JPS6328339Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a purified air blower that is attached to a ceiling to pass through air sent from an air conditioner or the like and discharge it indoors.

Prior Art FIG. 6 shows how to install an air conditioner for purifying indoor air. The air in room A is drawn from suction panel 1.
from the intermediate filter device 3 via the return duct 2
The temperature and humidity of the filtered air are adjusted by an air conditioner 4, and the air is guided to a purified air blower 8 via a main air supply duct 6 and a branch duct 7 arranged above the ceiling 5.

An example of this blower 8 is shown in FIG. Blower 8
A high-performance filter 10 is housed in the housing 9, and the purified air supplied from the air intake port 11 is further passed through the high-performance filter 10, and then released into the room from the air outlet 13 formed in the perforated plate 12. Ru.

Problems to be Solved by the Invention In this case, it may be necessary to adjust the amount of air blown depending on the mounting position of each blower 8 and the indoor situation. This adjustment means is generally performed by installing an adjusting damper 14 in the middle of the main air supply duct 6 or in front of the air intake port 11, and adjusting the opening/closing angle of this damper. This process must be carried out in advance, which is time-consuming, and therefore it is extremely difficult to make adjustments on a case-by-case basis in response to changes in the actual situation.

In view of this point, the present invention aims to make it possible to adjust the amount of air blown from inside the room.

Means for Solving the Problems In order to achieve the above object, the configuration of the present invention will be explained with reference to FIG. 1 corresponding to an embodiment.

The purified air blower 20 has an air filter 22
It is formed in a perforated plate 24 that is installed at the bottom and has a built-in air filter that allows the air to pass through. Excess air is blown out from the outlet 25. A damper 26 that can be opened and closed is provided between the filter 22 and the perforated plate 24 to regulate the amount of air flowing.
The operating portion 34 of the opening/closing member 31 is provided so as to protrude below the perforated plate 24, that is, into the room.

Function The present invention is constructed as described above, and the damper 26 is opened and closed by operating the operating section 34 of the opening/closing member 31 to regulate the amount of air flowing, and the operating section 34 protrudes from the perforated plate. It is easy to operate from indoors.

Embodiment FIG. 1 is a partially cutaway front view of a ceiling-mounted purified air blower 20 of the present invention. This air blower 20 has a high-performance filter 22 housed inside a housing 21, and an air intake port 23 connected to the branch duct 7 (see FIG. 6) on one side of the upper part of the housing 21. , and an air outlet 25 below.
A perforated plate 24 is attached.

A damper 26 is provided between the filter 22 and the perforated plate 24. The damper 26 is located on both side plates 2
7, 28 and a central flat plate 29, a butterfly plate 30,
30. When this damper 26 is made into a flat plate, it is preferable that its size be approximately similar to the size of the perforated plate 24, but if it is not necessary to reliably block the air blown into the room, it may have a slightly smaller area. . The illustrated example shows the latter case.

A damper opening/closing member 31 is attached to the central flat plate 29. This opening/closing member 31 is for raising and lowering the central flat plate 29, and consists of a screw rod 32 and a nut 33 attached to the central flat plate 29. The screw rod 32 is rotatably fixed to the perforated plate 24, and has a hexagonal tip. An operating section 34 is provided to protrude outward (ie, into the room) from the perforated plate 24.

Reference numeral 35 denotes a guide rod having a channel or the like planted on both sides of the flat plate to guide the elevation and descent of the central flat plate 29, and cutouts 36 into which the guide rods 35 are fitted are formed on both sides of the central flat plate 29. ing. Reference numeral 37 denotes a guide rail having an angle member or the like for guiding the movement of the side plates 27, 28.

In the above configuration, when blowing air into the room from the air outlet 25, a spanner or the like is applied to the operation part 34 formed at the tip of the opening/closing member 31, and the screw rod 3
2, thereby raising the central plate 29. As a result, the side plates 27 and 28 are pulled up at the attachment part by the butterfly plate 30, and the free end side hangs down due to its own weight, moves inward along the guide rail 37, and the side plates 27 and 28 are inclined (see Fig. 1). and Figure 5),
The air sent in from the air intake port 23 is passed through the filter 22, and is indicated by the arrow 40 in FIG.
As shown in FIG. 2, some of the air flows directly toward the perforated plate 24, and the other portion detours inward from both sides of the damper 26, faces the perforated plate 24, and is blown out from the air outlet 25.

When the amount of air blown out is regulated, the central plate 29 is lowered by rotating the screw rod 32 in the opposite direction, and the side plates 27 and 28 are accordingly spread apart to cover the perforated plate 24, thereby reducing the amount of air blown out. to regulate.

Although this embodiment shows a structure in which some air is blown out from the periphery of the perforated plate even when the perforated plate 24 is shaped like a dish and the damper 26 is pulled down to form a flat plate, it is important to ensure that the air is not completely blocked. When you wish,
The air outlet 25 can be easily closed by omitting the formation of the air outlet 25 on the peripheral edge of the perforated plate 24 or by making the perforated plate 24 into a flat plate shape.

Effects of the invention As described above, according to the present invention, a damper is provided between the perforated plate forming the air outlet and the filter, and the operating part provided at the tip of the opening/closing member for the damper protrudes from the perforated plate. Since the damper is opened and closed by operating the damper, the amount of air can be easily blown out and adjusted from within the room.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of a purified air blower according to the present invention, FIG. 2 is a sectional view taken along the line X-X in FIG. 1, and FIG. 3 is a partially cutaway right side view.
Figure 4 is a diagram explaining the opening and closing operation of the damper, Figure 5 is a diagram explaining the operation when the damper is opened, Figure 6 is a diagram explaining the installation procedure of the air conditioner, and Figure 7 is a partially cutaway diagram of a conventional purified air blower. FIG. 20 is a purified air blower, 22 is a filter, 24
25 is a perforated plate, 25 is an air outlet, 26 is a damper, 31 is an opening/closing member, and 34 is an operating section.

Claims (1)

[Scope of utility model registration request] The device has a built-in filter for excess air, passes the incoming air, and releases the excess air into the room from an outlet formed in a perforated plate, and a damper that can be opened and closed is provided between the filter and the perforated plate. A ceiling-mounted purified air blower, characterized in that the operation part of the opening/closing member of the damper is provided so as to protrude downward from the perforated plate.