JPH04198654A - Panel unit type ventilation duct - Google Patents

Abstract

PURPOSE:To facilitate a working operation and further facilitate a maintenance work for a blowing port and a damper device by a method wherein the damper device for use in adjusting an amount of air blown from the blowing port is disposed in a terminal end duct panel. CONSTITUTION:Air conditioning in each of living rooms and a corridor set from blowing ports 21b, 22b and 23b is carried out separately by adjusting air blowing amount from each of the blowing port 21b, 22b and 23b with damper devices 30, 30a. In the event that an air conditioning is carried out only at the first floor and the second floor does not require any air conditioning, a suction air volume for every floor is adjusted at recovery ports 43 and 44, a changing-over of air conditioning for every floor is carried out to perform a changing-over to an air conditioned state corresponding to a request. Since damper devices 30 and 30a are disposed more rearwardly than the blowing ports 21b, 22b and 23b, a cleaning not requiring any cleaning and preventing any dew formation can be attained without being prohibited by the damper devices 30 and 30a.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a panel unit type ventilation duct in which a ventilation duct is constructed by connecting hollow box-shaped duct panels, and in particular, This invention relates to a panel unit type ventilation duct in which a damper device is installed behind the outlet.

[Conventional technology] In recent years, industrialization of prefabricated houses has progressed, and panel bodies are manufactured in factories by attaching face plates to both sides of a frame assembled in a rectangular frame shape, and these are then transported to the construction site. They are assembled to construct houses. Furthermore, in the factory Z, multiple panel bodies are joined together to produce floors, walls, etc., and panel bodies are assembled into a box shape to create floors, walls, etc.
Construction methods have also begun in which a room consisting of a ceiling is manufactured as a unit, and these floor, wall, or box-shaped units are installed on site.

On the other hand, in such prefabricated houses, as airtightness has improved, the importance of air conditioning equipment such as ventilation and heating and cooling in each room has increased.

Conventionally, simple air conditioning has been done by installing air conditioners and ventilation fans in each room, but in order to improve operational efficiency and consolidate installation space, various air conditioning functions have been integrated into one unit. Attempts have been made to construct branch-like ducts leading from an integrated central aerial unit to each room of a building, supplying air that has been conditioned to a predetermined condition and air-conditioning each room. With such a central air conditioning system that supplies conditioned air, it is possible to omit the indoor units for each room and the refrigerant piping that leads to each room, and the air ducts can be easily constructed and constructed, making it possible to reduce weight and cost. becomes. In addition, since the air itself is supplied, in addition to the cooling, heating, and dehumidifying functions performed by a normal air conditioner, ventilation and air blowing can also be performed, and the supplied air can also be filtered. It becomes possible to intensively and efficiently perform advanced air conditioning such as electrostatic adsorption of dust, sterilization, component adjustment of oxygen and carbon dioxide, and addition of fragrance.

[Problem to be Solved by the Invention 1] By the way, the branch-like duct used in the above-mentioned central air conditioning system is usually constructed by sequentially connecting pipes. It is desirable that these pipes be buried within the structure of the building, such as the walls and floors, so that they are not exposed inside the living room and spoil the appearance. In addition, when air conditioning is performed using an integrated air conditioner, each room will be controlled to approximately the same temperature, so in order to independently adjust the temperature etc. in each room, a damper device must be installed at the air outlet. This is done by controlling the amount of air sent from the air conditioner.

Therefore, in a duct using such pipes, each connection operation becomes complicated. In addition, the connection work of these branch ducts and the installation of damper devices must be performed separately after assembling structures such as walls and floors, resulting in an unavoidable decrease in work efficiency. . In addition, the air outlet is
The damper device is often installed on the ceiling or upper part of the wall, so installing the damper device on the air outlet must be done at a high position, and when installing it on the ceiling, the work must be done with the damper facing upwards, which is said to be inefficient. There was a problem.

Furthermore, since the inside of the air outlet is directly exposed to warm or cold air sent from the air conditioner, there is a high possibility of condensation forming due to the difference in temperature between the inside of the room and the living room.

Therefore, it may be necessary to take measures such as applying a coating to prevent condensation inside the air outlet, but if a damper device such as a general louver type or anemo type is installed,
The damper device is installed at the outlet or adjacent to the outlet, so after installing the damper device,
The structure of the outlet became complicated, and it was difficult to take measures against condensation.

