JPS604365B2 - flow direction control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION By controlling the upstream flow of the negative pressure control element using a control plate, the depth can be increased, the deflection angle can be increased, and the angle of deflection can be adjusted arbitrarily by controlling the rotation angle of the control plate. It is an object of the present invention to provide a flow direction control device that can perform a swing operation within a set blowout deflection angle range.

FIG. 1 shows a conventional flow direction control device.

The flow direction control device main body 1 is composed of a nozzle 2, a control plate 3 that rotates with a shaft 4 in the center, a guide wall 5, and a member 6 that deflects a part of the flow from the nozzle 2 toward the guide wall. . The flow flowing in the direction of the arrow is deflected by the control plate 3, and when it adheres to the side wall 5, it is largely deflected and blown out. At that time, a part of the flow that hits the deflection member 6 is deflected toward the guide wall, which serves to promote the attachment of the entire flow to the side wall 5. The state of deflection will be explained in detail below.

First, when the control plate 3 is oriented horizontally, the flow is not deflected by the control plate and is blown out horizontally. A portion of the flow that hits the deflection member 6 is deflected downward (in the direction of the guide wall) and pushes the entire flow downward, so that the entire flow is blown out with a slight downward deflection. If the control plate 6 is then tilted slightly downward, the flow is directed downward by the control plate and impinges on the guide wall 5, so that it adheres to the guide wall 5. As before, the flow that hits the deflection member 6 tends to deflect the entire flow downward, so that the entire flow is blown out with a larger downward deflection due to adhesion to the guide wall 5. The greater the inclination of the control plate 3, the better the adhesion of the flow to the guide wall 5, and therefore the larger the blowout deflection angle. In other words, it can be said that the deflection angle increases in proportion to the rotation angle of the control plate 3. As described above, since the flow deflected by the control plate is largely deflected by attaching it to the guide wall, the rotation angle of the control plate may be as small as 4 degrees, and the change in air flow resistance due to deflection is also possible. It had the advantage that it rarely occurred. Further, since the angle of deflection can be made larger due to the action of the deflecting member 6, the dimensions of the guide wall 5 can be reduced, which has the advantage that it can be done in a smaller space. However, with this conventional device, when it is desired to make a swing motion to increase comfort and efficiency, it is necessary to swing the control plate 3, which requires a certain amount of force and a complicated mechanism. There was a problem. The present invention eliminates the above-mentioned conventional drawbacks, and includes one nozzle with an aperture;
A guide wall provided in a gradually expanding shape downstream of the nozzle; a deflection member protruding from a surface of the nozzle facing the guide wall toward the guide wall in a direction substantially perpendicular to the flow direction; A control plate that rotates around an axis to control the flow line state is provided, and a guide wall is arranged so that the flow follows the guide wall due to a change in the flow direction at the nozzle outlet, and the nozzle and the guide wall are A control port is provided between the nozzle and the nozzle, and the flow direction at the nozzle outlet can be changed by opening and closing the control port. It is.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings FIGS. 2 to 7.

FIGS. 2 and 3 are cross-sectional views of the present invention, FIG. 4 is a three-dimensional configuration diagram, and FIG. 5 is an example of the application to a ceiling-suspended heat pump.

In FIG. 2, the flow direction control device main body 1 has a nozzle 2 having a restriction (the upper part 2' of the nozzle 2 is provided to increase the deflection angle, but even without this, the operation will be improved). A control plate 3 is provided near the nozzle 2 and rotates around an axis 4 to control the flow line state of the fluid. a gradually expanding guide wall 5 arranged so that the flow follows the guide wall 5; a deflecting member 6 protruding from the surface of the nozzle facing the guide wall 5 toward the guide wall 61 at a substantially right angle to the direction of the flow; /Zuru 2 and guide wall 5
The control port 7 is arranged between the control port 7 and the control port 7, which is opened and closed to the atmosphere by a closing plate 81.

In FIG. 4, the shaft 4 is supported by holes 10a and 11a provided in an upper lid 10 and a lower lid 11. 1
Reference numeral 2 represents an intermediate plate, and 13a represents a control port passage □ provided in the bottom lid 13, which communicates with the control port 7 and is opened and closed by a closing plate 8.

The closing plate 8 rotates in conjunction with the windmill 17, and its rotational speed can be arbitrarily changed by the reduction gear part 18. The wind to the windmill is controlled by a flow closure plate 15. The flow closure plate 15 rotates about a fixed shaft 16 and controls the wind to the windmill 17 by displacement of a cam 14 inserted into the shaft 4.
The shaft 4 is configured to be rotated by a rotary dial 9. That is, the control plate 3 and the cam 14 are configured to move simultaneously by rotating the dial 9. In FIG. 5, 1 is the main body of the flow direction control device, 19 is a heater, a two-way heat exchanger, and 21 is a sirocco fan. Although the control plate 3 is located on the upstream and downstream sides of the nozzle in the figure, the effect can be obtained whether the control plate 3 is located entirely on the upstream side or downstream side. Next, the operation will be explained.

The flow entering in the direction of the arrow in FIG. 3 is made to adhere to the guide wall 5 by the control plate 3 and is largely deflected by the action of the deflection member 6. That is, similar to the conventional example, the advantages of small dimensions and a large deflection angle still exist. Next, the swing function which is the object of the present invention will be explained.

