JP2004125198A - Ventilating structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilating structure superior in ventilation efficiency, having a simple structure, and reducing cost required for installation and maintenance in a building having a living room space. <P>SOLUTION: This ventilating structure 1 ventilates the inside of the living room space 11 of the building 10 having the living room space 11, and has a first air supply exhaust duct 12 for communicating with the living room space 11 from one side surface of the building 10, a second air supply exhaust duct 13 for communicating with the living room space 11 from the other side surface of the building 10 and air volume adjusting dampers 14 and 14' arranged in the first air supply exhaust duct 12 and the second air supply exhaust duct 13 and adjusting the air volume of an air current passing through the inside of these ducts. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a ventilation structure for a building having a living room space, and more particularly to a ventilation structure for ventilating each living room space in an apartment house or the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, an invention described in Patent Document 1 has been devised as a ventilation structure in a building having a living room space such as an apartment house.
As shown in FIG. 6, in the ventilation structure 101 of the invention, the main air supply duct 112 and the main air exhaust duct 113 are provided so as to penetrate the building 110 in the horizontal direction, and the air supply of the main air supply duct 112 is performed. The ports 112a and 112b and the exhaust ports 113a and 113b of the main exhaust duct 113 are provided so as to open on two opposite outer walls of the building 110, respectively.
Further, a branch supply duct 114 branched from the main supply duct 112 and a branch exhaust duct 116 branched from the main exhaust duct 113 are provided so as to communicate with the living room space 111.
[0003]
Then, outside air flows into the main air supply duct 112 from the air supply port 112 a or 112 b according to the direction of the wind, and this outside air is supplied into the living room space 111 through the branch air supply duct 114. When there is no wind, the sensor 117 detects this and activates the fan 119 to allow the outside air to flow from the duct 118 into the main air supply duct 112.
Next, the air in the living room space 111 is pushed out by the branch exhaust duct 116, flows into the main exhaust duct 113, and is exhausted outside from the exhaust port 113b or 113a.
In this way, ventilation in the living room space 111 is performed using natural wind.
[0004]
[Patent Document 1]
Japanese Patent No. 2897873 (FIG. 1)
[0005]
[Problems to be solved by the invention]
However, in the above ventilation structure 101, since the main air supply duct 112 and the main exhaust duct 113 need to be provided so as to penetrate between the facing outer walls of the building 101, the length of the duct becomes longer, and the installation of the duct becomes longer. However, there is a problem that it requires a lot of cost.
[0006]
An object of the present invention is to provide a ventilation structure which is excellent in ventilation efficiency, has a simple structure, and requires a small cost for installation and maintenance in a building having a living room space.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the invention according to claim 1 is a ventilation structure 1 for ventilating the interior of a living room 11 of a building 10 having a living room 11 as shown in FIG. hand,
A first air supply / exhaust duct 12 communicating from one side of the building 10 to the living room space 11,
A second air supply / exhaust duct 13 communicating from the other side of the building 10 to the living room space 11,
An air flow adjusting damper (14 ') is provided in the first air supply / exhaust duct 12 and the second air supply / exhaust duct 13, and adjusts the air flow of the air flowing therethrough. And
Here, the living room space 11 may be composed of one room, or may be composed of two or more rooms that can ventilate each other.
The living room space is not limited to a room that is continuously used by a resident, but refers to any room in a building.
[0008]
According to the invention described in claim 1, the outside air whose air volume has been adjusted by the air volume adjustment damper through the first air supply / exhaust duct or the second air supply / exhaust duct on the windward side according to the wind direction around the building is a living room. While flowing into the space, the air in the living room space can be pushed out into the second air supply / exhaust duct or the first air supply / exhaust duct on the leeward side and can be exhausted outdoors.
As described above, since the first air supply / exhaust duct and the second air supply / exhaust duct have both functions of the air supply duct and the exhaust air duct, the air supply duct and the exhaust air duct are made to penetrate between the facing outer walls of the building. The extension can be greatly shortened as compared with the case where they are provided.
Therefore, the ventilation structure using the natural wind can have a simple structure and can be installed and maintained at low cost.
[0009]
The invention according to claim 2 is, for example, as shown in FIG. 1, in the ventilation structure 1 according to claim 1,
An auxiliary exhaust duct 16 communicating from at least one side of the building 10 to the living room space 11,
A sensor 15 provided in the first air supply / exhaust duct 12 and / or the second air supply / exhaust duct 13 to detect an airflow of an airflow passing through the inside;
A fan 17 that is provided in the auxiliary exhaust duct 16 and that discharges air from the living space 11 to the outside of the building 10 through the auxiliary exhaust duct 16 when the air volume detected by the sensor 15 is smaller than a predetermined value. It is characterized by having been done.