Furthermore, when a damper device is attached to the air outlet, the design of the grille fitted into the air outlet is determined by the structure of the damper device, making it difficult to create a sophisticated design for the air outlet.

Furthermore, if the air outlet is installed on the floor of the living room, debris, dirt, etc. will inevitably fall into the air outlet, but if a damper device is installed at the air outlet or below the air outlet, It was difficult to remove dust without removing the damper device, and cleaning was time-consuming. Furthermore, the inside of the air outlet is likely to become unclean, and the air sent out from there may also be contaminated, which may pose a health hazard.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a panel unit type ventilation duct which is easy to construct and whose air outlet and damper device are easy to maintain.

[Means for Solving the Problems] In order to solve the above object, the present invention provides a method for providing ventilation paths in a panel body such as a prefabricated house where structures such as walls and floors are constructed by arranging panel bodies. The panel body of the part is a hollow box-shaped duct panel, and openings are provided at the connecting end surfaces of the duct panels, and the air outlet provided in the end duct panel from the air conditioner inside the series of duct panels. This is a panel unit type ventilation duct with a conduit that allows ventilation up to the point where the end of the duct panel is provided with a damper device that adjusts the amount of air blown from the outlet. The adjustment blade and the driving part of the blade are integrally formed, and are inserted through the air outlet and are installed behind the air outlet so as to block the ventilation path. .

[Operations] According to the above configuration, appropriate panel units and duct panels are prepared in advance according to the building to be constructed, and these panels are combined and arranged in line at the site to form walls, floors, etc.

At that time, the duct panels are arranged in a panel unit so as to form a predetermined path, the joint end faces of the duct panels are brought into close contact with each other, and the interiors of each are communicated through openings provided in the joint end faces. , A series of pipes are formed according to the arrangement of the panel groups, and a ventilation duct is constructed. Therefore, when assembling the panels, the ventilation ducts are connected at the same time, which is easy to install, and there is no need to install separate pipes, etc., since the duct panel box itself becomes an air passage. do not have.

In addition, when installing the air outlet of the end duct panel, a pre-integrated damper device is inserted from the air outlet.
It is easy to install as it only needs to be installed behind the air outlet. Further, since the damper device is installed behind the air outlet, the damper device does not interfere with cleaning the inside of the air outlet or applying a coating for preventing condensation. Further, maintenance is easy because the damper device can be maintained by removing the integrally molded duct device and taking it out from the air outlet.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

1 to 5 show embodiments of the present invention, and as shown in these drawings, the house A of this embodiment is
- Each of the first and second floors has a plurality of living rooms 1.1 (indicated by large frame lines in the figure), a hallway 2 leading to each, and a staircase 3 connecting the first and second floors, and - a second floor that also serves as the floor ceiling. The floor surface 4 is constructed by arranging a plurality of panel units 5.

In order to condition the air inside the house A, an integrated central air conditioning unit 10 is installed along the outer wall. This air conditioning unit 10 is an integral structure of a plurality of functional modules that perform heating and cooling, dehumidification, ventilation, air purification, etc., and sucks air from inside the house from the suction side 11, and processes it using each module. , air that has been conditioned in advance to a desired state is supplied into the house A from the blowout side.

Furthermore, in order to blow the pre-conditioned air supplied from the integrated central air conditioning unit 10 to each living room 1 and the hallway 2, a branch-like structure that branches into a plurality of branches is made using the space on the second floor floor 4 of the house A. A ventilation duct 20 is configured.

As shown in FIG. 2, the ventilation duct 20 includes a plurality of main duct panels 2 connected to the outlet side 12 of the air conditioning unit IO.
1, 2]... and a sub-duct panel 22 connected to the side surface thereof and reaching each living room l.

Each of these duct panels 21 and 22 is shaped like a box with a classified interior, and as shown in FIG. 1, is combined with other panel units 5 to serve as structural members constituting the second floor surface. The outer dimensions and strength of the panel unit 5 are comparable to those of the normal panel unit 5 originally placed in the area.

The main duct panel 21 has two openings 21a on each end face, and by arranging them along the corridor 2 in FIG. It is communicated. Among these, the main duct panel 21 on the side of the air conditioning unit 10 is connected to the outlet side 12 via the duct 13 on the outlet side 12, and each duct panel 2
1.22 is filled with conditioned air from the air conditioning unit IO. Further, an air outlet 21b is formed on the first floor ceiling side of the main duct panel 21 on the terminal side, and the conditioned air inside is supplied into the first floor hallway 2.

