JPH01123937A - Small room ventilation device - Google Patents

Abstract

PURPOSE:To ventilate a small unit effectively and in short time by installing to a wind passage an opening to be communicated with the outside having a shutter which can be opened/closed freely and to a wind passage provided between said opening and a ventilator a shutter thereof can open/close the wind passage itself freely. CONSTITUTION:A shutter 12 for an opening 10 is opened in an airflow passage 8, while a shutter 14 is closed and a shutter 15 is opened. At the time of operating a blower 3, the air present inside a small room unit 1 is sucked up from an opening 7 on the bottom through an airflow passage 9, since the passage is closed. Then fresh open air is sucked up from an opening 10. The air blows into the upper part of the small room unit 1 from an opening 6, passing through the passage 8. Since open air in summer time is warm while the air inside the small room unit 1 is cool, there will occur no mixing based on differential density substantially. Therefore, the old warm air inside the small room unit 1 and fresh open air will form a temperature forming layer indicated by a boundary line, which moves downward in proportion with the operation of the blower 3 so that the old air may be discharged by 100%, thereby filling the small room unit 1 with fresh open air.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a unit ventilation system for small rooms such as bathrooms and toilet rooms.

[Background technology]

Background technology will be explained using figures.

Figure 4 shows a conventional small room unit 2 equipped with a conventional ventilation system.
It is 1. 22 is a ventilation system consisting of an air blower attached to an opening 24, and is provided on the ceiling, and 23 is a door. When the ventilation device 22 is operated, air is sucked in through a gap in a door 23 or the like, old air is discharged through an opening 24, and the air in the small room unit 21 is ventilated. However, in some places, such as toilets, for example, a bad odor may remain even if the ventilation system is running. This is because, as shown in the X part of the figure, there are areas at the lower and upper corners where the air flow is stagnant. No matter how much the ventilation system is operated, the air in this area does not easily escape to the outside because the air flow immediately goes toward the opening 24. Furthermore, if cold air from outside is sucked in from the upper part of the door 23, such as when heating a toilet, it will descend due to the difference in density with the warm air inside the unit 21. The air inside the unit 21 is drawn into the ventilation system 22 so that the overall flow is upward, but it mixes with the fresh cold air that is descending.

Therefore, the ventilation device 22 has to suck in air mixed with some fresh air, which is inefficient. However, it is uneconomical to constantly run ventilation equipment. In addition, especially in toilets, etc., the next user will be extremely uncomfortable if the odor is not removed by ventilating the area within a short period of time after use. Currently, there is no small room unit ventilation system that can efficiently ventilate the unit in a short time.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and is intended to provide an excellent small room unit ventilation system that can efficiently ventilate a small room unit in a short time.

[Disclosure of the invention]

The present invention has openings 6.7 at the top and bottom of the small chamber unit 1.
are provided, and these are respectively connected to the ventilation system 2 by air passages 8,
The air passage 8.9 has an opening 10.9 connected to the outside and has a shutter 12.13 that can be opened and closed.
11, and the air passage between the opening 10.11 and the ventilation apparatus is provided with a shutter 14.15 that can freely close and open the air passage itself. This is what we provide.

Embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the present invention. 1 is a small room unit,
Reference numeral 2 denotes a ventilation system, which includes a blower 3, a blower suction port 4, and a blower discharge port 5. Openings 6.7 are provided in the upper ceiling and lower part of the inner wall of the small room unit 1. The openings 6.7 are each connected to the blower inlet 4 of the blower 3 by an air channel 8.9. The air passage 8.9 has an opening 10 to the outside.
．． 11 are provided, and each shutter 12 can be opened and closed freely.
．． 13 are arranged. Opening 10 of air passage 8 and blower suction port 4, opening 11 of air passage 9 and blower suction port 4
Shutters 14 and 15 are provided between the air passages 8 and 9, respectively, so that the air passages 8 and 9 can be closed and opened.

Figure 2 shows that when the small room unit 1 is heated in winter,
An explanation of the operation when using this ventilation device 2 is shown below. In the air passage 8, the shutter 12 of the opening 10 is closed, and the shutter 14 is open. In the air passage 9, the opening 1
The shutter 13 of No. 1 is opened, and the shutter 15 is closed, blocking the air passage 9. When the blower 3 is operated, since the air passage 9 is closed, air inside the small room unit 1 is sucked through the air passage 8 and from the opening 6. At this time, since the opening 11 of the air passage 9 is connected to the outside, fresh external air is sucked in through the opening 11, passes through the air passage 9, and is blown into the bottom of the small room unit 1 from the opening 7. In winter, the outside air is cold and the air inside unit 1 is warm, so mixing due to density difference hardly occurs. Therefore, as shown in the figure, the old warm air inside the small room unit 1 and the fresh outside cold air create temperature stratification as indicated by the boundary line X. As the blower 3 operates, the boundary line X shown in the figure moves upward, and 100% of the old air inside the unit 1 is exhausted from the upper opening 6, and the unit 1 is filled with fresh air. Since there is almost no mixing of old air and fresh air, the small room unit 1 can be ventilated simply by sending in fresh air equivalent to the volume of the small room unit 1, and efficient ventilation can be achieved in a very short time.

FIG. 3 is an explanation of the operation when the small room unit 1 is being cooled in the summer. In the air passage 8, the shutter 12 of the opening 10 is open, the shutter 14 is closed, and the shutter 15 is open.

When the blower 3 is operated, since the air passage 8 is closed, the air inside the small room unit 1 is sucked through the air passage 9 through the opening 7 at the bottom. At this time, since the opening 10 of the air passage 8 is connected to the outside, fresh external air is sucked in from the opening 10, passes through the air passage 8, and enters the small room unit 1 from the opening 6.
It will be blown into the inner upper part. In summer, the outside air is warm and the air inside the small room unit 1 is cold, so mixing due to density difference hardly occurs. Therefore, as shown in the figure, the old warm air inside the small room unit 1 and the fresh outside cold air create temperature stratification as indicated by the boundary line X. As the blower 3 operates, the boundary line X shown in the figure moves downward, 100% of the old air inside the small room unit 1 is exhausted, and the unit 1 is filled with fresh air. Since the new air layer successively pushes out the old air layer, in this case as well, as in the case of FIG. 2, ventilation is possible in a very short time and with high efficiency.

(Effects of the Invention) As described above, according to the present invention, the new air layer pushes out the old air layer, so ventilation only requires sending in fresh air equivalent to the volume of the small room unit 1. We were able to provide an excellent small room unit ventilation system that can provide efficient ventilation in a very short time.

[Brief explanation of the drawing]

1 to 3 are cross-sectional views of one embodiment of the present invention, and FIG. 4 is a cross-sectional view of a conventional example. 1.21...Small room unit, 2...22...Unit ventilation system, 3.22...Blower, 4...Blower suction port, 5...Blower outlet, 6.7.10 .1
1... Opening, 8.9... Air path, 12.13.14
．． 15...shutter, 23...door, 24...
Aperture. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] (1) Openings 6 and 7 are provided in the upper and lower parts of the small room unit 1, and these are connected to the ventilation device 2 by air passages 8 and 9, respectively, and the air passages 8 and 9 have a shutter 12 that can be opened and closed, Openings 10 and 11 connected to the outside having 13
A small room unit characterized in that the air passages 8 and 9 between the openings 10 and 11 and the ventilation device 2 are provided with shutters 14 and 15 that can freely close and open the air passages themselves. Ventilation equipment.