[0010]
According to the second aspect of the invention, the same effect as that of the first aspect of the invention is obtained, and the airflow passing through the first air supply / exhaust duct and / or the second air supply / exhaust duct is detected by the sensor. When it is detected that the air volume is smaller than the predetermined value, that is, when the natural wind is not strong enough to ventilate the living room, the fan operates and the air in the living room is supplied to the building through the auxiliary exhaust duct. And outside air is drawn into the living room from the outside of the building through the first air supply / exhaust duct and the second air supply / exhaust duct.
Therefore, even when the natural wind is weak or when there is no wind, the room space can be properly ventilated.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.
[0012]
As shown in FIG. 1, the ventilation structure 1 according to the present embodiment is installed behind the ceiling of each of the dwelling units in order to ventilate the living room space 11 of each of the dwelling units of the building 10 which is an apartment house. .
Here, the living room space 11 is composed of two or more rooms that can be ventilated from each other (for example, two or more rooms partitioned by a door with an undercut, a door with a barb, etc.).
[0013]
The ventilation structure 1 includes a first air supply / exhaust duct 12 communicating from one side (for example, a northern outer wall surface) of the building 10 to the living room space 11 and the other side surface (for example, a southern outer wall surface) of the building 10. And a second air supply / exhaust duct 13 communicating with the living room space 11 from above.
[0014]
In the vicinity of each intake port of the first air supply / exhaust duct 12 and the second air supply / exhaust duct 13, the airflow of the airflow passing through the inside of the first air supply / exhaust duct 12 and the second air supply / exhaust duct 13 is adjusted. An air volume adjusting damper 14 or 14 'is provided.
[0015]
FIG. 2 is a perspective view showing an example 14 of the air volume adjustment damper, and FIG. 3 is a sectional view schematically showing the structure of the air volume adjustment damper 14.
As shown in FIGS. 2 and 3, the air volume adjustment damper 14 includes four substantially fan-shaped air volume adjustment blades 14a having flexibility, a stopper 14b, a lint 14c, and the like.
[0016]
The air volume adjustment damper 14 is provided such that the root of the air volume adjustment blade 14a is convex toward the living room space 11 side of the first air supply / exhaust duct 12 or the second air supply / exhaust duct 13.
When air flows into the air supply / exhaust ducts 12 and 13 from the outside in the direction toward the living room space 11 of the building 10 (the direction indicated by the arrow in FIG. 3), the air flow adjusting damper 14 and the air supply / exhaust ducts 12 and 13 and the air volume The airflow passes through a gap 14d between the adjusting blade 14a. At this time, the air volume adjusting blade 14a is bent in a direction to close the gap 14d by the pressure of the airflow. When the airflow becomes strong, the pressure acting on the airflow adjusting blades 14a also increases, and the gap 14d is further reduced, so that the airflow of the outside air flowing into the air supply / exhaust ducts 12 and 13 from outside is suppressed.
[0017]
FIG. 4 is a perspective view showing another example 14 ′ of the air volume adjustment damper, and FIG. 5 is a sectional view showing the operation of the air volume adjustment damper 14 ′.
As shown in FIG. 4, the air volume adjustment damper 14 ′ is connected to the air supply / exhaust ducts 12, 13 to form a part of the air supply / exhaust ducts 12, 13, and an inner diameter of the frame member 141. And a main blade 142 formed in a disk shape corresponding to the above.
[0018]
The main blade 142 is attached to the inside of the frame member 141 via a main blade rotation shaft 143 orthogonal to the axial direction of the frame member 141, and can be smoothly rotated about the main blade rotation shaft 143. ing.
A main blade stopper 145 is provided on the upper inner surface of the frame member 141, and restricts clockwise rotation of the main blade 142 in FIGS. 4 and 5 in a state where the main blade 142 closes the internal space of the frame member 141. It has become.
[0019]
When the living room 11 side of the main blade 142 with respect to the main blade rotating shaft 143 is the upper operating portion 142a and the outdoor side is the lower operating portion 142b (see FIGS. 4 and 5), the upper operating portion 142a side is the lower operating portion 142b side. The main blade rotating shaft 143 is set at a position slightly shifted from the center of gravity of the main blade 142 so as to be slightly heavier.
Therefore, in a state where there is no wind or when the main blade 142 receives little wind resistance and a small air flow rate, the main blade 142 tends to rotate counterclockwise, but this position is set at a position where the main blade 142 is almost horizontal. A small air volume stopper 146 such as a screw is provided on the inner surface of the frame member 141 so as to restrict the rotation.