Note that the first floor ceiling height of the second hallway section is slightly lower than that of the first living room section, and the main duct panel 21 in this section is set to be relatively thick.

The sub-duct panel 22 has a width half that of the main duct panel 21, and has openings 22a formed in its end surface. However, since the ceiling height of the 11th living room is higher than the 2nd part of the hallway, the thickness of the sub duct panel 22 is slightly thinner than the main duct panel 2I, and even if the two sub duct panels 22 are arranged in parallel, it is equivalent to the main duct panel 21. It is not. These sub duct panels 22 are arranged in the portion facing the living room 1 in FIG.
Closed to the side of 1. Here, openings 21c, 21c are also formed on the side surface of the main duct panel 21 in a portion where the sub duct panel 22 is brought into close contact with the main duct panel 21.
The conditioned air filled in the inside of 1 is passed through each opening 21c.
, 22a, and the inside of the sub duct panel 22 is filled.

Further, an air outlet 22b is formed at the opposite end of the sub-duct panel 22 on the ceiling side of the first floor, and the conditioned air inside is supplied into the living room 1 on the first floor. Alternatively, a wall duct panel 23 is erected at the opposite end of the sub duct panel 22 (in order to supply conditioned air to the living room 1 on the second floor).

This wall duct panel 23 has its lower end surface connected to the sub duct panel 2.
Conditioned air is supplied from the sub duct panel 22 through openings 22c and 23a formed in the respective portions, and the conditioned air is supplied to the living room 1 on the second floor from the air outlet 23b formed at the top. It is designed to supply

Note that the wall duct panel 23 may be erected on the upper surface of the main duct panel 21 to supply conditioned air to the hallway 2 on the second floor. In addition, the air outlet 22b is provided on one side of the two sub-duct panels arranged in parallel, and the wall duct panel 23 is erected on the other side.
Conditioned air may be supplied to the living room 1 on the floor.

By the way, the wall duct panel 23 is a wall panel unit (as shown in the diagram) that constitutes the walls of the living room 1 and the hallway 2 on the second floor.
It is arranged in a part that becomes the duct route in the wall panel unit, and is formed to have almost the same shape as the wall panel unit and to have the same strength.

Further, as shown in FIGS. 3 and 4, an air outlet 22d is provided on the top surface of the end of the sub duct panel 22 (or the main duct panel 21) to supply conditioned air to the living room 1 on the second floor. You can also do this.

Air outlet 2 inside each duct panel 21, 22, 23
Damper devices 30, 31 are provided behind or below lb, 22b, 22d, and 23b so as to block the ventilation path.

The damper device 30.30a (the damper device!30a is formed with a long width for the main duct panel 21) is a third
As shown in the figures to FIG. 5, the air outlets 21b, 22b,
Each duct panel 2+ from 22d and 23b.

22.23 (The figure shows the sub-duct panel 22)
Air outlets 21b and 22b are provided for insertion into the interior.

It is surrounded by a rectangular frame 31 formed a little smaller than 22d and 23b.

This frame body 31 is opened in the front and back direction and has an air conditioning unit l.
Conditioned air sent from O can pass through.

Note that the size of the frame 31 is the same as that of each duct panel 21.2.
2.23 When installed inside the duct panel 21.2
2.23 It needs to be formed in a size that almost blocks the cross section of the internal ventilation passage.

Inside this frame 31, rectangular blades 32 for adjusting the volume of air sent from the air conditioning unit IO are rotatably centered around a rotating shaft 33 that passes horizontally through the center of the damper device 30. It is supported and provided.

When the blade 32 becomes vertical, -
The ventilation passages of the duct panels 21, 22, and 23 are completely closed, and when the panels are horizontal, they are fully opened.

This operation from fully closed to fully open is performed by a damper drive device 34 provided at one end of the damper device 30 and having a motor 34a and the like.

Therefore, by installing the damper device 30 together with the frame 31, the damper blades 32 and the drive device 34 can be installed at once in a cassette manner.

Each outlet 2+, 22.23 has a slit 35.
A grill 35 having a, 35a, . . . is fitted therein.

In addition, each duct panel 21, 22, 23 houses a built-in cable (not shown) inside along the longitudinal direction, and this cable is connected to the back side near each opening (the side that is not exposed indoors during installation). is connected to a connector (not shown) arranged on the surface of each duct panel 2], 22.23
After assembling and connecting them as a duct 20, each connector is successively connected from the outside with a connecting cable, thereby forming a series of wiring along the assembled duct 20.

