JP2000291168A - Dew condensation preventing structure for bathroom ceiling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dew condensation preventing structure for a bathroom ceiling capable of surely preventing dew condensation of the bathroom ceiling and making steam sauna or the like comfortably usable in a bathroom while improving design value in the bathroom. SOLUTION: This dew condensation preventing structure for a bathroom ceiling is provided with an air permeable plate 10 installed with a specified clearance below the ceiling of a bathroom 1, an air intake 18 for leading outside air into a closed space 11 formed of the clearance, and an exhaust means installed at the side wall of the bathroom 1 below the air permeable plate 10 to exhaust air in the bathroom 1 to the outside. Outside air led in form the air intake 18 by the actuation of the exhaust means is passed from above to below the air permeable plate 10 and exhausted outside. A door part of the bathroom 1 is provided with a closable intake hole, and the air intake 18 is opened/closed in relation to the opening/closing action of the intake hole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing dew condensation on a ceiling of a bathroom, and more particularly to a structure for preventing dew condensation on a ceiling of a bathroom which can prevent the occurrence of dew condensation on the ceiling by forming an air curtain on the ceiling.

[0002]

2. Description of the Related Art Conventionally, a structure for preventing dew condensation on the ceiling of a bathroom is disclosed in, for example, Japanese Utility Model Registration No. 3002872. This dew condensation prevention structure, as shown in FIG.
As a bathroom ceiling plate, a moisture-absorbing and light-weight ceramic porous plate 53 (referred to as a ceramic porous plate 53) on which a ventilation layer formed of moisture-permeable holes is formed and which has been subjected to antibacterial and fungicide treatments is attached via a ceiling fixture 54. An exhaust device 56 is installed above or in the lateral direction of the back space 55 of the ceiling plate, and the generated steam in the bathroom 51 in which the bathtub 52 is installed is sucked at a low speed as indicated by an arrow.

[0003]

However, in this dew-prevention structure, when the high-humidity air in the bathroom 51 passes through the ceramic porous plate 53 and continues to be condensed and absorbed, As the air permeability deteriorates, the dew condensation preventing effect gradually diminishes, and finally the dew condensation water accumulates on the lower surface of the ceramic porous plate 53, which falls into the bathroom 51. In addition, air containing dust and the like in the bathroom 51 is
Since the exhaust device 56 is sucked and flows as indicated by the arrow in FIG. 3, dust adheres to the ceramic porous plate 53. In particular, since the dust and the ceramic porous plate 53 are wet by water supply, the ceramic porous plate 53 is wetted. Dust easily adheres to the inside of the plate 53, and the effect of ventilation decreases with the use of the bathroom 51.

[0004] Further, generally, an openable and closable intake hole is provided at a lower portion of the door of the bathroom 51. When the steam sauna is used in the bathroom 51, the exhaust device 56 is operated with the intake hole opened. When this is done, outside air outside the room is discharged from the bathroom 51 through the air inlet.
The exhaust device 56 cannot be operated because the bather feels cold when sucked inside and hits the bather in the washing room. Therefore, when the steam sauna is used, the exhaust device 56
Cannot be operated, and consequently the occurrence of dew condensation is promoted. As a result, it is difficult to reliably prevent dew condensation in the conventional dew condensation prevention structure. was there.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to prevent dew condensation on a bathroom ceiling and to improve the design value of the bathroom. An object of the present invention is to provide a structure for preventing condensation on a bathroom ceiling. In addition, the object of the invention described in claim 2 is, in addition to the object of the invention described in claim 1, in addition to the object of the invention described in claim 1, the outside air introduced from the air inlet can be effectively flown to the ceiling to more reliably prevent dew condensation. An object of the present invention described in claim 3 is to provide a dew condensation preventing structure, and to provide a dew condensation preventing structure for a ceiling of a bathroom in which a steam sauna or the like can be used comfortably in a bathroom. Is to provide. Claim 4
Another object of the present invention is to provide, in addition to the objects of the first to third aspects of the present invention, a structure for preventing dew condensation on the ceiling of a bathroom, which can further improve the design value in the bathroom by indirect lighting of a breathable plate member. .

[0006]

In order to achieve the above object, according to the first aspect of the present invention, there is provided an air-permeable plate member provided with a predetermined gap below a ceiling of a bathroom; An air inlet through which outside air can be introduced into a substantially closed space formed by the gap; and an exhaust unit installed on a side wall of the bathroom below the air-permeable plate to exhaust the air in the bathroom to the outside. Thus, the outside air introduced from the intake port can be passed from above to below the permeable plate member and exhausted to the outside.

