JPH0972011A - Ventilation structure for wall panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve heat insulating effect by forming an outside air suction port and an exhaust port in a ventilation room formed between heat insulating layers in a wall panel and mounting an exhaust fan in the exhaust port. SOLUTION: Between the first heat insulating layer member 2 with protrusions 21 on the surface opposed to a structural plywood mainframe 1 and the third heat insulating layer member 4, the second heat insulating layer member 3 with ventilation holes 31 are arranged and held layer a panel frame material 5. The heat insulating layer members 2, 3, 4 held by the panel frame material 5 is fixed to the plywood mainframe 1 to form a wall panel with recessed grooves 11 at the upper and lower ends. The wall panel is fixed between columns P to form a wall and provide an exhaust fan at the upper end of the wall. In this way, outside air from the recessed grooves 11 at the lower end of the wall panel is passed through a ventilation room 23 between the plywood mainframe 1 and the heat insulating layer member 2 and exhausted by the fan to prevent condensation. An air layer formed in an air room 31 between the heat insulating layer members 2, 3 improves heat insulating effect.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall panel, and in particular, a column, a structural plywood body, a heat insulating material, etc., which have been conventionally constructed at the site, are integrally assembled in advance in a production factory,
The present invention relates to an outer wall panel that can improve work efficiency and is excellent in heat insulation effect and countermeasure against dew condensation.

[0002]

2. Description of the Related Art Conventionally, in order to enhance the heat insulating effect of a wall in a wooden house, it has been practiced to put a heat insulating material such as glass wool or foam polystyrene between the exterior material and the interior material. As a ventilation measure in the wall surface, after mounting the structural plywood body or board after the upper building of the frame,
This is done by attaching furring strips and braces to this, and then attaching an exterior material such as a siding board on this to obtain an air layer between the structural plywood body and the exterior material.
In addition, even when the wall is a unit-shaped assembled panel at the factory in advance, it has a similar structure such as providing an air layer by providing a furring strip or a streak in the panel. It is a thing.

[0003]

However, the above-mentioned conventional techniques are problematic in terms of construction period because of the time and effort required for carpentry when the conventional method is used. Also, in the case of a unitized panel, an air layer is made to exist in the panel wall, but this air is stagnant in the panel and it is insufficient as a measure against dew condensation. It was

The present invention has been proposed in view of the above-mentioned problems of the prior art. In the outer wall panel formed into a unit shape that can shorten the construction period on site, the heat insulating effect is high and the structural It is an object of the present invention to provide a ventilation structure for an outer wall panel that is highly robust and does not cause the wall thickness to become too thick, and that is free of dew condensation and has excellent air permeability.

[0005]

According to the present invention, a ventilation chamber is formed in a wall panel, an outside air suction hole is formed at a predetermined portion of the ventilation chamber, and an exhaust hole is formed at another portion, and An exhaust fan is attached to the exhaust hole.

Further, according to the present invention, the ventilation chamber is formed in the wall panel, the outside air suction hole is formed in a predetermined portion of the ventilation chamber, and the exhaust hole is formed in another portion of the ventilation chamber. The other end of the cool tube whose one end side opens in the ground is connected, and an exhaust fan is attached to the exhaust hole.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a trihedral view showing a wall panel used in the present invention, FIG. 2 is an exploded perspective view, and FIG. 3 is an explanatory view showing a ventilation structure in the wall panel of the present invention.

As shown in FIG. 1 and FIG. 2, the panel used for the ventilation structure in the wall panel of the present invention comprises a structural plywood body 1, a first heat insulating layer member 2, a second heat insulating layer material 3, Third
It is composed of the heat insulating layer material 4 and the panel frame material 5.

The structural plywood main body 1 is flat on both sides, and the thickness is not limited as long as it is a standard thickness that is usually used for structural walls. At both end portions (upper and lower end portions in the use state) of one surface of the structural plywood body 1, a plurality of concave grooves 11 opening to the end surface (in the illustrated example, five on each end side) are provided. ) It is formed in parallel. As shown in FIG. 1, the length of the recessed groove 11 is formed so as to communicate with a ventilation chamber 23 defined by the structural plywood body 1 and a first heat insulating layer member 2 described later. . Further, the depths of these concave grooves 11 are equal to those of the structural plywood body 1
Is determined in consideration of the strength of the plywood, for example, when the thickness of the structural plywood 1 is 12 mm, the depth is 3 m.
It is appropriate to set m. The concave groove 11 is not always necessary as described later.

The first heat insulating layer member 2 is formed in a plate shape, and a plurality of protrusions 21 are provided on the surface facing the structural plywood body 1. The protrusion 21 may be formed integrally with the first heat insulating layer member 2, or a piece separately formed from the first heat insulating layer member 2 may be integrally formed with the first heat insulating layer member 2 by adhesion. It may be attached to. The shape of the protrusion 21 is not limited, and may be a hemispherical shape, a cylindrical shape, or a rectangular shape. In the present invention, the protrusions 21 do not have to be regularly arranged, but may be randomly arranged.

The second heat insulating layer member 3 is for forming an air layer between the first heat insulating layer member 2 and the third heat insulating layer member 4, and a plurality of through holes 31 are regularly formed. Has been done. Although the shape of the through hole 31 is circular in the figure, the present invention is not limited to this and may be rectangular. Absent.