Through such wiring, the damper device 30 and the like of each part can be centrally controlled from the central air conditioning unit IO, and by placing an operation unit etc. in each room I and connecting it to nearby wiring, the damper device 30 of each room 1 can be controlled. operation, remote control of the central air conditioning unit 10, etc. are possible.

Returning to FIG. 1 and FIG. 2, in order to return the air inside the house A of the integrated side central air conditioning unit 10, the air conditioning unit IO
A recovery pipe 40 is connected to the suction side 11 of the housing A, and this pipe 40 is introduced into the house A and extends under the floor surface to the third part of the stairs. This collection vibe 40
is branched into a pipe 4 on the -P1 side and a vibe 42 on the second floor side at the stairway 3 section. Of these, the − floor side pipe 41 is connected to the first floor side collection port 43 opened on the riser surface of the lowest step of the stairs 3, and can suck and collect indoor air near the first floor floor from this collection port 43. be.

The second-floor pipe 42 is connected to a second-floor recovery port 44 opened in the riser of the top step of the stairs 3, and is capable of sucking and absorbing indoor air near the second-floor floor surface 4 through the recovery port 44. The recovery ports 43 and 44 on each floor are each equipped with a suction air volume adjustment mechanism, so that the suction air volume on the - floor and the second floor can be adjusted individually.

In the present embodiment configured in this way, conditioned air that has been preliminarily set at a desired temperature, humidity, and mixed with outside air is supplied from the outlet side 12 of the central air conditioning unit 0; By blowing air from each air outlet D21b, 22b, 22d, and 23b through the main duct panel 2], the secondary duct panel 22, and the wall duct panel 23, the air condition inside each living room 1 and hallway 2 on the - and second floors can be controlled. The air conditioning in the valley inside House A is performed.

On the other hand, as air is supplied, the air in each living room is collected in the hallway 2 of each floor through doors and appropriate ventilation slits, and the air on the - and second floors is collected through the first-floor collection ports 43.
Or the second floor side collection port 44 is suctioned and collected, and each pipe 4
The air is returned to the suction side II of the integrated central air conditioning unit IO through the channels 0, 41, and 42, whereupon the air is circulated, and after being sequentially conditioned to a predetermined condition, it is again supplied to the valley inside the house A.

The air conditioning condition in each living room 1 and hallway 2 is controlled by the damper devices 30, 30a from the air outlets 21b, 22b, 2lb, 22b, 22d, 23b.
By adjusting the amount of air blown from 2d' and 23,
It is done individually. In addition, in cases where air conditioning is applied only to the negative floor and not needed on the second floor, by adjusting the intake air volume for each floor at the collection port 43, 44, the air conditioning can be switched for each floor and the air conditioning condition can be adjusted according to the request. Switch to .

In addition, the damper device F30.30a blows out D21b, 22
b, 22d, 23b, so the air outlet 2 lb, 22b, 22d in the duct panel 21.22.23
, 23b portion is hollow, and the damper device 30.3
Cleaning, coating to prevent condensation, etc. can be performed without being disturbed by 0a.

And a damper device! 30. When repairing or cleaning 30a, use the damper device 30 that is integrally formed in a cassette type.
．． 30a is removed and the air outlets 21b, 22b, 22d,
Execute it outside from 23b.

According to this embodiment, there are the following effects.

That is, by arranging the duct panels 21.21 together with the normal panel units 5 during the installation of the second-floor floor surface 4, each duct panel 21.22 is connected at the same time, forming a branch-shaped ventilation duct 2o. Therefore, the construction of ventilation channels for air conditioning can be carried out extremely simply and in a short period of time.

In particular, compared to the conventional case where ventilation pipes, etc. are installed separately inside the panel unit 5, the work of inserting each pipe into each unit and the work of connecting the inserted pipes to each other can be omitted all at once. , construction efficiency can be greatly improved by reducing the number of steps.

In addition, with conventional ventilation pipes, etc., there is a high possibility that connection failures will occur because the connection work is performed in a narrow space inside the panel unit 5, but in this embodiment, the duct panel 2+,
22. When 23 are arranged, each opening 21a, 22
Mutual communication is carried out through a and 23a, and the connection can be made reliably.

In particular, when connecting, do not use adhesive with high viscosity in the opening 21.
By using it around a, 22a, and 23a, confidentiality can be ensured and a more reliable connection can be made.