[0007] With this configuration, when the exhaust means operates, dry outside air is introduced from the intake port into the substantially closed space formed between the ceiling and the permeable plate, and this outside air is permeable to air. The gas passes from the upper surface side to the lower surface side of the plate material, and is exhausted to the outside from exhaust means provided on a side wall below the gas-permeable plate material in the bathroom. In other words, an air curtain through which dry outside air flows is generated on the ceiling of the bathroom, and the vapor generated in the bathroom evaporates again, for example, by contacting the air curtain, and the occurrence of dew condensation on the ceiling of the bathroom is reliably prevented. Is done. Further, since the air-permeable plate is provided below the ceiling, the inspection window and the like provided on the ceiling are not visually recognized by the air-permeable plate, and the design value in the bathroom is improved.

The invention according to claim 2 is characterized in that the intake port and the exhaust means are provided on opposite side walls of the bathroom. With this configuration, the outside air introduced into the substantially enclosed space from the intake port flows through the entire area of the space, passes through the permeable plate material, and then is discharged by the exhaust means provided on the side wall facing the intake port. Since the air is exhausted, an air curtain can be effectively generated in substantially the entire area of the bathroom ceiling, and the occurrence of dew condensation on the bathroom ceiling can be more reliably prevented.

The invention according to claim 3 is characterized in that an openable / closable intake hole is provided in a bathroom door portion, and the intake port is opened / closed in connection with the opening / closing operation of the intake hole. With this configuration, when the steam sauna is used in the bathroom, or when the bather is in the bathroom in winter, when the ventilation fan is operated with the intake hole at the bottom of the door closed and the intake port opened, the bathroom The decrease in high temperature and high humidity conditions inside is reduced. In addition, when the ventilation fan is operated in a state where the intake hole is opened and the intake port is closed, ventilation in the bathroom can be performed, and for these reasons, comfortable bathing in the steam sauna can be performed in the bathroom.

[0010] The invention according to claim 4 is characterized in that the permeable plate has a light-transmitting property, and a lighting device is installed above the permeable plate. With this configuration, the light-transmitting gas-permeable plate functions as indirect lighting by the illumination light of the lighting device installed above the gas-permeable plate, and the design value in the bathroom is further improved.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 show a structure for preventing dew condensation on a bathroom ceiling according to the present invention. FIG. 1 is a perspective view of a partially broken interior of a bathroom, and FIG. 2 is a schematic sectional view thereof.

1 and 2, a bathroom 1 is covered with wall panels 2a to 2d, a waterproof pan (not shown) is installed in an opening on the floor side, and a ceiling panel 3 is installed in an opening on the upper side. Is installed as a bathroom unit. In the bathroom 1 of this bathroom unit,
A bathtub 4 is installed on the wall panel 2b side, a counter 5 is installed on the wall panel 2c side, and a washing place 6 is provided on a waterproof pan other than the bathtub 4 and the counter 5. A faucet 7 is provided on the upper surface of the bathtub 4 on the side of the wall 2c.
And knobs 8 and 9 for hot and cold water.

Below the ceiling panel 3 of the bathroom 1, there is a predetermined gap h (see FIG. 2),
Is installed. This permeable plate material 10 has a particle size of 0.1.
It is formed of a porous plate (including a laminate in which a reinforcing material and the like are laminated) point-adhered with a resin material having a thickness of t to 3 to 20 mm. The reason for these set values is that when the particle size is 0.1 mm or less, the intake efficiency is low, and when the particle size is 5 mm or more, it becomes difficult to prevent direct ingress of water from the bathroom 1 by a shower or the like. It is in.

On the other hand, if the airflow resistance is too small, local airflow will occur, and airflow through the entire area of the airflow plate 10 will not be performed.
It is set to 3 to 20 mm including the balance with the strength.
The most preferred particle size is 1 to 3 mm and the thickness t is 5 to 10 mm. As the particles of the permeable plate material 10, resin frit, color sand, glass particles and the like are used. Preferably, particles are used.

By arranging this permeable plate material 10 with the gap h between it and the lower surface of the ceiling panel 3,
A closed space 11 is formed in the ceiling portion of the bathroom 1,
Above the wall panel 2a of the space 11, for example, an electromagnetic shutter 12 as an air inlet is provided. Further, the permeable plate material 1 on the upper part of the wall panel 2c facing the wall panel 2a
Directly below 0, a ventilation fan 13 having a fan 13a as an exhaust means is installed, and the ventilation fan 13 and the electromagnetic shutter 12 are provided at substantially diagonal positions of the bathroom 1 which is rectangular in plan view.

