JPS6036817Y2 - ventilation system - Google Patents

Description

[Detailed description of the invention] This invention relates to a ventilation system that combines a simultaneous intake/exhaust type ventilation fan and a damper box that changes the flow of air using a damper.

Conventionally, ventilation fans of the simultaneous intake and exhaust type have been used to ventilate living rooms, etc., but they only provide ventilation by simultaneous intake and exhaust, and cannot be used for a variety of operations.

This idea was made to eliminate the drawbacks of the conventional ones, and by combining a damper box with a simultaneous intake and exhaust type ventilation fan, it can be easily used as a circulator and natural ventilation by operating a switch. The purpose is to provide ventilation equipment.

An embodiment of this invention will be described below with reference to the drawings.

FIG. 1 is a vertical sectional view showing a simultaneous intake and exhaust type ventilation fan in an embodiment, where 1 is the ventilation fan main body, and 2 is the ventilation fan main body 1.
A motor is attached to a partition plate 3, 4 and 5 are intake fans and exhaust fans respectively set on the shafts on the opposite side of the motor 2, 6 and 7 each have a suction part and a discharge port, and the above-mentioned intake and exhaust fans 4 and 5
A casing 8 is attached to the partition plate 3 around the ventilation fan body 1, and 8 is a decorative grille detachably attached to the ventilation fan body 1, a wall 9 that partitions the intake passage and the exhaust passage, an opening 10 for air supply, A rotatable looper 12 having an exhaust opening 11 is installed in the exhaust opening 11 by a rotating shaft 13.

Reference numeral 14 indicates an operating lever for operating the looper 12, and reference numeral 15 indicates an exhaust intake port provided on the side of the ventilation fan body 1 on the side where the exhaust fan 5 is installed, and is usually blocked with a blind board. .

16 is a duct connection frame provided at this exhaust intake port, and 17 is an exhaust grill attached to the tip of the duct 18.

Figure 2a is a horizontal sectional view of the damper box, b is a front view, and 19 is a connection port 20 to which two duct systems can be connected.
．． 21 is a damper box body, and 22 is a rotatable damper installed in the damper box body. The damper 22 is driven from the position of the solid line in FIG. Rotate the damper 22 to the position (damper open), and when the rotating solenoid is de-energized by the force of a helical spring, etc.
The damper 22 returns to the position indicated by the solid line (damper closed).

23 is a positioning stopper that determines the rotation range of this damper 22, 24 is a damper drive unit that drives the damper 22, and 25 is a duct connection device provided in a direction perpendicular to each duct connection direction when the damper is open. The opening 26 is a blind plate that closes the opening 25, and 27 and 28 are an intake duct and an exhaust duct that connect the ventilation fan main body 1 and the damper box 19, as well as the damper box 19 and the outside air.

FIG. 3 is a circuit diagram of a control circuit in this ventilation system, and 31 is a commercial power source.

The motor 2 of the simultaneous intake/exhaust type ventilation fan is connected to a commercial power source 31 through a parallel circuit of contacts 29a and 30b of interlocking manual switches 29 and 30 and a speed changeover switch 32 of the motor 2 in series.

Further, the damper drive unit 24 is connected to a contact point 30 of a manual switch 30.
It is connected to a commercial power source 31 via a.

Next, the operation will be explained.

When the manual switch 29 is energized to the contact 29a side, the switch 30 is also energized to the contact 30a, power is supplied to the damper drive unit 24 from the contact 30a of the switch 30, the damper 22 is opened, and the intake duct 27 is energized. The damper 22 separates the exhaust duct 28 from the exhaust duct 28 as shown by a dotted line 22a.

Therefore, if the speed selection switch 32 is selected as strong or weak,
Electricity is supplied from the contact 29a of the switch 29 to the motor and the speed changeover switch 32, the motor 2 rotates, the intake and exhaust fans 4 and 5 rotate, and the fan is operated as a simultaneous intake and exhaust type ventilation fan.

In this case, outside air is sucked by the intake fan 4, enters the ventilation fan body 1 from the intake duct 27 through the damper box body 19, and is supplied into the room from the air supply opening 10.