Furthermore, during installation, a box-shaped duct panel 21.2
By preparing 2.23 in advance, the work during construction can be made easier.

Here, the duct panels 21, 22, 23 are box-shaped with approximately the same external dimensions as the normal panel unit 5, so that almost the entire cross-sectional shape of the units 21, 22, 23 can be used as a flow path. The flow rate can be increased even with the same external shape.

Furthermore, the sub-duct panel 22 can have a large flow rate relative to its external shape, and can also be used as half the width of the normal panel unit 5 to avoid unnecessarily enlarging the flow path at the end portion where the flow rate is low. Decrease in flow velocity and internal pressure can be prevented. Also,
By placing the main duct panel 21 in the 2nd part of the hallway and making it thicker for the auxiliary duct panel 22 that branches into the 1st part of the living room, the basic air flow rate before branching can be increased, resulting in high efficiency. Air distribution can be performed.

Furthermore, these duct panels 2+, 22, 23 can be replaced with the panel unit 5 as appropriate, so by adjusting the number of panels installed depending on the flow rate and pressure of the relevant part,
A ventilation duct 20 suitable for the air to be supplied can be formed.

On the other hand, in this embodiment, when the second floor floor surface 4 is installed, the duct panels 21 and 22 are interposed between each panel unit 5.
Since the predetermined ventilation duct 20 is formed, the internal space of the residential building structure can be effectively utilized.

In particular, the ventilation duct 20 is installed on the second floor floor surface 4 which also serves as the first floor ceiling.
Since the building is located inside the building, air can be supplied to the first and second floors at once through the ventilation ports formed upward and downward, thereby further improving space efficiency.

In addition, the main duct panel 21 is arranged in the corridor that runs through the house, and the sub duct panels 22 of each room l are arranged in the cross direction, so the sub duct panel 22 is placed in each room l.
It can be reliably connected to the side surface of the main duct panel 21 no matter where it is placed within the main duct panel 21. Therefore, the ventilation duct 20 can have a high degree of freedom in design, and can evenly supply air from the - number of central air conditioning units 10 to each part of the house.

Further, each of the air outlets 2 lb, 22 b, 22 d, and 23 b can appropriately adjust the air volume blown out by a damper device 30, 30 a, and the air conditioning state in each living room l and hallway 2 can be individually set. .

Further, the damper device 30.30a has an air outlet 21b.

Since it can be installed by inserting it into the duct panels 21, 22, 23 from 22b, 22d, 23b, it can be easily installed even after the duct panels 21, 22, 23 are installed, and the damper device 30, 30a can be installed. It can be easily replaced when it breaks down.

In addition, the damper device 30.30a is connected to the duct panel 21.2.
2.23 air outlet 2l b, 22b, 22d, 23
Since it is attached to the rear of the air outlet 22d, even if the air outlet 22d is provided on the floor, the inside of the air outlet 22d can be easily cleaned. Therefore, the air can be kept clean and will not harm human health. And duct panels 21, 22, 23 where dew condensation is likely to occur.
Since nothing is provided near the air outlets 21b, 22b, 22d, and 23b, the air outlets jl b,
Duct panels 21, 22 near 22b, 22d, 23b
．． Measures against dew condensation, such as applying a dew condensation prevention coating, can be easily applied to the inner surface of the duct panel 21, 22, 23 even after construction of the duct panel 21, 22, 23.

Furthermore, since the damper device 30.30a is not installed at the air outlets 2 lb, 22b, 22d, 23b and their adjacent positions, the air outlets 2 lb, 22b, 22d,
Restrictions on the design of the air outlet 23b are reduced, and the air outlet 2lb, 22b, 22d, 23b can be designed in a variety of designs, and the air outlet 2lb, 22b, which was a hindrance when designing the interior of the living room 1, is reduced. , 22d, and 23b can be utilized as part of the design of the living room 1.

Furthermore, the damper device can be installed without directly attaching the damper device 30, 30a to the air outlet 2 lb, 22b, 22d, 23b! 30, 30a as air outlet 2 l b, 22b, 22d,
By providing it behind the air conditioning unit 23b, a low pressure loss is required when air is sent into the living room l, so the load on the air conditioning unit can be reduced.

Additionally, each duct panel 21.22.23 is provided with built-in cables and connectors, each of which is connected to each panel 21.22.23.
22.23 is configured so that they can be connected sequentially with connection cables, and a series of wiring along the duct is extremely easy to install. In addition to central control, the system also includes an operation unit located in each room. It is also possible to easily remotely control the central air conditioning unit 10.

