JPH09112978A - Ventilation port for space in building frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the heat insulation performance by obliquely mounting the screen of a ventilation port, and so vertically suspending a thin film of the area sufficient to block the opening of the screen from the upper part of the screen so as to form a space between the screen and the film. SOLUTION: At the ventilation port mounted at a foundation 8, a screen 11 is inclined at the outside of a building, a thin film 12 is suspended from the inside of the screen 11, and a ventilating air gap is formed between the screen 11 and the film 12. The film 12 sensitively reacted with the wind, and when positive pressure is applied, the film 12 is largely fluctuated toward an underfloor space 5-C, and a large quantity of the air is introduced into the underfloor space. When negative pressure is applied, the film 12 is sucked to the outside to block the opening of the screen 11. Thus, the performance of the air cycle residence in summer can be largely improved, and the condensation at the ventilation port in winter or cooling from the port can be suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a space inside a body of an air cycle house for promoting ventilation of a space inside the body (a space in which a space under the floor communicates with a foot space on the first and second floors and a hut space with an inner wall cavity). This is related to the devising of the ventilation port for use.

[0002]

2. Description of the Related Art As shown in FIG. 1, an air-cycle house has a roof and a wall covered with heat insulating boards, a ventilation layer provided on the outside of the roof, a shed space on the inside, and a foot space on the first and second floors. A space (space inside the body) that connects the underfloor space with an inner wall cavity is provided, and the heat insulation board is equipped with an air damper with a check valve that automatically controls the flow of air in the ventilation layer, a roof damper, and an air intake. In addition, open-air ventilation with a check valve is installed to prevent outside air from entering the concrete of the cloth foundation and the air in the underfloor space from being extracted to the outside. The house is equipped with an open / close type ventilation opening with a check valve to prevent outside air from being blown into the house.In the winter, the ventilation openings attached to the foundation and the roof above are closed, and in the summer, There is a system to open it.

In the summer, outside air is introduced from the ventilation hole of the foundation, flows through the space inside the body such as the cavity of the inner wall, and is discharged to the outside from the ventilation hole of the roof or the gable wall. At this time, harmful chemical substances such as hot air, moisture, and formalin contained in building materials are released from the inside of the building to create a healthy living space. The air flow in the body space is made by the temperature difference when there is no wind, but when there is wind, it is promoted by wind force. In other words, the check valve promotes vertical ventilation of the internal space of the building by a system in which air is blown from the ventilation port of the foundation and air is vented from the cabin space by negative pressure from the ventilation port of the gable wall or roof. doing.

Therefore, in order to promote the ventilation of the space inside the body, it depends largely on the performance of the ventilation port attached to the foundation, the roof, and the end wall, especially the function of the check valve.

[0005]

In order to promote ventilation in the body space, it is necessary for the check valve to open so as not to obstruct ventilation when there is no wind, and for the check valve to react sensitively when there is wind. A conventional ventilation port (developed by the same applicant as the present invention) is closed by a check valve when there is no wind, or its effective opening is small even if it is opened. Furthermore, even in windy conditions, the check valve itself was heavy and the reaction was not sensitive.

[0006] The present invention provides a ventilator for the space inside the body, which has a check valve that does not block the opening of the ventilator when there is no wind and is sensitive to wind.

In the conventional ventilation port, the check valve also serves as the opening / closing lid. The non-return valve itself has a low heat insulation performance, and when it was closed in winter, dew condensation occurred on the ventilation port, and the inside of the building became cold from that part. The present invention aims to solve this problem by providing an opening / closing lid with high heat insulation performance.

[0008]

In order to achieve the above object, it is necessary that the check valve does not block the opening of the ventilation port when there is no wind. The present invention tilts the screen of the ventilation port, vertically hangs the thin membrane that serves as a check valve from the top of the screen, creates a gap between the screen and the thin membrane that serves as a check valve, and from this gap when there is no wind. Allowed sufficient ventilation.

The ventilation holes attached to the foundation make the screen tilt outside the building, and the thin membrane that serves as a check valve hangs inside the screen, forming a ventilation gap between the screen and the thin membrane. When there is no wind, outside air is sucked into the underfloor space from this void.

Since the thin film that serves as a check valve is made of a light material, it is sensitive to wind. When positive pressure is applied, the thin membrane that serves as a check valve shakes greatly toward the underfloor space, and a large amount of wind is introduced into the underfloor space. As soon as negative pressure is applied, the thin film is sucked to the outside to block the opening of the screen and prevent the air in the underfloor space from being sucked out, promoting the vertical air flow in the internal space such as the inner wall cavity. To do.

A ventilation port attached to a roof or a gable wall tilts the screen inside the building, and a thin membrane serving as a check valve is hung outside the screen, so that a ventilation gap is formed between the screen and the thin membrane. When there is no wind, the air in the hut space is pushed out from this void.

When a negative pressure is applied, the thin film that serves as a check valve sways greatly outward, and a large amount of air in the cabin space is sucked out. Immediately when positive pressure is applied, the thin membrane is pushed inward and closes the screen opening. With the above functions, the vertical air flow in the internal space such as the inner wall sinus is promoted.