As shown in FIGS. 4 and 5, on the lower surface of the upper operating portion 142a of the main blade 142, a wind receiving portion 144 for receiving an airflow flowing from the outdoor side to the living room space 11 in the air supply / exhaust ducts 12 and 13 is provided. It is protruding.
[0020]
As described above, the upper operating portion 142a of the main blade 142 is set slightly heavier than the lower operating portion 142b so that the upper operating portion 142a is lowered in the state of no wind and at the time of the small air flow. This may be realized by slightly shifting the position of the main blade rotating shaft 143 with respect to the main blade 142 from the center of the main blade 142, or by providing a weight (not shown) on the upper operation unit 142a. Is also good.
[0021]
The operation of the air volume adjustment damper 14 'thus configured will be described with reference to FIG. Here, the wind from the outdoor side (the right side in FIG. 5) is called a forward airflow, and the wind from the living room space 11 side (the left side in FIG. 5) is called a reverse airflow. Further, the description of the magnitude of the air volume is based on the forward airflow.
[0022]
When the air supply / exhaust ducts 12 and 13 have no wind or light wind, the upper operating portion 142a of the main blade 142 is heavier than the lower operating portion 142b, so that the main blade 142 tends to rotate counterclockwise. As shown in (a), the rotation is restricted by the small air volume stopper 146.
[0023]
When the inside of the air supply / exhaust ducts 12 and 13 has a small air volume to a medium air volume, as shown in FIG. 5B, air accumulates between the lower surface of the upper operating portion 142a of the main blade 142 and the air receiving portion 144, and The operation unit 142a starts ascending.
Further, when the upper operating portion 142a of the main blade 142 is raised, as shown in FIG. 5C, the upper space of the main blade 142 in the frame member 141 is narrowed from the windward side to the leeward side. Accordingly, the flow velocity of the wind passing through the upper space gradually increases from the windward side to the leeward side, and a larger lift acts on the upper operation part 142a than the lower operation part 142b.
As described above, when the amount of air flowing inside the air supply / exhaust ducts 12 and 13 increases and shifts from the small air volume to the medium air volume, the lift reaches the critical air flow rate for rotating the main blade 142, and the main blade 142 141 is rotated in the closing direction.
[0024]
When the amount of air flowing through the air supply / exhaust ducts 12 and 13 further increases, as shown in FIG. 5D, the main blade 142 rotates clockwise and almost hits the main blade stopper 145, so that the main blade 142 The air flow passing above and below is significantly reduced. Then, the lift acting on the upper operating portion 142a and the lower operating portion 142b is reduced, and the difference in the lifts is also reduced, so that the main blade 142 rotates slightly to the opposite side and the airflow passing above and below the main blade 142 is slightly reduced. To increase. Then, the upper operating portion 142a receives the lift again, and the main blade 142 slightly rotates in the direction to close the frame member 141, so that the air flow passing above and below the main blade 142 decreases. Thereafter, these operations are repeated while gradually attenuating, and the air flow is stabilized.
[0025]
By using the air volume adjusting dampers 14 and 14 ′ as described above, the amount of outside air flowing into the air supply / exhaust ducts 12 and 13 does not become too large even in a strong wind, and the cooling / heating efficiency in the living room space 11 is not reduced. A constant level of ventilation can be maintained.
[0026]
Further, the air volume adjustment damper is not limited to the above-described configuration, and may have any structure as long as it can adjust the air volume of the airflow passing through the supply / exhaust ducts 12 and 13.
[0027]
In addition, the ventilation structure 1 is provided in an auxiliary exhaust duct 16 communicating from one side (for example, the outer wall surface on the north side) of the building 10 to the living room space 11 and a second air supply / exhaust duct 13 and passes through the inside. A sensor 15 for detecting an airflow of the flowing air flow, and an auxiliary exhaust duct 16 provided in the auxiliary exhaust duct 16. And a fan 17 for discharging air.
[0028]
As described above, according to the ventilation structure 1 described in the present embodiment, the air volume adjustment damper 14 is provided through the first air supply / exhaust duct 12 or the second air supply / exhaust duct 13 on the windward side according to the wind direction around the building 10. The outside air whose air volume is adjusted by (14 ′) is caused to flow into the living room space 11, and the air in the living room space 11 is pushed out into the second air supply / exhaust duct 13 or the first air supply / exhaust duct 12 on the leeward side. Can be discharged outdoors.
As described above, since the first air supply / exhaust duct 12 and the second air supply / exhaust duct 13 have the functions of the air supply duct and the exhaust duct, the air supply duct and the exhaust duct penetrate between the facing outer walls of the building. The extension can be greatly shortened as compared with the case where it is provided in this way.