An illumination device 14 for illuminating the ceiling panel 3 with illumination light downward (in the direction of the air-permeable plate 10) is installed substantially at the center of the ceiling panel 3, and a portion located above the washing place 6 is provided in the ceiling panel 3. An inspection window 15 having a predetermined size is formed. The inspection window 15 is used for inspecting the interior of the bathroom unit in which the bathroom 1 is unitized, and for checking the lighting unit 14.
This is provided to check the
Is blocked by

A door 19 having an intake hole 18 is installed on the wall panel 2a so as to be openable and closable, and the operation panel 2 is located near the door 19 on the outer surface of the wall panel 2a (for example, on the dressing room side).
0 (see FIG. 1). An illumination device 14, a ventilation fan 13, and an electromagnetic shutter 12 are connected to the operation panel 20. For example, the ventilation fan 13 and the electromagnetic shutter 12 operate in conjunction with the operation of the illumination device 14.

Next, the operation of the thus configured bathroom 1 for preventing dew condensation will be described. First, when a normal bathing is performed in a state where the intake hole 18 of the door 19 of the wall panel 2a is closed, the lighting device 14 is turned on by turning on a power switch (not shown) of the lighting device 14. In conjunction with the lighting of the lighting device 14, the ventilation fan 13 operates to rotate the fan 13a, and further, the electromagnetic shutter 12 operates to open, so that an air flow (air curtain) is generated in the ceiling portion of the bathroom 1.

That is, when the ventilation fan 13 is operated, since the interior of the bathroom 1 is a substantially closed space, the space 11 between the ceiling panel 3 and the permeable plate 10 via the permeable plate 10 becomes negative pressure. The outside air is sucked and introduced from the opened electromagnetic shutter 12 as shown by the arrow A in FIG. The outside air sucked and introduced into the space 11 from the electromagnetic shutter 12 flows from the upper surface side to the lower surface side of the gas permeable plate material 10 having air permeability as shown by the arrow B, and thereafter, the air permeable plate material 10
Flows in the direction of the ventilation fan 13 along the lower surface of the fan, and is finally exhausted from the ventilation fan 13 to the outside as shown by arrow C.

As a result, the dried air sucked from the upper part of the wall panel 2a flows from the space 11 into the permeable plate 10 and from the lower surface of the permeable plate 10 (upper part of the bathroom 1).
An air curtain flowing to 3 is generated. By the generation of this air curtain, high-temperature, high-humidity steam rising in the bathroom 1 comes into contact with the air curtain,
Direct contact with the permeable plate 10 is prevented. Also,
Even if the vapor comes into contact with the lower surface of the air-permeable plate 10 or the inside of the air hole, the vapor is re-evaporated by the dry air that generates the air curtain, so that the vapor does not adhere to the inside of the air-permeable plate 10 and the like. The air permeability of the flexible plate 10 is ensured.

Furthermore, even if the vapor passes upwardly through the air-permeable plate material 10, there is a space 11 corresponding to the gap h between itself and the ceiling panel 3, and dry air flows into this space 11 As a result, the relative humidity becomes low and the dew condensation becomes difficult, and even if the dew is slightly formed, the dew is hardly dropped directly onto the bather's head while being held on the permeable plate material 10.

The illuminating light emitted from the illuminating device 14 indirectly illuminates the entire permeable plate 10 by using translucent particles as the permeable plate 10 so that the interior of the bathroom 1 becomes bright. In addition, the breathable plate 10 itself performs the same function as the conventional ceiling panel 3. Further, when the ceiling direction is viewed from the bathroom 1, only the breathable plate material 10 can be seen, and the inspection window 15 provided on the ceiling panel 3 is hidden, so that it cannot be seen at all. Therefore, a clean and clean feeling can be obtained on the ceiling portion in the bathroom 1.

<Embodiment 1> Next, a specific embodiment of the permeable plate 10 will be described. First, the breathable plate material 10 of Example 1 was formed by applying a hot-pressure coating to a glass-based resin having a particle size of 1 to 2 mm to a thickness t = 5 mm. installed. Further, the electromagnetic shutter 12 is used as an air inlet, and a steam generator (not shown) is operated in the bathroom 1;
While keeping the humidity close to 100%, the door 19
, The electromagnetic shutter 12 was opened, and the ventilation fan 13 was operated. As a result, it is confirmed that the high humidity state in the bathroom 1 is maintained, and that no dew condensation occurs on the permeable board 10, and that the illuminated permeable board 10 is equivalent to or higher than the conventional ceiling panel 3. It was confirmed that the design value was obtained.

