JPH072834U - Exhaust fan for bathroom - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent condensed water from falling into the bathroom without affecting the water vapor suction capability of the ventilation fan. [Structure] A ventilation fan main body 3 is disposed on the ceiling 2 of a bathroom 1 so as to cover an opening 7a formed in a ceiling plate 7, and the ventilation fan main body 3 covers the opening 7a from the bathroom 1 side. A decorative frame 9 is attached to the. In this case, the ventilation holes 9b of the decorative frame 9 are covered with the moisture permeable waterproof cloth 13, and therefore, the dew condensation water dropped from the ventilation fan main body 3 is absorbed by the moisture permeable waterproof cloth 13.
Water vapor in the bathroom 1 is sucked into the ventilation fan main body 3 through the moisture-permeable waterproof cloth 13.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ventilation fan for a bath room that ventilates the bathroom by discharging water vapor in the bathroom to the outside.

[0002]

[Prior art]

 Conventionally, in this type of bathroom ventilation fan, the ventilation fan main body is arranged so as to cover the opening formed in the ceiling plate of the bathroom from the back of the ceiling, and a decorative frame is attached so as to cover the opening from the room side. It is provided with a different configuration. According to this configuration, when the fan device of the ventilation fan main body is driven, the water vapor in the bathroom is sucked into the ventilation fan main body through the ventilation holes of the decorative frame and the opening of the ceiling plate, and is discharged to the outside via the discharge duct of the ventilation fan main body. It is discharged.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional configuration, water vapor that is sucked into the ventilation fan body is condensed to generate water droplets, which drop into the bathroom through the ventilation holes of the decorative frame and the openings of the ceiling plate. There was an occasion. Since this condensed water is lower than the temperature inside the bathroom, if the condensed water falls on the person using the bathroom, that person will feel uncomfortable as “cold”.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a bathroom ventilation fan capable of preventing condensed water from falling into the bathroom.

[0005]

[Means for Solving the Problems]

 The present invention provides a ventilation fan main body which is disposed in the back of a ceiling of a bathroom and sucks water vapor in the bathroom from an opening formed in the ceiling plate of the bathroom and discharges it to the outside, and an opening of the ceiling plate. A bathroom ventilation fan provided so as to cover from the bathroom side and having a decorative frame having ventilation holes, wherein a moisture-permeable waterproof cloth that allows water vapor in the bathroom to pass through and does not allow water droplets flowing down from the ventilation fan body side to pass through. Due to this, there is a feature where the ventilation holes of the decorative frame are covered.

[0006]

[Action]

 According to the above means, since the ventilation holes of the decorative frame are covered with the moisture permeable waterproof cloth, the dew condensation water falling from the ventilation fan main body is received by the moisture permeable waterproof cloth and does not fall into the bathroom. Moreover, since the moisture-permeable waterproof cloth allows water vapor to pass therethrough, there is no risk of impairing the water vapor suction capability of the ventilation fan.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. First, in FIG. 1, a ventilating fan main body 3 is disposed on the ceiling 2 of a bathroom 1. The ventilation fan main body 3 is fixed to a hood 4 having a suction port 4a on the lower surface and a discharge duct 4b on the right side, a fan motor 5 disposed on the ceiling surface of the hood 4, and a rotating shaft 5a of the fan motor 5. It is provided with a sirocco fan 6 and is fixed to a packing 8 attached to the peripheral edge of the opening 7a of the ceiling plate 7.

On the other hand, the decorative frame 9 is for covering the opening 7 a of the ceiling plate 7 from the bathroom 1 side. As shown in FIG. 2, a bracket 10 is provided on the bosses 9a, 9a of the decorative frame 9, and a substantially V-shaped spring 11 is attached to the bracket 10, and as shown in FIG. When the spring 11 is fitted into the engagement hole 12a of each bracket 12 provided on the lower surface of the hood 4, the decorative frame 9 is pulled toward the hood 4 side and abuts on the ceiling plate 7.