Therefore, the ventilation structure using the natural wind can have a simple structure and can be installed and maintained at low cost.
[0029]
Further, when the sensor 15 detects that the air flow rate of the airflow passing through the first air supply / exhaust duct 12 and / or the second air supply / exhaust duct 13 is smaller than a predetermined value, that is, when the living room space 11 is ventilated. When the natural wind of sufficient strength is not blowing, the fan 17 is operated, the air in the living room space 11 is exhausted to the outside of the building 10 through the auxiliary exhaust duct 16, and the first air supply and exhaust duct 12 and Outside air is drawn from the outside of the building 10 to the living room space 11 through the second air supply / exhaust duct 13.
Therefore, even when the natural wind is weak or when there is no wind, the ventilation of the living room space 11 can be appropriately performed.
[0030]
It should be noted that the present invention is not limited to the above embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the air volume adjustment dampers for adjusting the air supply amount are provided in both the first air supply / exhaust duct and the second air supply / exhaust duct. May be provided in both the supply / exhaust duct and the second supply / exhaust duct, or an air flow adjustment damper capable of adjusting both the supply and exhaust amounts of the first supply / exhaust duct and the second supply / exhaust duct. At least one of them may be provided.
In addition, it is needless to say that specific detailed structures and the like can be appropriately changed.
[0031]
【The invention's effect】
According to the invention described in claim 1, the outside air whose air volume has been adjusted by the air volume adjustment damper through the first air supply / exhaust duct or the second air supply / exhaust duct on the windward side according to the wind direction around the building is a living room. While flowing into the space, the air in the living room space can be pushed out into the second air supply / exhaust duct or the first air supply / exhaust duct on the leeward side and can be exhausted outdoors.
As described above, since the first air supply / exhaust duct and the second air supply / exhaust duct have both functions of the air supply duct and the exhaust air duct, the air supply duct and the exhaust air duct are made to penetrate between the facing outer walls of the building. The extension can be greatly shortened as compared with the case where they are provided.
Therefore, the ventilation structure using the natural wind can have a simple structure and can be installed and maintained at low cost.
[0032]
According to the second aspect of the invention, the same effect as that of the first aspect of the invention is obtained, and the airflow passing through the first air supply / exhaust duct and / or the second air supply / exhaust duct is detected by the sensor. When it is detected that the air volume is smaller than the predetermined value, that is, when the natural wind is not strong enough to ventilate the living room, the fan operates and the air in the living room is supplied to the building through the auxiliary exhaust duct. And outside air is drawn into the living room from the outside of the building through the first air supply / exhaust duct and the second air supply / exhaust duct.
Therefore, even when the natural wind is weak or when there is no wind, the room space can be properly ventilated.
[Brief description of the drawings]
FIG. 1 is a sectional view showing an example of a ventilation structure according to the present invention.
FIG. 2 is a perspective view showing an example of an air volume adjustment damper used for the ventilation structure according to the present invention.
FIG. 3 is a cross-sectional view schematically showing an example of a structure of an air volume adjusting damper used for a ventilation structure according to the present invention.
FIG. 4 is a perspective view showing another example of the air volume adjustment damper used for the ventilation structure according to the present invention.
FIG. 5 is a sectional view showing the operation of another example of the air volume adjustment damper used in the ventilation structure according to the present invention.
FIG. 6 is a sectional view showing an example of a conventional ventilation structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ventilation structure 10 Building 11 Living room space 12 First air supply / exhaust duct 13 Second air supply / exhaust duct 14 (14 ') Air volume adjustment damper 15 Sensor 16 Auxiliary exhaust duct 17 Fan

Claims (2)

A ventilation structure for performing ventilation in the living room space of a building having a living room space,
A first air supply / exhaust duct communicating from one side of the building to the living room space,
A second air supply / exhaust duct communicating with the living room space from the other side of the building,
A ventilation structure provided in the first air supply / exhaust duct and the second air supply / exhaust duct, and an air volume adjusting damper for adjusting an air volume of an airflow passing through the inside of the first air supply / exhaust duct. The ventilation structure according to claim 1,
An auxiliary exhaust duct communicating from at least one side of the building to the living room space,
A sensor provided in the first air supply / exhaust duct and / or the second air supply / exhaust duct, for detecting a flow rate of an airflow passing through the inside;
An exhaust fan that is provided in the auxiliary exhaust duct and that discharges air from the living room space to the outside of the building through the auxiliary exhaust duct when the air volume detected by the sensor is smaller than a predetermined value. Characterized ventilation structure.

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