JPS6135404B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a flow direction control device that disperses and blows out the air flow from an air conditioner, etc., and that can automatically and manually deflect the air flow, thereby achieving a comfortable air conditioning effect. The purpose is to obtain.

BACKGROUND ART Conventionally, in order to equalize the indoor temperature distribution, air conditioners and the like blow air in a horizontal direction during cooling and downward during heating. In this case, during heating, the air conditioning flow is blown downward, which may cause wind to hit the human body. At this time, if the air volume is small, it will not feel so uncomfortable,
When the air volume and speed are large, the user feels extremely uncomfortable. On the other hand, experimental data on indoor temperature distribution shows that by blowing only a certain amount of air downward and blowing the rest horizontally, you can obtain a temperature distribution that is almost the same as when the entire airflow is blowing downward. It has been confirmed that Therefore, by blowing some air downward and the other air horizontally, we can reduce the amount of downward air, reduce the discomfort caused by the wind, and improve the temperature distribution in the room. In order to obtain the effect of no change, it has been desired to have a flow direction control device that can disperse the blowing flow into horizontal blowing and downward blowing. One example of this is a method in which two air outlets are provided and a fan is attached to each to blow the air separately. However, in this method, there are two air outlets.
This means that there are only two fans, and the number of parts associated with each one increases, resulting in a complex structure and high cost. Another example is to forcibly separate the flow into horizontal blowing and downward blowing using a damper. However, this method has the drawback that, because the flow is forcibly separated and deflected, flow resistance increases and air volume decreases, making it impossible to obtain a sufficient air conditioning effect.

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In view of the above points, the present invention has one air outlet,
Moreover, the object is to provide a flow direction control device that can blow horizontally and downwardly with almost no change in air flow resistance for separation.

First, in order to make it easier to understand the present invention, the prior art will be explained.

1 and 2 show cross-sectional views of a flow direction control device to which the prior art is applied. Figure 1 shows the case where the flow is blown horizontally, and Figure 2 shows the case where the flow is blown downward. First, to explain the case of horizontal blowing with reference to Fig. 1, the control plate 3 faces horizontally, 1 is the inlet of the flow, 3 is the control plate that rotates around the axis 2, and 4 is the control plate for deflecting the flow. This is a guide wall provided in a gradually expanding shape, and in the figure, it is provided only on the lower side, but if upper deflection is required, it may be provided on the upper and lower sides. The flow entering the inlet 1 is divided into a flow Fu above the control plate 3 and a flow Fd below the control plate 3. The upper flow Fu flows straight ahead. Since the lower flow Fd tries to merge with the upper flow Fu, it does not head toward the guide wall 4 side but blows out in the straight direction, and the combined flow of Fu and Fd blows out in the horizontal direction.

Next, the case of downward blowing will be explained with reference to FIG. 2. The control plate 3 faces slightly downward, and the flow entering the inlet 1 is divided into an upper flow Fu and a lower flow Fd. Since the control plate 3 is directed slightly downward, the lower flow Fd is directed in a direction along the guide wall 4, and as a result, flows adhering to the guide wall 4 due to the Coanda effect. On the other hand, the upper flow Fu has a higher velocity and momentum than the upper flow Fu because the lower flow Fd is constricted by the control plate 3 and the guide wall 4 as shown in the figure. Side flow Fd
However, since the lower flow Fd flows adhering to the guide wall 4, Fu and Fd merge and flow together adhering to the guide wall 4 due to the Coanda effect. As a result, the flow blows downward. Also, by changing the angle of the control board 3,
Since the degree of adhesion of the flow to the guide wall 4 changes,
The blowing direction of the flow changes. Therefore, by changing the angle of the control plate, the flow can be blown out in any direction. Further, as shown in FIG. 3, when a bias protrusion is provided, the merging into Fu and Fd is promoted and the downward deflection becomes larger.

The flow is deflected by the above-mentioned operation, but in order to deflect the flow by adhesion to the guide wall 4, that is, by the Coanda effect, the flow is forced by a damper or the like. Unlike the case of bending, the flow resistance hardly changes when the flow is deflected. Furthermore, since the flow is largely deflected even if the rotation angle of the control plate is small, it has the advantage that the direction of the flow can be easily controlled.

The present invention takes advantage of the above features.
The present invention includes one inlet into which a flow enters, and at least one inlet provided in a gradually enlarged shape downstream of the inlet.
A control plate having two guide walls and rotating about an axis to control the flow line state of the fluid is provided, and the flow is controlled by the guide wall due to a change in the flow state controlled by the control plate. A guide wall is arranged along the axis, and the control plate is separated into a plurality of pieces on one axis. The control plate is constructed so that it can be rotated separately from the part of the control plate by a drive mechanism provided elsewhere. With this configuration, the flow is deflected to different angles depending on the inclination angle of each separated control plate. Examples are shown below in FIG. 4 and below. In Fig. 4, 1 is a flow inlet, 3a, 3b, and 3c are control plates that rotate around shaft 2, and among these, 3a and 3c are fixed to shaft 2, and the rotation is the same as that of shaft 2. Rotate at an angle. On the other hand, as shown in FIG. 5, 3b is configured to rotate arbitrarily around axis 2,
The tilting direction is determined by a solenoid 7 via a buffer spring 6. Further, the control plate 3b is locked by a return spring 8 so as to tilt in the same direction as the other control plates 3a and 3c when the restriction by the solenoid 7 is released. In this case, the locking force of the return spring 8 is set to be smaller than the pulling force of the solenoid 7, so that the control by the solenoid 7 works preferentially. On the other hand, a solenoid 11 and a manual lever 12 are provided at the extended end of the shaft 2 via a lever 9 and a buffer spring 10.
The direction of rotation of the shaft 2 is controlled by this solenoid 11. Moreover, if the restriction of the solenoid 11 is released, the shaft 2 can be moved in any direction using the manual lever 12.
can be rotated. When the solenoid 11 is activated, the control plates 3a and 3c
and 3b face horizontally and operate solenoid 7〓〓〓〓
In this case, only the control plate 3b is configured to face slightly downward. FIG. 6 shows a configuration diagram when this flow direction control device is applied to a wall-mounted heat pump. 13 is a casing, 14 is a filter, 15 is a heat exchanger, 16 is a fan, 17 is a stabilizer, and 18 is a rear guider so that the flow exiting the fan 16 enters the inlet 1 of the flow direction control device of the present invention. It is configured.