A plurality of ventilation holes 9 b are formed on the lower surface of the decorative frame 9, and each ventilation hole 9 b is covered with one moisture-permeable waterproof cloth 13. The moisture-permeable waterproof cloth 13 is shown in FIG. As described above, the double-sided tape 14 is applied to the inner surface of the decorative frame 9. In this case, as shown in FIG. 3, the moisture-permeable waterproof cloth 13 is composed of a microporous film 13a made of polytetrafluoroethylene or the like and a cloth 13b, which is called a "GORE-TEX" product name. That is, it has a property of allowing water vapor having a diameter of about 2/100 million cm in the bathroom 1 to pass therethrough and preventing water droplets having a diameter of about 1/100 cm flowing down from the ventilation fan main body 3 side.

A plurality of auxiliary ventilation holes 9 c are formed on the side surface of the decorative frame 9. As shown in FIG. 1, each of the auxiliary ventilation holes 9c is directed toward the moisture-permeable waterproof cloth 13 side by descending and inclining toward the inside, and water drops that have fallen from inside the hood 4 should the auxiliary ventilation holes 9c fall. Even if it enters inside 9c, it does not fall outside the decorative frame 9 but falls onto the moisture-permeable waterproof cloth 13 side.

According to the above-described embodiment, when the fan motor 5 is energized and the sirocco fan 6 rotates, the water vapor in the bathroom 1 passes from the ventilation holes 9 b of the decorative frame 9 and the auxiliary ventilation holes 9 c to the ceiling plate 7. Is sucked into the hood 4 through the opening 7a and the suction port 4a, and is discharged to the outside through the discharge duct 4b of the hood 4.

In this case, water vapor is generated due to the dew condensation of the water vapor sucked into the hood 4, but since the ventilation holes 9b of the decorative frame 9 are covered with the moisture-permeable waterproof cloth 13, they fall from the hood 4. Condensed water is received by the moisture-permeable waterproof cloth 13 and does not fall into the bathroom 1. Therefore, it is possible to prevent the dew condensation water from falling on the person using the bathroom and giving the person the discomfort of being "cold". Moreover, since the moisture-permeable waterproof cloth 13 allows water vapor to pass therethrough, and the auxiliary ventilation holes 9c are formed in the decorative frame 9, the vapor-absorbing ability of the ventilation fan is the same level as the conventional one in which the moisture-permeable waterproof cloth 13 is not attached. Maintained at.

Although the product name “GORE-TEX” is used as the moisture-permeable waterproof cloth 13 in the above-mentioned embodiment, the moisture-permeable waterproof cloth 13 is not limited to this, and is produced when the substrate is coated with polyurethane to extract the solvent. The product name "Entran" that uses micropores, the product name "Dincam" that is coated with an amino acid-based polymer, and the product name "Microft Rectus" that is made of ultra-fine long fibers in a high-density woven fabric for water repellent treatment. May be used, or only the film 13a shown in FIG. 3 may be used.

[0014]

[Effect of device]

 As is clear from the above description, according to the bathroom ventilation fan of the present invention, since the ventilation holes of the decorative frame are covered with the moisture permeable waterproof cloth, the dew condensation water dropped from the inside of the ventilation fan body is protected by the moisture permeable waterproof cloth. It will be received and will not fall into the bathroom. Therefore, it is possible to prevent the dew condensation water from falling to the person using the bathroom and giving the person the discomfort of being “cold”. Moreover, since the moisture-permeable waterproof cloth allows water vapor to pass therethrough, it is possible to prevent the water vapor absorbing ability of the ventilation fan from being hindered.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a decorative frame and a moisture-permeable waterproof cloth.

FIG. 3 is a cross-sectional view of a breathable waterproof cloth.

[Explanation of symbols]

1 is a bathroom, 2 is the ceiling, 3 is a ventilation fan main body, 7 is a ceiling board,
7a is an opening, 9 is a decorative frame, 9b is a ventilation hole, and 13 is a moisture-permeable waterproof cloth.

Claims (1)

[Scope of utility model registration request] 1. A ventilating fan main body, which is disposed in the ceiling of a bathroom and sucks water vapor in the bathroom from an opening formed in the ceiling plate of the bathroom and discharges it outside, and an opening of the ceiling plate. A decorative frame provided so as to cover from the bathroom side and having a ventilation hole, wherein the ventilation hole of the decorative frame allows water vapor in the bathroom to pass through and water droplets flowing down from the ventilation fan main body side to pass through. A ventilation fan for the bathroom, which is covered with a non-breathable waterproof cloth.