In addition, for the ventilation duct 20, a collection pipe 40, 41, 42 that continues from the stairway 3 section to the central air conditioning unit 10 is provided.
If the air supplied to each living room 1 and hallway 2 is collected from the stairway 3, there is no need to separately provide a collection duct or the like extending from each living room 1, etc.

Therefore, the inside of the second floor floor surface 4 can be used exclusively as a ventilation duct 20, and there is no problem such as multiple types of ducts intersecting, and the structure of the house can be simplified and construction can be made easier. .

Furthermore, the recovery pipe 40 that continues from the third part of the stairs to the central air conditioning unit 10 has pipes 41 on the − floor side and the second floor side,
42, and the air on the first and second floors can be collected separately from the collection ports 43 and 44 at the bottom and top of the stairs 3, respectively, so it is possible to perform so-called zoning, resulting in efficient air conditioning operation with no waste. can be done.

Note that the present invention is not limited to the above embodiments,
Each duct panel 2+, 22.2'3 may be configured in a box shape with a shape and dimensions corresponding to the normal panel unit 5, and its material and detailed structure may be selected as appropriate during implementation. .

In addition, in this embodiment, the damper device has a single blade for adjusting the air volume, and has a structure in which it rotates around its central axis, but the blade is rotatably supported not on the central axis but at its end. It may be openable and closable, or it may be a louver type in which a plurality of blades are arranged in parallel.

[Effects of the Invention] As explained above in detail, according to the panel unit type ventilation duct of the present invention, since the inside of the box-shaped duct panel is used as a flow path, there is no need to separately arrange a ventilation pipe etc. The structure and construction are simple, and the area of the flow path can be the same as the cross-sectional shape of the unit, so the flow rate can be increased.

By installing a damper device behind the air outlet, there is nothing installed in the duct panel facing the air outlet, making it easy to clean the area in the duct panel near the air outlet. . Therefore, the vicinity of the outlet in the duct panel can be kept clean, so that the air blown from the outlet can be kept clean and will not harm human health.

Moreover, since nothing is provided in the duct panel at a position facing the outlet, it is possible to easily apply dew condensation prevention measures such as a coating to prevent condensation on the inner surface of the duct panel near the outlet.

Furthermore, since the damper device is installed behind the air outlet in the duct panel, the design of the air outlet is not restricted by the damper device, and it is possible to design the air outlet with a variety of designs. The air outlet, which used to get in the way when designing the interior, can now be used as part of the design of the living room.

Furthermore, by installing the damper device behind the outlet instead of directly attaching it to the outlet, the load on the air conditioner is reduced because there is only a low pressure loss when sending air into the living room. be able to.

Also, when installing the damper device inside the duct panel,
Since the damper device can be inserted through the air outlet, the damper device can be easily installed even after the duct panel has been constructed, and if the damper device breaks down, it can be easily replaced or repaired.

[Brief explanation of the drawing]

1 to 5 are plan views showing one embodiment of the present invention. FIG. 2 is a perspective view thereof, FIG. 3 is a perspective view showing a damper device attached to the outlet of a duct panel, and FIGS. 4 and 5 are sectional views showing the damper device attached to the duct panel. 20 ... Panel unit type ventilation duct, 2
1... Main duct panel, 21b... Air outlet, 22... Sub-duct panel, 22b... Air outlet, 22d... Air outlet, 23... ...Wall duct panel, 23b... Air outlet, 30...
Damper device, 30a... Damper device, 32 ・
...Blade, 34 ...Drive part

Claims (1)

[Scope of Claims] Among the panel bodies of a prefabricated house, etc., in which structures such as walls and floors are constructed by arranging panel bodies, the panel bodies in the portions that serve as predetermined ventilation routes are hollow box-shaped duct panels, A panel unit type ventilation duct in which openings are provided at the mutually connecting end surfaces of the duct panels, and a conduit that allows ventilation to flow through the series of duct panels from the air conditioner to the outlet provided in the end duct panel. A damper device is provided in the duct panel at the end to adjust the amount of air blown from the outlet, and the damper device includes a blade for adjusting the air volume and a driving part of the blade. A panel unit type ventilation duct, characterized in that the duct is inserted through the air outlet and is installed behind the air outlet so as to block a ventilation passage.