The second heat insulating layer member 3 does not need to have heat insulating properties by itself, and the air layer of the air chamber 31 formed by the second heat insulating layer member 3 serves as a heat insulating layer. To do. Therefore, the second heat insulation layer member 3
May use, for example, a paper honeycomb that does not have a heat insulating effect by itself, and may use a material capable of forming an air layer such as glass wool which is used as a general heat insulating material. .

The second heat insulating layer member 3 is formed into a plate shape. The heat insulating layer members 2, 3 and 4 are held in the panel frame member 5 in an accommodated state and fixed to the structural plywood body 1. Note that these members are fixed to each other with an adhesive.

The wall panel thus constructed is shown in FIG.
As shown in FIG. 5, the pillars P are fixedly held, and then the interior panel 6 is attached to the room side for finishing.

Next, the operation of the wall panel of the present invention will be described. Inside the wall panel of the present invention, the ventilation chamber 2 defined by the structural plywood body 1 and the first heat insulating layer member 2 is provided.
3 is a concave groove 11 formed in the upper and lower ends of the structural plywood body 1.
Since it communicates with the outside air via the, the air permeability inside the wall is good. Further, since the air chamber 31 is formed between the first heat insulating layer member 2 and the third heat insulating layer member 4, two layers of air layers are formed in the wall, and the heat insulating effect is obtained. Will be high. Further, since it is the heat insulating layer member that defines these air layers, there is a further heat insulating effect.

Further, according to the present invention, since the outside air can be taken into the ventilation chamber 23, the ventilation is good and the wall is free from dew condensation. In this case,
A mechanism may be provided in which air is forced to flow into the ventilation chamber, circulates in the ventilation chamber 23, and then is forced to be discharged outside the wall. That is, as shown in FIG.
If the exhaust fan 7 is provided at the upper end of the wall, the outside air sucked from the groove 11 at the lower end passes through the ventilation chamber 23 and is then exhausted from the exhaust fan 7, so that the air circulation is good. It is possible to effectively prevent the occurrence of dew condensation. However, the switch may be turned off so that the exhaust fan 7 is not operated during a period of high humidity such as during the rainy season.

Furthermore, it is known that the temperature in the ground remains almost constant throughout the four seasons, that is, it is lower than the temperature in the atmosphere in summer and warm in winter. Therefore, the so-called cool tube 8 that sucks the air in the ground
By communicating with the ventilation chamber 23, outside air having a temperature lower than the outside temperature in summer and a temperature higher than the outside temperature in winter can flow into the ventilation chamber 23, further improving the heat insulating effect. However, there is an advantage that the heating and cooling costs can be reduced. When the cool tube 8 is used, it is not always necessary to form the concave groove 11 in the structural plywood body 1, and a hole is directly formed in the structural plywood body, and the cool tube 8 is connected thereto. You may leave it like this.

[0018]

As described above, according to the ventilation structure of the wall panel of the present invention, the ventilation chamber is formed in the wall panel, and
An outside air inflow hole is formed on one end side of the ventilation chamber, an exhaust hole is provided on the other end side, and an exhaust fan is attached to this exhaust hole, so that fresh outside air can flow into the wall. It is possible to prevent dew condensation on the wall. Moreover, in the wall panel used in the present invention, since the air chamber separated from the ventilation chamber is formed outside the ventilation chamber, the heat insulating effect is enhanced.

[Brief description of drawings]

1A and 1B are explanatory views showing an example of a wall panel used in an embodiment of the present invention, in which FIG. 1A is a front view, FIG. 1B is a side sectional view in a state of being assembled between columns, and FIG. ) Is a plan sectional view of a state in which it is incorporated between columns.

FIG. 2 is an exploded perspective view of an example of a wall panel used in the embodiment of the present invention.

FIG. 3 is a side sectional view showing a ventilation structure of a wall panel of the present invention.

[Explanation of symbols]

 1 Structural Plywood Body 2 First Insulation Layer Member 3 Second Insulation Layer Member 4 Third Insulation Layer Member 6 Interior Panel 7 Exhaust Fan 8 Cool Tube

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical indication location E04B 2/56 611 E04B 2/56 611C 622 622B 622G 644 644H 644K 645 645B E04C 2/36 E04C 2/36 G E04B 2/00 2/52 A E04C 2/52 2/46 J

Claims (2)

[Claims] 1. A multilayer heat insulating layer is formed in a wall panel,
A ventilation chamber is formed between the heat insulating layers, an outside air suction hole is formed at a predetermined portion of the ventilation chamber, and an exhaust hole is formed at another portion, and
A ventilation structure for a wall panel, wherein an exhaust fan is attached to the exhaust hole. 2. A multi-layered heat insulating layer is formed in a wall panel,
A ventilation chamber is formed between the heat insulating layers, an outside air suction hole is formed at a predetermined portion of the ventilation chamber, an exhaust hole is formed at another portion, and a cool tube of which one end side is open in the ground is formed in the outside air suction hole. A ventilation structure for a wall panel, wherein the other end is connected and an exhaust fan is attached to an exhaust hole.