In addition, indoor air is sucked by the exhaust fan 5, enters the ventilation fan body 1 through the exhaust opening 11, and is discharged to the outside through the exhaust duct 28 and the damper box 19.

Furthermore, when the exhaust intake port 15 is opened, exhaust is also exhausted from the duct 18.

When the speed changeover switch 32 is turned off, the damper 22 is opened and the motor 2 stops, so it becomes a natural ventilation port through which outside air is introduced and exhausted through the intake and exhaust ducts 27 and 28.

Here, as shown in FIG.
By laying the piping more to the left and right of the building, natural ventilation can be achieved more efficiently by utilizing the power of the outside wind.

Next, when the manual switch 29 is biased toward the contact 29b side, the switch 30 is also biased toward the contact 30b side, and while the motor 2 is rotating, the power to the damper drive section 24 is cut off, and the damper 22 is in the closed state. Thus, the intake duct 27 and the exhaust duct 28 are short-circuited.

Therefore, if the speed selection switch 32 is selected as strong or weak,
Indoor air sucked in by the exhaust fan 5 is supplied back into the room through the exhaust duct 28, damper box 19, intake duct 27, and intake fan 4, and functions as a circulator.

If the looper 12 of the exhaust opening 11 of the decorative grille 8 of the simultaneous intake/exhaust type ventilation fan is closed and the indoor air is sucked in through the exhaust grille 17, the indoor air will be sucked in from a remote location and then discharged. , the effect as a circulator becomes even better.

Further, when the speed changeover switch 32 is turned off, the power to the motor 2 is cut off and the motor 2 is stopped.

At this time, since the damper 22 is closed, outside air does not enter the room.

Although the above embodiment has been described with a duct 18, this is not necessarily necessary, and the ventilation fan and damper box are not limited to those in the embodiment.

Furthermore, this idea is not limited to ventilation in living rooms, but can also be applied to ventilation in other places.

As explained above, according to this invention, by using a combination of a simultaneous intake and exhaust type ventilation fan and a damper box that separates two duct systems by opening and closing a damper, or shorts the two duct systems, it is possible to achieve simultaneous intake and exhaust. It can be used for a wide range of purposes such as air ventilation, natural ventilation, and circulators, and has the advantage that it can be easily operated using a wall switch or the like.

By providing a control circuit that has a first switch that switches between simultaneous energization of the ventilation fan motor and damper drive unit and energization of only the motor, and a second switch that switches the speed and start/stop of the motor, the control circuit can be simplified. By using a control circuit with a simple configuration, it is possible to switch between ventilation by simultaneous intake and exhaust, natural ventilation, and use as a circulator with a simple operation.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing a ventilation fan in an embodiment of this invention, Fig. 2a is a horizontal sectional view showing an embodiment of this invention, b is a front view, and Fig. 3 is a vertical sectional view showing a ventilation fan in an embodiment of this invention. A circuit diagram showing a control circuit, and FIG. 4 is a horizontal sectional view showing another embodiment of this invention. In the figures, the same symbols indicate the same or equivalent parts,
1 is the ventilation fan body, 2 is the motor, 4 is the intake fan, 5 is the exhaust fan, 8 is the decorative grille, 10 is the air supply opening, 11 is the exhaust opening, 12 is the louver, and 14 is the operation. Lever, 17 is exhaust grill, 19 is damper box body, 20, 21 is duct connection port, 22 is damper 27
28 is an intake duct, and 28 is an exhaust duct.

Claims (1)

[Scope of utility model registration request] (1) A simultaneous intake/exhaust type ventilation fan, an exhaust duct and an intake duct that connect to this ventilation fan, a damper box installed between these ducts, and a damper box installed in this damper box that partitions the above two systems of ducts. or a damper that short-circuits. +2) A first switch provided between the motor and the drive unit and the power source so as to switch between simultaneous energization of the motor and damper drive unit of the ventilation fan and energization of only the motor, and a first switch that controls the speed and power of the motor. 2. The ventilation system according to claim 1, further comprising a control circuit having a second switch provided between the motor and the first switch so as to switch between the motor and the first switch.