JPS5953449B2 - Hot air machine - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a device for collecting heat by sending air such as a hot air blower.
To provide a device capable of widely collecting heat by hot air with a simple configuration and at a low cost.

Conventionally, in order to obtain a wider range of heat, a louver was used at the outlet of the hot air to change the direction of the air, either up or down or left and right.

However, most of these devices are mechanically constructed, have a large number of parts, are complicated to assemble, and must be rotated by a motor or the like in order to move the louver automatically.

The present invention solves these drawbacks.

Prior to detailed description of the present invention, a description will be given of the fluid deflection element itself used in the present invention.

In FIGS. 5a and 5l), a fluid deflection element called a control plate type is shown.

1 is a fluid deflection element body.

2 is an upstream chamber, which is defined by side walls 3 and 4 and end walls 5 and 6.

7.8 is a nozzle formed at the inner end of the end walls 5, 6.

The nozzle opening is rectangular. The nozzles 17.8 are arranged at equal dimensional positions from the end walls 5, 6, respectively.

Reference numeral 9 denotes a control plate disposed in the upstream chamber 2, which is a flow deflection means, and is supported so as to be rotatable about an axis 10 disposed on the axis of symmetry X-X of the fluid deflection element main body. There is.

Reference numeral 11.12 denotes a guide wall provided on the downstream side of the nozzle 7.8, which has an almost arc shape and is bent so that the width of the flow passage between the guide walls 11 and 12 gradually increases.

Note that the fluid deflection element main body is symmetrical about the center line XX, and the nozzle 7.8 is formed so that the upstream side has a quadrant shape.

Note that the control plate 9 is rotated manually via a drive mechanism or by a drive source such as a motor.

Next, in FIGS. 6a and 6l), a fluid deflection element called a negative pressure type is shown.

13 is a fluid deflection element body.

. 14 is an upstream chamber, side walls 15, 16 and end walls 1
It is divided into sections 7 and 18.

Nozzles 19 and 20 are formed at the inner ends of the end walls 17 and 18.

The nozzles 19, 20 are formed at equal distances from the side walls 15, 16, and have a cross-sectional shape of a quarter circle.

21.22 is a control chamber formed immediately downstream of the nozzle 19.20, with end walls 17, 18 and side walls 23, 24, respectively.
and end walls 17 and 18 and parallel walls 25 and 26, and control ports 27 and 28 are provided in side walls 23 and 24, respectively.
is drilled.

Note that openings 29 and 30 are formed on the fluid passage side surfaces of the control chambers 21 and 22, that is, on the surfaces facing each other.

33a and 33b are control ports 27. 28 is a control board arranged like a vine to open and close.

Reference numerals 31 and 32 denote guide walls extending downstream from the opening 29 and 30 of the control room 21 and 22. The new song is formed in an almost circular arc shape.

34 and 35 indicate the vertices of the guide walls 31 and 32, respectively.

The nozzle opening is rectangular.

The entire element body 13 is symmetrical with respect to the central axis XX in the fluid flow direction.

The control plates 33a and 33b are driven manually via a drive mechanism or by a motor or other drive source.

Next, the operation of the embodiments of each system shown in FIGS. 5 and 6 will be explained.

FIG. 5a shows the case where the control plate 9 is aligned with the symmetry center line XX.

In this case, the flow velocity vector at the nozzle exit is arrow b1
．． As shown in b2, since the entire flow is symmetrical,
The direction of the entire flow is the direction of the arrow ■.

FIG. 5 shows a case where the control plate 9 is rotated counterclockwise in the figure.

In this case, in the flow between the nozzle 8 and the control plate 9, the outermost flow velocity is as indicated by the arrow b3. b4, and the overall direction is in the direction of arrow J.

Furthermore, in the flow between the nozzle 7 and the control plate 9, the outermost flow velocity is b5. It becomes as shown by b6, and as a whole, it goes in the direction of the arrow.

The overall flow at the nozzle exit is in the direction of arrow J and the direction in which the flows in the direction of the arrow collide with each other.

This direction is to the right of the arrow 1 direction shown in FIG. 5a, and the nozzle exit flow is directed to the right as a whole.

That is, upstream of the nozzle 7.8, the flow is deflected.

When this flow is maximally deflected, at the guide wall 11,
A Coanda effect occurs and further deflection occurs.

In the embodiment shown in Fig. 5, if it is desired to deflect the flow to the left in the figure, the control plate 9 can be rotated by an arbitrary angle by rotating it clockwise in the figure, contrary to the case shown in Fig. 5. By stopping at this position, the flow is deflected to the left for the same reason as in Figure 5.

Note that by adjusting the rotation angle of the control plate 9, the blowing direction of air can be stabilized in any direction, and the blowing direction can be changed continuously.

Moreover, there is no self-reinforcing adsorption effect on the guide walls 11, 12.

Next, the operation of an embodiment of a fluid deflection element called a negative pressure type shown in FIG. 6 will be explained.

