JPH0523338B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a bathroom ventilation system.

(Conventional technology) Conventionally, to dry a bathroom, a ventilation fan was attached to the wall of the bathroom, a duct was installed between this ventilation fan and a ventilation opening in the outside wall of the building, and the ventilation fan was operated. By removing damp air in the bathroom,
The exhaust is vented to the outside of the building via ducts.

However, with such a configuration, the air sent out from the ventilation fan is humid, so if this air is discharged directly into the attic, the attic will become highly humid, which will have a negative impact on the building. To avoid this, a duct must be installed between the ventilation fan and the ventilation opening to prevent air from leaking. However, installation work for such ducts is extremely troublesome.

(Problems to be Solved by the Invention) An object of the present invention is to enable ventilation of a bathroom without requiring the installation of a duct.

(Means for solving the problem) This invention includes a suction port that sucks air in the bathroom,
The dehumidified air is circulated by a dehumidifying device that dehumidifies the air sucked in from the suction port, a fan that sends out the air from the dehumidifying device, and the air sent out by the fan is blown out into the bathroom. An exhaust system that ventilates the bathroom by blowing out air from a fan to dry the bathroom and into the attic or under the floor, which leads to a ventilation hole in the outside wall of the building. A timer that starts the timer when the mouth starts circulating air for drying, and when this timer expires, it switches the air path from the dehumidifier and starts ventilation. It is characterized by being composed of a timer contact.

(Example) An example of the present invention will be described with reference to the drawings. In particular, in this invention, the inside of the bathroom is preliminarily dried for a predetermined period of time, and ventilation is automatically started when that period of time has elapsed.

In the figure, 1 is a bathroom, 2 is a bathtub, 3 is a partition wall,
4 is the door of bathroom 1, 5 is the ceiling surface, 6 is the ceiling wall,
An attic space 7 is formed between the ceiling surface 5 and the ceiling surface 5. 8
is the outer wall of the building, and 9 is a ventilation hole provided in the outer wall 8 so as to communicate with the attic 7. These are not particularly different from the configuration of bathrooms in ordinary houses.

Reference numeral 10 denotes a dehumidifying unit installed in the bathroom 1, which includes a dehumidifying device 11, a fan 12 that sends out air, and a suction port 13 that sucks air from inside the bathroom 1.
, an air outlet 14 for circulating the air sent out from the dehumidifier 11 by the fan 12 into the bathroom 1;
2, an exhaust port 15 for discharging the air directly to the attic 7, and a damper 16 for switching the air path to switch the air path between the air outlet 14 and the exhaust port 15. It is structured as follows.

Note that 17 is a solenoid for switching and driving the air path damper 16. Further, in FIG. 3, 18 is a power supply, 19 is a power switch, 20 is a ventilation switch, and 21 is a timer for setting a preliminary dehumidification time, and the timer time can be set arbitrarily by a variable resistor 22. There is. 23 is a contact of the timer 21, which is turned on when the time set by the timer 21 has elapsed.

In this invention, the dehumidifier 11 and the fan 12 are kept in operation even when drying the inside of the bathroom 1 or when exhausting the air. First, when the bathroom 1 is dry, the damper 16 is operated as shown in FIG.
The air path is switched so that the exhaust port 15 is closed and the blowout port 14 is opened.

When the power switch 19 and the ventilation switch 20 are turned on in this state, the dehumidifier 11 and the fan 12 are first operated by turning on the power switch 19. This allows the air in the bathroom 1 to flow through the suction port 13.
It is sucked in, dehumidified by the dehumidifier 11 (warmed if necessary), and sent out by the fan 12.

As described above, since the damper 16 opens the air outlet 14, the air in the bathroom 1 is circulated. This dries the inside of the bathroom 1. Note that this preliminary drying may be used to dry clothes and the like.

When the power switch 19 and the ventilation switch 20 are turned on, the timer 21 starts a preset time period. This time period is sufficient time to preliminarily dry the inside of bathroom 1, for example, 10~
It is set to about 20 minutes. When this time limit has elapsed, the contact 23 is turned on. This ON causes the solenoid 17 to operate, as shown in FIG.
The air outlet 14 is closed and the exhaust port 15 is opened.

Then, the air in the bathroom 1 is continuously dehumidified by the dehumidifier 11, and also by the fan 12.
After that, it is discharged from the exhaust port 15 to the attic space 7. The discharged air is further discharged outdoors through the ventilation port 8.

The air discharged from the exhaust port 15 has already been sufficiently dehumidified and is still discharged through the dehumidifier 11, so that it is sufficiently dried. Therefore, even if this is discharged directly into the attic 7, there is no need to worry about bringing moisture into the building. Rather, it is extremely convenient because it has the effect of drying the building.

Since the air is dried and dehumidified before being discharged, there is no need to install a conventional duct between the exhaust port 15 and the ventilation port 8.

Note that the above embodiment is an example in which the dehumidifying unit 11 is installed on the ceiling, and therefore the exhaust port 15 opens toward the ceiling, but if the ventilation port 8 is also located under the floor, the dehumidifying unit 11 may be installed on the floor, with the exhaust port 15 opening toward the bottom of the floor.

(Effects of the Invention) As detailed above, according to the present invention, when drying the bathroom, the air is dehumidified for a certain period of time set by a timer prior to ventilation. Therefore, there is no need to install a duct leading to the ventilation opening as in the past, and therefore no construction work is required for the installation, and it is definitely possible to prevent forgetting to carry out preliminary dehumidification. It produces a certain effect.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of the present invention;
The figures are cross-sectional views showing different operating states, and FIG. 3 is a control circuit diagram. 1... Bathroom, 7... Attic, 8... Ventilation vent, 1
1... Dehumidifier, 12... Fan, 13... Suction port, 14... Air outlet, 15... Exhaust port, 16...
Damper, 21...timer, 23...contact.

Claims (1)

[Claims] 1. A suction port that sucks air in the bathroom, a dehumidifier that dehumidifies the air sucked from the suction port, a fan that sends out the air from the dehumidification device, and a fan that sends the air sent out by the fan into the bathroom. an air outlet for drying the interior of the bathroom by circulating dehumidified air by blowing it toward the ceiling; and a ceiling for communicating the air blown out by the fan to a ventilation hole provided in the outer wall of the building. An exhaust port for ventilating the bathroom by blowing out air toward the back or under the floor, a timer that starts a timer when circulation of air for drying starts, and an operation when the timer expires. and a timer contact for starting ventilation by switching the air path from the dehumidifier.