In FIG. 2, the control plate 3 is fixed in a certain position. When the closing plate 8 is opened to allow the control port 7 to communicate with the atmosphere, the flow is blown out at a deflection angle determined by the angle of the control plate, as in the conventional case. Next, when the closing plate 8 is closed to seal the control port 7 from the atmosphere, the pressure inside the control port 7 becomes a negative pressure due to the entrainment action of the flow from the nozzle, and the flow is drawn in. The drawn flow has the same effect as tilting the control plate, so it adheres better to the guide wall and the deflection angle increases. Therefore, by opening and closing the closing plate 8, the deflection angle of the flow can be increased or decreased. That is, a swing motion is performed. Figure 6a,
7b and FIGS. 7a and 7b show the difference in deflection angle due to opening and closing of the closing plate 8 when the angle of the control plate 3 is horizontal and slightly tilted downward, respectively. In FIGS. 6a and 6b, when the control plate 3 is horizontal, when the closing plate 8 is open, the flow is slightly deflected downward due to the influence of the deflection member 6, but it does not adhere to the guide wall 5. . When the closing plate 8 is closed, the flow is attracted by the negative pressure in the control port 7, adheres to the guide wall 5, and flows out. In FIGS. 7a and 7b, if the control plate 3 is tilted slightly downward, when the closing plate 8 is open, the flow will be lower than the control plate 3.
It blows out at a deflection angle that corresponds to the inclination of the air. When the closing plate 8 is closed, the negative pressure in the control port 7 improves the adhesion to the guide wall 5 and increases the deflection angle. From the above results, by opening and closing the closing plate 8, it is possible to perform a swing operation within the range limited by the deflection angle set by the control plate 3. In FIG. 4, when the dial 9 is rotated, the control plate 3 is rotated to change the blowing direction.

Also, since the cam 14 also moves with the dial 9, the dial 9
The cam 14 is rotated to operate the rotation of the windmill 17.
By stopping, the rotation of the closing plate 8 can be activated and stopped. The operation and stopping of the closing plate 8 can be changed arbitrarily depending on the shape of the cam 14, but in this case, the range in which the dial makes a half turn, that is, the range in which the control plate 3 makes a half turn, the closing plate 8 rotates, and the remaining half turn. The structure should be such that it stops. On the other hand, since the upstream and downstream sides of the control plate 3 are symmetrical, the same blowing angle can be obtained even if the control plate 3 is rotated by 180 degrees. Therefore, with such a configuration, two states can be obtained: a case where the closing plate 8 is rotating and a case where the closing plate 8 is not rotating at the same blowing angle. When the closing plate 8 is rotating as described above, a swing operation is performed, and when it is not rotating, the air is blown out at the deflection angle set by the control plate 3. FIG. 5 shows a case where the present invention is applied to a ceiling-suspended heat pump. The flow sucked in from the outside air by the Sirocco Afso 21 passes through the heat exchanger 20 and the heater 9, and enters the flow direction control device 1 of the present invention to control the blowing direction. The blowing direction can be set in any direction by rotating the dial and rotating the control plate 3. If you want to perform a swing motion, turn the dial 1800 revolutions, and the swing motion can be performed within the same blowing direction range. This swinging motion is particularly effective for cooling. In other words, during cooling, it is better to be exposed to the wind intermittently than to be constantly exposed to the wind, and the swing action has the effect of allowing a wider range of people to be exposed to the wind. Furthermore, in the present invention, the range of swing motion can be changed arbitrarily by rotating the control plate 3 by rotating the dial, so the swing can be changed depending on the number of people in the room and the distribution of the people. This is possible and has great environmental effects. Since the flow direction control device of the present invention uses a method of deflecting the flow by using the adhesion of the flow to the guide wall, there is almost no change in the air flow resistance due to deflection, and the function of the deflection member 6 makes it possible to deflect the flow from the guide wall. In addition to the above conventional effects, the blowing direction can be arbitrarily selected by operating the control board, and the swing operation can be started and stopped in any blowing direction. It is possible to swing with the slight force of opening and closing the closing plate, and the swing operation can be performed even in a place where there is no electricity and only wind is present. When applied to air conditioners, it is possible to switch the blow direction and swing motion with a single dial operation, and the swing range can be changed arbitrarily depending on the number and distribution of people in the air-conditioned room. It has excellent effects in that it can be held in a small space, and even when only wind is blown out, such as from a duct outlet, it is possible to perform swing motions and other motions in the same way.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view showing a conventional flow direction control device;
3 and 3 are cross-sectional views showing a flow direction control device according to an embodiment of the present invention, FIG. 4 is an exploded perspective view of the same flow direction control device, and FIG. 5 is an example of application to a ceiling-suspended heat pump. FIGS. 6a and 6b and 7a and 7b are sectional views showing the operating state, respectively. 1. ．． ．． Flow direction control device main body, 2... nozzle, 3.
... Control board, 4... Axis, 5... Guide wall, 6... Deflection member, 7... Control port, 8... Control port closing plate, 9... Dial, 14... Cam, 15 ...flow closing plate, 17.
...Windmill, 18...Reduction gear part. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1. One nozzle having a restriction in the flow direction;
one guide wall provided in a gradually expanding shape downstream of the nozzle; a deflection member protruding from a surface of the nozzle opposite to the guide wall toward the guide wall in a direction substantially perpendicular to the flow direction; A control plate that rotates around an axis to control the line condition is provided, and a guide wall is arranged so that the flow follows the guide wall due to a change in the flow direction at the nozzle outlet, and a control plate is provided between the nozzle and the guide wall. A flow direction control device having a control port provided in the nozzle and configured to change the flow direction at the nozzle outlet by opening and closing the control port. 2. The flow direction control device according to claim 1, wherein means for rotating the control plate and means for opening and closing the control port are provided in communication with each other.