As shown in FIG. 6a, when the control ports 27, 28 are open, the nozzle exit flow velocity is as indicated by the arrow e1. As shown by e2, since the entire structure is symmetrical, the flow at the entire nozzle outlet is directed in the direction of the center line XX, that is, in the direction of the arrow N.

Now, as shown in FIG. 6, the control plate 33a is connected to the control port 2.
When 7 is closed, the inflow of air from the surroundings at the flow rate indicated by the arrow e2 is blocked.

Here, the nozzle 19.20 and the apex 34 of the guide plate
The dimension in the direction perpendicular to the center line XX with ゜35 is Se
If this dimension Se is set small, negative pressure will be generated in the control chamber 21 due to the flow rate e2.

That is, negative pressure is generated in the opening 29. Control room 21 and 22
The flow is deflected to the right by the pressure difference between the openings 29 and 30, but at this time, the flow is deflected to the right.
The width Wu is wider than the nozzle width W, and the nozzle 19.2
Since the thickness of the 5th 0
Similar to the system shown in the figure, the flow is from nozzle 19.20,
Deflection occurs from the upstream side.

The nozzle exit flow velocity is indicated by arrow e3. As shown in e4,
The flow velocity e4 has stronger straightness than the flow velocity e2.

Therefore, the entire flow at the nozzle outlet is directed in the direction of the arrow P, which is inclined by the angle r1 from the center line XX.

This flow causes a Coanda effect due to the guide wall 31,
further deflected.

In the method shown in FIG. 6, if it is desired to deflect the fluid flow to the left in the figure, the control plate 33a is moved away from the control port 27, completely opposite to the case shown in FIG. Mouth 2
7 and close the control port 28 using the control plate 33b.

Note that by adjusting the opening degrees of both control ports 27 and 28, the deflection direction of the fluid can be stably determined in any direction between both guide walls 31 and 32, and the deflection angle can be continuously changed. You can also do that.

Furthermore, since the flow has already been deflected on the upstream side of the nozzle and is deflected by the Coanda effect of the guide wall, the overall deflection angle can be increased.

The present invention uses the fluid deflection element as described above, and examples thereof will be described below with reference to FIGS. 1 to 4.

. FIG. 1 shows an embodiment of the hot air machine of the present invention, in which air can be blown in any direction from four discharge ports A, B, C, and D at the top by blowing from the bottom.

Fig. 2 shows another embodiment, in which air can be freely blown out from four discharge ports A, B, C, and D at the top by blowing from the bottom.

Figure 3 shows the air outlets A, B, C, and D, which allow air to flow freely.

In Figures 1 to 3, 41 indicates the main body of the hot air fan;
42 is a suction port, 43 is a discharge port, respectively A, B,
It is divided into C and D, and air can be sent to any outlet.

Fig. 4 shows a cross section of the hot air and discharge port. There is a motor fan 45 in the wind tunnel 44, and the wind that enters from the blow port passes through heaters 46, 47, 48, and 49, and the heated air is distributed in the wind direction. It passes through the adjustment plate 9 (control plate) and exits to the discharge port formed by the guide wall 7.

The discharge ports A, B, C, and D are each independent wind tunnels, and by changing the wind direction adjustment plate 9, for example, in the direction 9', the wind is discharged only into the room at the wind tunnel outlet.

Discharge port A. B, C, and D can independently output air to any outlet by changing the direction of the airflow direction adjusting plate 9.

50, 51, and 52 are branch plates for branching the wind tunnel.

In the above embodiment, a control plate type fluid deflection element is used, but it goes without saying that a negative pressure type may also be used.

As is clear from the above description, the hot air fan of the present invention has a plurality of branched wind tunnels, and a fluid deflection element is provided on the windward side of the wind tunnel. Even without providing a heating system, the structure can be simplified and heating can be performed over a wide range at low cost.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a hot air fan showing one embodiment of the present invention;
The figure is a perspective view showing another embodiment of the present invention, FIG. 3 is a front view of the discharge port portion, and FIG. 4 is a sectional view of essential parts of the hot air fan of the present invention.
Figures 5a and l) are basic configuration diagrams of a control plate type fluid deflection element, and Figures 6a and l) are basic configuration diagrams of a negative pressure type fluid deflection element. 1.15... Fluid deflection element, 7... Guide wall, 9... Wind direction adjustment plate (control board), 44...
... Wind tunnel, 45 ... Motor fan (fan), 46 ... Heater (heating body), A, B,
C, D... Discharge port (branched wind tunnel).

Claims (1)

[Claims] 1. A fan installed at one end of the wind tunnel, a branch side installed at the other end that branches into multiple parts, a nozzle located in the middle between the two to narrow the flow of air, and a guide wall installed downstream of this nozzle. , a control means such as a control plate for controlling the streamline state of the wind on the windward side of the nozzle, and when the direction of the wind flowing out from the outlet of the nozzle is most directed toward the guide wall, the wind flows along the guide wall. A hot air blower comprising: a fluid deflection element disposed as shown in FIG.