In winter, all vents are closed,
The ventilation hole for the body space of the present invention has an opening / closing lid with high heat insulation in addition to the check valve. The lid is attached to the outside or inside of the screen.

[0014]

With the above-described structure, the check valve does not block the opening of the screen even in the summer or when there is no wind, so that the temperature difference ventilation of the internal space such as the inner wall cavity can be performed quickly. When there is wind, the sensitive reaction of the thin membrane that serves as a check valve promotes vertical ventilation of the internal space such as the inner wall cavity, and the hot air and humidity in the building and chemical substances contained in building materials are discharged to the outside. discharge.

[0015]

EXAMPLE FIG. 2 shows an example of a ventilation hole for the space inside the body which is attached to the foundation of the present invention. The slanted screen and the thin membrane that serves as a check valve project completely into the underfloor space. Therefore, the ventilation gap between the oblique screen and the thin membrane that serves as a check valve when there is no wind is also configured in the underfloor space, and ventilation efficiency is good. A heat insulating lid that can be opened and closed is attached to the outside of the screen. Alternatively, the screen may be provided, for example, inside the heat-insulating lid, and instead of the conventional diagonal screen, a frame member having an opening in a range where ventilation can be stopped by a thin film serving as a check valve can be provided.

FIG. 3 shows another embodiment of the ventilation hole for the body space which is attached to the foundation of the present invention. A slanted screen and a thin membrane that serves as a check valve are under the base. The ventilation gap between the diagonal screen when there is no wind and the thin membrane that serves as a check valve is also constructed under the base, but the ventilation frame is secured by widening the frame around the screen. The openable / closable insulating lid is attached to the outside of the screen, but may be attached to the inside.

FIG. 4 shows another embodiment of the ventilation hole for the space inside the body which is attached to the roof or the gable wall of the present invention. The slanted screen is tilted inside the building, and the thin membrane that serves as a check valve hangs outside the screen, forming a ventilation gap between the screen and the thin membrane. The ventilation gap between the diagonal screen when there is no wind and the thin membrane that serves as a check valve is constructed in the mounting frame, but the frame around the screen is wide to ensure the ventilation gap. Insulation lid that can be opened and closed,
Although it is attached inside the screen, it may be attached outside.

[0018]

Since the present invention is configured as described above, it has the following effects.

When there is no wind, a ventilation gap is formed between the screen and the thin membrane that serves as a check valve, and therefore has the function of speeding up the differential thermal ventilation of the body space.

Since the thin film that serves as a check valve is made of a light material, it reacts very sensitively to wind pressure, so that it enhances the consistency of vertical ventilation of the internal space of the body and the flow of air from the underfloor space to the cabin space. Promote.

As a result, the performance of the summer air cycle house (heat and moisture and the harmful chemical substances contained in building materials such as formalin are released to the outside of the building to improve the durability of the building and save energy, (Contributing to the improvement of the health of people who live) is greatly improved.

Even in the winter, since the heat insulation performance of the opening / closing lid is greatly improved, it is possible to suppress the dew condensation at the ventilation port and the cooling from the ventilation port.

[Brief description of the drawings]

FIG. 1 is a conceptual cross-sectional view showing a space inside a body of an air cycle house.

FIG. 2 is a cross-sectional view in which the ventilation opening according to the first embodiment of the present invention is attached to the foundation concrete.

FIG. 3 is a cross-sectional view in which the ventilation opening of another embodiment of the present invention is attached to foundation concrete.

FIG. 4 is a cross-sectional view in which the ventilation port of the embodiment of the present invention is attached to a gable wall or the like.

[Explanation of symbols]

Arrows indicate the flow of air. Reference numeral 1 is a ventilation hole for the body space of the present invention (for mounting the foundation). 2 is another ventilation hole for the space inside the body of the present invention (for mounting the foundation). 3 is a ventilation port for the space inside the body of the present invention (for mounting in a cabin space). Reference numeral 4 indicates a flow of air with a white arrow. 5 is the body space. 5-a is a hut space. 5-b is the foot space on the first and second floors. 5-c is an underfloor space. 5-d is an inner wall cavity. 6 is a roof. 7 is a wall.
8 is the basics. 9 is a room. 10 is an opening. 11 is a screen. 12 is a check valve. 13 is a heat insulating lid. 14 is the base. 15 is a mounting frame. 16 is a heat insulation board. 17 is a ventilation layer. 18 is an outer wall. 19 is Daihiki. 20 is joist.

Claims (4)

[Claims] 1. A screen of a ventilation opening is obliquely attached in order to promote ventilation of a space inside a body of an air cycle house (a space in which a space under the floor communicates with a space on the first and second floors and a space for a hut with an inner wall cavity). Ventilation port for internal space of the body constructed so that a thin membrane with an area sufficient to block the opening of the screen is hung vertically so that there is a space between the top of the screen and the screen, and the thin membrane sways back and forth. 2. The ventilation port for a body space according to claim 1, wherein the screen is inclined toward the outside of the building. 3. The ventilation port for a body space according to claim 1, wherein the screen is inclined toward the inside of the building. 4. The ventilation hole for a body space according to claim 1, wherein a heat insulating lid having an area sufficient to cover the entire screen is attached so as to be opened and closed.