<Embodiment 2> The permeable plate 10 of Embodiment 2
Is formed by welding a pulverized acrylic resin having a particle size of 1 to 2 mm to a thickness of t = 5 mm by welding under heat and pressure, installing the same in the bathroom 1 under the same conditions as in Example 1, and performing a similar test. As a result, it was confirmed that substantially the same effects as in Example 1 were obtained.

As described above, in the dew condensation preventing structure of the above embodiment, the space 11 is formed by arranging the permeable plate material 10 with the predetermined gap h below the ceiling panel 3 and forming the space 11. An electromagnetic shutter 12 capable of introducing outside air into the space 11 is provided at an upper portion, and a ventilation fan 13 is provided at a lower surface side of the air-permeable plate 10 above the wall panel 2c. The upper part of the bathroom 1 (the air permeable plate 1) is interposed through the space 11 and the air permeable plate 10.
0, and the air can be exhausted from the ventilation fan 13 to the outside, and an air curtain can be generated on the ceiling portion of the bathroom 1. As a result, the air curtain makes it possible to reliably prevent the occurrence of dew condensation as described above.

In particular, since the electromagnetic shutter 12 for introducing dry outside air and the ventilation fan 13 are provided at substantially diagonal positions above the opposing wall panels 2a and 2c forming the bathroom 1, suction and introduction from the electromagnetic shutter 12 is performed. The outside air to be passed can be passed through substantially the entire area of the permeable plate member 10, so that the dew condensation on the ceiling portion due to the steam in the bathroom 1 can be more reliably prevented.

Further, since the permeable plate member 10 is provided below the ceiling panel 3, the inspection window 15 provided on the ceiling panel 3 is not visible from the interior of the bathroom 1, and the ceiling portion of the bathroom 1 is clean. It is possible to improve the design value in the bathroom, for example, by giving a sense of crispness. In particular, by forming the air-permeable plate 10 from a material having a light-transmitting property, the air-permeable plate 10 can be illuminated with the illumination light of the illumination device 14, so-called indirect illumination. By appropriately setting the color tone and the like, the interior of the bathroom 1 can be easily set to an atmosphere according to the preference of the bather, and the design value of the bathroom 1 can be further improved.

Further, the lighting of the lighting device 14 and the ventilation fan 13
And the operation of the electromagnetic shutter 12 are interlocked.
Since the air curtain is generated by automatically operating the electromagnetic shutter 3 and the electromagnetic shutter 12, a special operation for preventing dew condensation is not required, and the bathroom 1 excellent in usability can be obtained. Further, since the steam in the bathroom 1 hardly passes from the lower surface side to the upper surface side through the permeable plate material 10,
The dust contained in the steam is prevented from adhering to the permeable plate 10 as in the prior art, and the permeable plate 10 as a ceiling of the bathroom 1 is prevented.
Is suppressed, and maintenance such as cleaning of the bathroom 1 can be easily performed.

In the above example, the illumination device 14, the ventilation fan 13 and the electromagnetic shutter 12 are linked, but the present invention is not limited to this. For example, the ventilation fan 13 and the electromagnetic shutter 12 are connected to the intake hole 18 of the door 19. May be operated in connection with the opening / closing operation of. That is, the operation panel 20 provided in the vicinity of the door 19 is provided with a door intake hole opening / closing switch (not shown) capable of setting an opening / closing state of the intake hole 18 of the door 19. Indicates that the operation of the electromagnetic shutter 12 is prohibited and the "closed state"
And the ventilation fan 13 is set to the “operating state”. When the door intake opening / closing switch is "closed", the electromagnetic shutter 12 is set to the "open state" and the ventilation fan 1 is opened as described above.
3 is set to the “operating state”.

With this configuration, for example, when using a steam sauna in the bathroom 1 or when taking a bath in winter,
When the electromagnetic shutter 12 is opened and the ventilation fan 13 is operated by closing the air inlet 18 of the door 19 and operating the door air inlet opening / closing switch of the operation panel 20 by "close", outside air is sucked from the air inlet 18 of the door 19. Washing area 6 because it is not introduced
The bather in the room does not come into contact with the cold outside air sucked and introduced from the intake hole 18 of the door 19, and a comfortable bathing can be performed.

After bathing, the air inlet 18 of the door 19 is opened, and the door air inlet opening / closing switch of the operation panel 20 is opened, so that the electromagnetic shutter 12 is closed and the ventilation fan 13 is operated. The outside air in the dressing room is sucked through the air inlet 18 as shown by the arrow E in FIG. 2 and is exhausted to the outside through the bathroom 1 through the ventilation fan 13 as shown by the arrow D in FIG.
Ventilation in the bathroom 1 can be performed.