The operation of the above configuration will be explained below. In FIG. 4, the flow entering inlet 1 is controlled by control plates 3a and 3.
The streamline state, that is, the flow direction can be changed by b and 3c, respectively. FIG. 4 shows a state in which the flows are separated. That is, the solenoids 7 and 11 are in operation at the same time, the control plates 3a and 3c are oriented horizontally, and the control plates 3b are oriented slightly downward. In this state, the flow whose streamline state has been changed by the control plates 3a and 3c is
It blows out horizontally as in the case of the prior art shown in the figure. On the other hand, the flow whose streamline state has been changed by the control plate 3b is blown out downward as in the case of the prior art shown in FIG. In other words, the flow is separated into horizontal direction and downward direction. This separation ratio can be changed arbitrarily by changing the ratio between the width of 3a+3c and the width of 3b. As explained in the case of the prior art, flow separation in this state can be performed with almost no change in flow resistance, and therefore can be performed with almost no change in air volume. Further, since only a slight rotation of the control plates 3a, 3b, and 3c is required, control can be performed using a solenoid as shown in FIG. 4. Furthermore, when the solenoid 7 is deactivated, the direction of the control plate 3b becomes the same as the direction of the control plates 3a and 3c due to the return spring 8 as shown in FIG. 5, so that the entire flow is made horizontal. Alternatively, it is possible to blow out downward. Furthermore, when both the solenoids 7 and 11 are deactivated, the blowing direction can be changed arbitrarily using the manual lever 12. The operation when this flow direction control device is applied to a wall-mounted heat pump is shown in FIG. The flow through the filter 14, the heat exchanger 15 and the fan 16 enters the inlet 1 of the flow direction control device of the invention.
The flow that enters the inlet 1 is blown out with its direction controlled as described above. That is, during cooling, horizontal blowing is performed, and during heating, horizontal blowing and downward blowing are distributed. Also, if the solenoid is not activated,
It can be blown in any direction using a manual lever. In addition, since control is possible with a low-force drive mechanism such as a solenoid, it is easy to automatically control the blowing direction according to the blowing temperature by detecting the blowing temperature using a thermistor, etc. It becomes possible.

As described above, the flow direction control device of the present invention has a guide wall that is provided in a gradually expanding shape, rotates around the axis, and is separated into a plurality of pieces, some of which rotate at the same time as the axis. However, since the rest is comprised of a control plate configured to be rotated by a separate drive mechanism, it has the following effects.

(1) The configuration is simplified because the flow can be separated into the horizontal direction and the downward direction with one outlet.

(2) Since the deflection utilizes the Coanda effect, the flow can be sufficiently deflected even if the rotation angle of the control plate is small, and there is almost no decrease in air volume due to deflection.

(3) Since the flow direction can be controlled by only slightly rotating the control plate, it can be controlled even with a drive mechanism with a small force such as a solenoid. Automatic control is therefore facilitated.

(4) When the force of one solenoid is released, all the control plates are configured to face the same direction, so the separation of the flow and its release are performed by the solenoid.
This can be easily done by simply turning ON and OFF.

(5) When all solenoids are de-energized,
All control boards face the same direction, and the control board is configured so that it can be rotated in any direction using a manual lever.
Turn on the solenoid to switch between manual operations,
This can be easily done by simply turning it off.

Therefore, according to the flow direction control device of the present invention,
With a simple configuration, it is possible to separate the flow with almost no reduction in air flow, and it is possible to separate and release the flow and switch between automatic and manual operation using a small drive mechanism such as a solenoid.
It becomes possible to provide an air conditioning outlet that has a great air conditioning effect and easy operability because it can be turned on and off only.

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[Brief explanation of the drawing]

1, 2, and 3 are sectional views of a prior art flow direction control device, FIG. 4 is a perspective view of a flow direction control device according to an embodiment of the present invention, and FIG.
The figure is a partially enlarged perspective view of the vicinity of the control board, and FIG. 6 is a sectional view when the present invention is applied to a wall-mounted heat pump. 2... Axis, 3a, 3b, 3c... Control board, 4...
...Guidance wall, 7...Solenoid. 〓〓〓〓

Claims (1)

[Claims] 1. A system having an inlet into which a flow enters, and at least one guide wall provided in a gradually expanding shape downstream of the inlet, and having an axis as a center for controlling the streamline state of the fluid. A rotating control plate is provided, and the guide wall is arranged so that the flow follows the guide wall according to a change in the state of the flow controlled by the control plate, and the control plate is divided into a plurality of pieces on one axis. The control plates are separated, and some of the control plates rotate with the rotation of the shaft, and other control plates are rotated separately from the some of the control plates by a drive mechanism provided elsewhere, with the other control plates being rotated around the shaft. A flow direction control device characterized in that it is configured to be movable. 2. The flow direction according to claim 1, wherein when the force of the drive mechanism is released, the control plate rotated by the drive mechanism rotates in the same direction as the shaft. Control device. 3. The flow direction control device according to claim 1, wherein the drive mechanism is constituted by a solenoid.