return spring 16. In other words, the angle α between the axis of the flow path and the center line 16a of the dispersion body 16 is close to 0''. Therefore, the flow coming out of the nozzle is not affected by the dispersion body and flows upward as it is. .

Next, as shown in FIG. 2(c), when the bias shield 13 is brought into close contact with the nozzle /l/10, the flow is deflected to the right as described in the prior art section. At this time,
The dispersion body 16 moves downstream via the outer shaft 15 at the same time as the bias shield. A first locking member 22 fixed to the inner shaft 15a is provided on the downstream side, and when the dispersion body 16 moves downstream, it comes into contact with this first locking member 22, and the dispersion body Rotates around axis 17. The rotation angle α is set so that the position of the first locking member 22 is approximately the same as the tangential angle β of the guide wall 12 with respect to the axis of the flow path when the bias shield 13 is in the position shown in FIG. is set. In this state, the flow exiting from the nozzle 10 and deflected to the right side of the figure has the dispersion body 16 facing in the direction in which the flow is deflected, which promotes adhesion to the guide wall and improves the deflection characteristics. 〇Also, at the intermediate position between Fig. 2 Φ) and Fig. 2 (c),
Both the deflection and the angle of the dispersion body 16 are at intermediate positions, and a linear deflection operation is performed. The setting of the outer shaft 15 is the motor 17a.
The rotation of the cam 18a causes vertical movement, which moves the outer shaft 15 via the disk 21. That is, by controlling the rotation of the motor 17a, the setting of the outer shaft 15, that is, the position and angle of the bias shield 13 and the dispersion body 16 can be controlled. Further, by rotating the motor 17b, the spindle 15a is rotated. This rotation is transmitted to the outer shaft by the protrusion 19 provided on the inner shaft and the groove 20 provided on the outer shaft. and bias shield 1
3 and the dispersion body 16 are rotated simultaneously. That is, by controlling the rotation of the motor 17b, the rotational direction of the flow can be arbitrarily set.

Next, the case where the bias shield 13 is moved to the most upstream side as shown in FIG. 2(d) will be described. In this case, the dispersion body 16 comes into contact with the second locking member 23, and the rotation angle α is about 90'. In this state, the flow coming out of the nozzle is directed upward in the diagram, but the flow adheres to the entire circumference of the guide wall 12 due to the bias effect of the dispersion body. As a result, the air is blown out evenly in all horizontal directions in the figure, resulting in a so-called dispersed state. As described above, by configuring the dispersion body 16 to move in relation to the movement of the bias shield 13, it is possible to realize the dispersion operation while maintaining the flow deflection operation by the bias shield 1a. Become. The control device having the above configuration will be explained.

51 in FIG. 3 is an outlet temperature sensor, and R2, R3, and R4 are resistors. The partial pressure v1 of the outlet temperature sensor 51 and R2 is input to the comparator 52, and the other input is input the partial pressure v2 of R3 and R4. The comparator 52 compares and determines the voltages of vl and v2, and if the temperature of the outlet temperature sensor 51 rises, vl increases and the relay coil/L'53 turns on.

This turns relay SW2 ONt and motor 17a operates.

Next, a control device for controlling the above configuration will be explained with reference to FIG. Attach the blowout temperature sensor 51 to the dispersion body 16,
The temperature of the wind blown out from the nozzle/L'10 is detected, and if the set temperature is below the set value, the dispersion body 16 is made almost horizontal, and if it is above the set value, the switch SW2 of the motor 17a is turned on.
Thus, the dispersion 16 can be tilted.

Effects of the Invention As described above, the flow deflection device of the present invention provides the following effects.

(1) A distributed state can be realized while maintaining the flow deflection effect by the bias shield.

(2) In the prior art, there was no means to indicate the direction of the flow, so some kind of direction indicating means was required, but in the present invention, the direction of the flow becomes clear due to the dispersion, and no means for indicating the direction is required.

■ Cold draft can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of a flow deflection device according to an embodiment of the present invention, FIG. 2 6) to (d) are sectional views showing different operating states of the same device, and FIG. 4 is a flowchart showing the operation details of the device, FIG. 5 is a time chart showing the deflection operation status of the device, and FIGS. 6 and 7 are diagrams of conventional flow deflection devices. Partially cutaway perspective view and perspective view of the shield, Figures 8 to 11
The figures are cross-sectional views showing different operating states of the same device. 7...Flow path, 10...Nozzle, 12.
...Guide wall, 13...Bias shield,
16...Dispersion element, 51...Blowout temperature sensor, 52...Comparator, 53...Relay coil. Name of agent: Patent attorney Toshio Nakao and 1 other person7-
Channel? - Flow path axis 10 m - Nozzle 11 - Restriction 12 - Stem inner wall 13° - Bias shield 16 - Dispersion Fig. 1 1'/b Fig. 2 Fig. 74 Fig. 5 Fig. 6 Figure 7 Figure 8 Figure 10 Figure 8 Figure 11

Claims (1)

[Claims] a nozzle provided at the outlet of the flow path and having a restriction from the entire circumference with respect to the axis of the flow path; a guide wall that gradually expands downstream from the nozzle; and a guide wall disposed on the upstream side of the nozzle; a bias shield that is movable in the axial direction of the flow path and rotatable around the axis of the flow path, and that blocks a part of the flow that is narrowed by the throttle and directed toward the axis of the flow path; a downstream disposed rotatable about the axis of the flow path in conjunction with rotation of the bias shield, and an inclination with respect to the axis of the flow path in conjunction with the axial movement of the bias shield; A flow deflection device comprising a dispersion whose angle changes, and a control device for controlling the inclination angle of the dispersion, the control device being tilted from a substantially horizontal direction downwardly or from a downward direction toward a substantially horizontal direction. a driving means, a temperature detecting means for detecting the airflow temperature at the outlet of the flow path or a refrigeration cycle temperature, a determining means for determining whether the detected temperature of the temperature detecting means has reached a set temperature; A flow deflection device comprising a drive means for controlling the direction of the dispersion based on a determination output.