In the case of this embodiment, the intake hole 1 of the door 19
8 can be opened and closed not only manually but also mechanically.
Or the electromagnetic shutter 12 can be operated. In addition, the ventilation fan 13 and the electromagnetic shutter 12 can be operated in association with each other regardless of the lighting of the lighting device 14, and the lighting device 14, the ventilation fan 13, the electromagnetic shutter 12, and the intake hole 18 of the door 19 can be configured. It is of course also possible to operate singly.

In the above-described embodiment, the electromagnetic shutter 12 and the ventilation fan 13 are installed one by one on the ceiling of the bathroom 1 so as to be substantially diagonally opposed to each other. A ventilation fan 13 may be provided, or, for example, a plurality of electromagnetic shutters 12 (or a plurality of ventilation fans 13) may be provided for one ventilation fan 13 (or one electromagnetic shutter 12).

In the above-described embodiment, the ventilation fan 13 and the electromagnetic shutter 12 are installed on the opposing wall panels 2a and 2c.
Of course, it is also possible to install at b and 2d. Furthermore, the configuration (layout) in the bathroom 1, the installation members, the configuration of the intake port, and the like in the above embodiment are merely examples, and it can be said that various changes can be made without departing from the gist of each invention according to the present invention. Not even.

[0035]

As described above in detail, according to the first aspect of the present invention, the ventilation plate is provided with a predetermined gap below the ceiling, and the exhaust gas is disposed on the side wall below the ventilation plate. By activating the means, dry outside air is introduced from the intake port into the substantially closed space formed by the gap, and this outside air is passed from above to below the permeable plate material and exhausted from the exhaust means to the outside, An air curtain through which dry outside air flows can be generated on the ceiling of the bathroom. As a result, the vapor generated in the bathroom can be re-evaporated by contacting the air curtain, and the dew condensation on the ceiling of the bathroom can be reliably prevented. As a result, the design value in the bathroom can be improved.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the intake port and the exhaust means are provided on the opposed side walls, so that the intake port and the exhaust means are substantially within the enclosed space. The introduced outside air can flow through the entire area in the space, pass through the permeable plate material and be exhausted from the exhaust means,
An air curtain can be effectively generated in substantially the entire area of the bathroom ceiling, and the occurrence of dew condensation on the bathroom ceiling can be more reliably prevented.

According to the third aspect of the invention, in addition to the effects of the first or second aspect, the air inlet and the air inlet of the bathroom door are opened and closed in association with each other. When using a steam sauna, close the air inlet of the door and operate the ventilation fan with the air inlet open to prevent a decrease in high temperature and high humidity conditions in the bathroom. Bathing can be performed comfortably.

According to the fourth aspect of the present invention, in addition to the effects of the first to third aspects, the illumination device is installed above the light-transmitting and permeable plate member. The illuminating light allows the air-permeable plate member to be indirectly illuminated, and has effects such as further improving the design value in the bathroom.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a bathroom unit using a bathroom ceiling dew condensation preventing structure according to the present invention.

FIG. 2 is a schematic sectional view of the same.

FIG. 3 is a schematic sectional view of a conventional bathroom.

[Explanation of symbols]

 1 ... bathroom 2a-2d ... wall panel 3 ... ceiling panel 4 ... bathtub 5 ... ···· Couter 6 ········································································ Electromagnetic shutter 13 ······· Ventilation fan 13a ····· Fan 14 ······ Illumination device 15 ······ Inspection window 16 ······ Cover 18 ············································· Operation panel

Claims (4)

[Claims] 1. A permeable plate material provided below a ceiling of a bathroom with a predetermined gap, an air inlet through which outside air can be introduced into a substantially closed space formed by the gap, and the permeable plate material. Exhaust means installed on the side wall of the lower bathroom to exhaust the air in the bathroom to the outside, and allowing the outside air introduced from the intake port by the operation of the exhaust means to pass downward from above the permeable plate material. A structure for preventing dew condensation on the ceiling of a bathroom, which is configured to be able to exhaust to the outside. 2. The structure for preventing dew condensation on a ceiling of a bathroom according to claim 1, wherein said intake port and exhaust means are provided on opposite side walls of the bathroom. 3. The bathroom according to claim 1, wherein an openable / closable air inlet is provided in a door portion of the bathroom, and the air inlet is opened / closed in connection with an opening / closing operation of the air inlet. Structure to prevent condensation on the ceiling. 4. The bathroom ceiling according to claim 1, wherein the permeable plate has a light-transmitting property, and a lighting device is provided above the permeable plate. Anti-condensation structure.