JPS6120447Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a ventilation fan whose main body is equipped with two functionally independent blowers and which can ventilate two rooms at the same time.

Most of the ventilation fans of this type mentioned above are housed in the space behind the ceiling or within the wall structure, and the outer shell of the main body, which houses two blowers, is completely open on one side facing the indoor side. There is. It is not necessary to close the opening corresponding to one blower, but it is necessary to close the portion corresponding to the other blower used for ventilation of another room. The present invention relates to a blind cover that is attached to a part of the above-mentioned opening in a ventilation fan, and its purpose is to make the ceiling surface of the room in which the main body of the blind cover is installed match the wall surface. To provide a ventilation fan that does not give a feeling of discomfort.

Next, the configuration of the present invention will be specifically explained based on an embodiment shown in the drawings.

The ventilation fan as an application example of the present invention shown in FIG.
This device has a built-in unit that ventilates the room where the main unit is installed and other rooms at the same time. Two exhaust ports 4 are formed side by side on one side of the main body outer shell 1 in correspondence with the blowers 2 and 3, and an intake port 5 is formed on the side facing the blower 3 used for ventilation of other rooms. It is being A mounting flange 7 protrudes outward from the edge of the opening of the main body shell 1, which can be brought into contact with the indoor side surface of the mounting frame 6 in the ceiling. The inside of the main body outer shell 1 is divided into two parts by a central mounting plate 8, and for each part, blowers 2 and 3, which mainly consist of a motor 9, blades 10, and a fan casing 11, are arranged side by side. . The motor 9 of each blower 2, 3 is common, and is fixed to the mounting plate 8 with its rotating shaft horizontally, and the blades 10 of each blower 2, 3 are fixed to the mounting plate 8 with the rotating shaft extending horizontally. They are each installed. The free end side of the mounting plate 8 is at a level that coincides with the lower end of the circumferential side that defines the opening of the main body outer shell 1, and substantially bisects the opening of the main body outer shell 1. At the free end of this mounting plate 8, a flange 12, which is the same as the mounting flange 7, projects laterally into the opening S2 on the side corresponding to the blower 3. This blower 3 is used to ventilate rooms other than the room in which the main body is installed, and the corresponding opening S2 of the outer shell 1 of the main body is connected to the blind lid 1.
It is blocked at 3. The other blower 2 is used to ventilate the room in which the main body is installed, and the corresponding opening S1 in the outer shell 1 of the main body serves as an air intake port. The blind lid 13 has a basic structure of a flat plate that corresponds in dimensions to the shape (usually a right-angled rectangle) defined by the mounting flange 7 formed around the opening portion S2 and the flange 12 of the mounting plate 8, and It is made of the same material as the ceiling board 14 of. The blind lid 13 is installed by tightening screws from its outer edge into screw holes formed in the mounting flange 7 and flange 12 surrounding the opening portion S2. Note that, since the main function of the blind lid 13 is to close the opening portion S2, forming the blind lid 13 from the same material as the ceiling plate 14 does not result in its function becoming insufficient. Therefore, ceiling board 1
If 4 is made of a material that allows ventilation to some extent, a ceiling plate 1 is placed on the surface side of the lid substrate that performs the sealing function.
Blind lid 1, such as joining a surface plate made of the same material as 4.
Only the condition of the surface of No. 3 is made to match that of the ceiling board 14. Thus, a grille 16 having intake holes 15 is attached to the opening S1 of the main body outer shell 1, which serves as another air intake port, and the original form of the ventilation fan is completed.

As is clear from the above description of the embodiments, the ventilation fan of the present invention ventilates two rooms at the same time using two built-in blowers. The grille and blind lid are installed separately in some parts, and the surface of the blind lid is made of the same material or has the same appearance as the ceiling board or wall board where it is installed, so it can be used as a small grill with less pressure. Not only can this be done, but the blind cover will blend in with the ceiling board, etc., and there will be less discomfort.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing a ventilation fan as an application example of the present invention in an installed state, Fig. 2 is a cross-sectional plan view of the ventilation fan, and Fig. 3 is a perspective view showing the attachment relationship between the main body outer shell and the blind cover. It is a diagram. Note that the same reference numerals in the figures indicate the same or equivalent parts. 1...Main body outer shell, 2, 3...Blower, 8...Mounting plate, 9...Motor, 13...Blind lid, 14
...Ceiling board, 15...Grill, S1, S2...Opening part.

Claims (1)

[Scope of utility model registration request] One side facing the room is open, and the interior is divided into two sections, each with one ventilation blower.The opening facing the room corresponding to one of the blowers in the main body outer shell has an intake hole. The opening facing the room corresponding to the other fan should have a surface made of the same material as the ceiling or wall board where it is installed, or A ventilation fan that is equipped with a blind lid having the same appearance and whose opening is closed by the blind lid.