JPS6214516Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ventilation fan for ducts, and allows installation of the ventilation fan for ducts even in buildings that do not have an attic in order to keep the height of the building low. In addition, indoor wiring can be led in from either side of the wall to which it is attached.Furthermore, it does not disturb the interior of the room where it is installed, is unobtrusive, and achieves natural ventilation without making you aware of the existence of the ventilation fan. purpose.

In recent years, when building buildings, there are many cases in which the height of buildings is restricted due to sunlight rights issues. but,
On the other hand, when considering the effective use of land or the construction cost per floor area, it becomes necessary to increase the number of floors.
For this reason, the height of each floor is kept low and there are many cases where no attic space is provided. However, as shown in Fig. 1, in conventional duct ventilation fans, the main body 101 always protrudes into the ceiling, and work is required to connect it to the duct 102 in the ceiling. It was impossible to install. In addition, because conventional duct ventilation fans are fitted with different materials or designs on one surface, the ceiling, they rarely blend well with the ceiling, making them very noticeable and disrupting the interior of the room. There were many.

The present invention is intended to eliminate the above-mentioned drawbacks of the conventional art, and embodiments thereof will be described below with reference to FIGS. 2 to 6.

In Figures 2 to 5, 1 is a lower plate to which a mounting leg 3 to which an electric motor 2 is attached is fixed, 4 is a blade that is rotated by the electric motor 2 and is used to discharge air from the outlet 5, and 6 is a blade that directs the wind. 4, and is integrally formed in the center of the lower plate 1. Reference numeral 7 denotes a back plate having a roughly L-shape so as to be attached at a position where two wall surfaces intersect. A discharge port 5 is provided on the back plate 7, and a lower plate 1 and an upper plate 8 are attached thereto. 9 is a flat portion provided at the L-shaped bent corner of the back plate 7;
Reference numeral 0 denotes a hole provided in the flat part 9 to draw indoor wiring, and a bushing 11 is attached to protect the covering of the indoor wiring passing through. 12 is the back plate 7
The fixing mounting hole 13 provided in the back plate 7 is a sub-discharge port provided in the back plate 7, and when the other discharge port is used, it is covered with a blind plate. Reference numeral 14 denotes a sub-discharge port provided on the upper plate 8, and when other discharge ports are used, they are covered with a blind plate. 15 is the front plate, back plate 7, upper plate 8
It is fixed with fixing screws 16 to a frame made of Reference numeral 17 indicates the ventilation fan body which is surrounded by the lower plate 1, upper plate 8, back plate 7, and front plate 15 and has an electric motor 2 and blades 4 inside, 18 is the attic of the room in which the ventilation fan body 17 is installed, and 19 is the ventilation fan body in the same room. The ceiling surface, 20 is the wall surface through which the discharge duct in the same room passes, 21 is the wall surface perpendicular to the wall surface 20, and 22 is the indoor wiring drawn into the ventilation fan body 17, which direction is shown by the solid line or the broken line. Wiring is possible even from the
23 is an outdoor hood attached to the outside wall to protect from the rain.

To install this duct ventilation fan, first install the wall surface 2.
A hole is made in 0 and a duct is passed through, one end of the duct is connected to the discharge port 5, and the other end is connected to the outdoor hood 23. Then, attach the back plate 7 to the wall surface 20 using the mounting holes 12.
and 21 with screws. At that time, the L of the back plate 7
Indoor wiring is led in through a hole 10 provided in a flat part 9 of a bent corner part of the letter shape, and protected with a bushing 11. Thereafter, the front plate 15 is fixed with fixing screws 16. Therefore, as shown in FIG.
Since there is no protrusion into the attic 18 and no duct piping is required in the attic 18, the ventilation fan main body 17 can be installed even in buildings with a low attic or buildings without an attic. In addition, as shown in FIG. 5, depending on the situation of the indoor wiring at the site, the indoor wiring 2 can be
2 can be drawn into the ventilation fan main body 17. Furthermore, depending on the situation at the site, indoor wiring can be led in from either above or below along the corner where the walls intersect. Also,
Figure 6 is a diagram of an example of installation construction, in which 24 and 25 indicate the walls of the room where the duct ventilation fan is installed, 26 indicates the ceiling of the same room, and 24 and 25 indicate the ceiling of the same room.
Items with the same numbers as those in Figures 5 to 5 indicate the same parts. As shown in the figure, since it is attached to the corner where the wall surface 24 and the wall surface 25 intersect, it is easy to harmonize with the interior, is less noticeable, and does not disturb the interior of the room.

As described above, according to the present invention, it is possible to install a duct ventilation fan even in a building with a low ceiling or a building without a ceiling, and it can also be installed from either orthogonal wall surface depending on the condition of the indoor wiring at the site. Also, along the area where the walls intersect,
Indoor wiring can be pulled in extremely easily from either above or below without touching the ventilation fan itself. Furthermore, since the ventilation fan itself is attached to the corner where the walls intersect, it is easy to harmonize with the interior, is inconspicuous, does not disturb the interior of the room in which it is installed, and achieves natural ventilation without making you aware of its existence. It is effective.

[Brief explanation of the drawing]

Fig. 1 is an installation diagram of a conventional duct ventilation fan, Fig. 2 is a partially cutaway perspective view of a duct ventilation fan according to an embodiment of the present invention, Fig. 3 is a perspective view from the rear of the same, and Fig. 4 is FIG. 5 is an installation diagram seen from the same side, FIG. 5 is an installation diagram seen from the top, and FIG. 6 is an installation diagram seen from the indoor side. 1...Lower plate, 2...Electric motor, 4...Blade, 5...
...Discharge port, 6... Orifice, 7... Back plate, 8...
... Upper plate, 9 ... Flat part, 10 ... Hole, 12 ... Mounting hole, 15 ... Front plate, 17 ... Ventilation fan body, 22
...Indoor wiring.

Claims (1)

[Scope of utility model registration request] The ventilation fan includes a blade provided in the ventilation fan body and rotated by an electric motor, an orifice formed in the body to guide wind to the blade, and an outlet provided in at least one of the back plate and the top plate of the ventilation fan body. A ventilation fan for a duct, wherein the back plate of the ventilation fan main body is formed into a substantially L-shape, a flat part is provided at the bent corner of the L-shape of the back plate, and a hole for leading in indoor wiring etc. is provided in the flat part.