JPH0532168Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a ceiling-mounted clean unit that can form a clean area in a part of the room.

[Conventional technology]

Conventionally, clean rooms were constructed using, for example,
As disclosed in Publication No. 45175, etc., partitioned 1
A HEPA filter is provided at the top or side of each room, and clean air is circulated through the HEPA filter.

[The problem that the idea aims to solve]

However, in such a conventional method, a clean room cannot be formed without one partitioned room, and therefore a clean area cannot be formed in a part of the room.

Also used in conventional clean rooms
Since the HEPA filter is a flat type, it could not be installed on the ceiling or part of the side. In other words, in areas where there is no HEPA filter,
Because clean air is not blown out, stagnation occurs,
It could not function satisfactorily as a clean room that requires high levels of cleanliness. Therefore,
HEPA filters had to be installed all over the ceiling or sides.

Therefore, when the HEPA filter is used to form a clean area in a part of the room, the installation structure becomes complicated and expensive due to the arrangement of the HEPA filter.

The present invention was devised to solve these conventional problems, and its purpose is to create a space where a clean area can be formed in a part of a special compartment without using the entire room. The purpose of the present invention is to provide a hanging clean unit.

[Means to solve the problem]

The ceiling-mounted clean unit according to the present invention has a suction port on the side surface and an opening on the bottom surface, and has a box body that is attached to the ceiling, a prefilter that is installed inside the suction port of the box body, and an opening on the bottom surface of the box body. A chamber with an inlet on the side and installed over the opening of the box to form a gap with the top surface of the box, and a chamber installed inside the chamber that allows air to flow into the box through the inlet. A blower that sucks air into the chamber through the chamber's intake port, a HEPA filter with a semicircular cross section that is installed on the bottom of the chamber and filters the air sucked into the chamber, and a curtain that hangs from around the box body. It was constructed based on the following.

In the present invention, it is preferable that the HEPA filter has curved sides on both sides of a clean room air filter on which no separator is installed. It is also desirable to install lighting equipment on the bottom of the box at a location away from the HEPA filter.

[Effect]

In the present invention, the box can be suspended from the ceiling of the room by hanging or directly attaching the ceiling side to the ceiling of the room. In this ceiling-mounted clean unit, the HEPA filter has a semicircular cross section, so the air forced by the blower is directed from the bottom of the box to the floor along the curve of the HEPA filter. It used to be blown out over an approximately 180° range, and it spread evenly throughout the entire clean unit. Therefore, a clean area can be formed in a part of the room.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

1 to 5 show a ceiling-mounted clean unit according to an embodiment of the present invention, and in the figures, 1 indicates a box body.

The box 1 is a hollow rectangular parallelepiped structure composed of an upper surface 2, a lower surface 3, and a side surface 4, and has, for example, a width of 180 cm, a length of 150 cm, and a height of 25 cm. Hanging fittings 5 for attachment to the ceiling are attached to the four corners of the upper surface of the upper surface 2 of the box 1. Further, a rectangular suction port 6 is formed on the side surface 4 of the box body 1. A prefilter 42 for removing coarse dust is attached to the inside of the suction port 6.

Further, inside the box body 1, a chamber 10 is disposed in the shape of a hollow rectangular parallelepiped with one side being oblique. The upper surface 11 of this chamber 10 and the box body 1
A gap 12 is formed between the upper surface 2 and the upper surface 2.
The lower part of the chamber 10 is larger than the opening 7 provided in the lower surface 3 of the box body 1. This chamber 10 has a suction port 13 on the upper plate 11.
is provided. A blower 20 is attached to the upper plate 11 so that the suction port 21 is located at the suction port 13. This blower 20
In this case, the discharge port 22 opens into the chamber 10 .

Furthermore, two lighting devices 30 are installed inside the box 1 adjacent to the chamber 10. This lighting device 30 has a lower surface 3 as the lower surface of the box body 1.
It protrudes toward the inside of the box body 1 so as to be flush with the surface.

Furthermore, a portion where the chamber 10 is provided is provided with a structure that hangs down from the lower surface 3 of the box body 1.
A HEPA filter 40 is installed.
This HEPA filter 40 is held by a support body so that the cross-sectional shape is approximately semicircular, and closing plates 41 are attached to both ends. As this HEPA filter 40, a clean room air filter without a separator was used.

Further, a curtain 50 is hung around the lower part of the box 1. As this curtain 50,
For example, antistatic vinyl curtains are desirable. In this example, the curtain 50 is attached to the entire periphery of the box 1 except for a portion on the front side.

Next, the operation of this embodiment configured in this manner will be explained.

First, the hanging fitting 5 attached to the upper plate 2 of the box body 1
It is attached to the ceiling of a room (not shown) via a.
This completes the installation of the ceiling-mounted clean unit T according to this embodiment.

When the blower 20 of this ceiling-mounted clean unit T is driven, the air blown out by the air conditioner in this room flows into the box 1 from the suction port 6 of the box 1 through the prefilter 42. The chamber 10 is sucked in from the suction port 21 of the blower 20 via the suction port 13 of the chamber 10.
It is blown out inside. The air blown into the chamber 10 passes through the HEPA filter 40 located below.
Due to the curved surface formed by the air, air is blown out from the lower surface 3 of the box body 1 toward the floor in a range of approximately 180°. At this time, since the surrounding area is surrounded by the curtain 50, the blown air evenly spreads throughout the ceiling-mounted clean unit T.

Then, air flows from the bottom of the curtain 50 to the box body 1.
The air flows toward the suction port 6 of the room, or is sucked in by the air conditioner in this room.

As described above, according to this embodiment, the air blown out from the air conditioner in the room is taken in,
By uniformly blowing out the air from the semi-circular HEPA filter into the ceiling-mounted clean unit T, a clean area can be created in a part of the general air-conditioned room.

Although we have explained the case where the room is air-conditioned, it is not possible to make the area where this ceiling-mounted clean unit T is installed function as a clean area even if it is installed in a general room that is not air-conditioned. be.

FIG. 6 shows a specific usage example of the ceiling-mounted clean unit T according to the present invention, which is installed on the ceiling 61 above an examination table 60 in a dental clinic. Thereby, the area of the examination table 60 is kept clean, and dental treatment can be performed in a clean space.

The present invention is not limited to the examination table at the dental clinic, but can be installed at any location.

In addition, in the above embodiment, the HEPA filter 40
In this case, a clean room air filter without a separator was used, but this
This is because the height of the HEPA filter itself can be lower than the height of the separator.
In particular, when using a general room, the height of the ceiling may be a constraint, and it is desirable that the ceiling not protrude as much as possible. However, in rooms with high ceilings, ordinary separators may be installed.

Furthermore, in the above embodiment, the curtain 50 was attached to the entire circumference of the box 1 except for a part of the front side.
It is also possible to hang it so that the front part is also covered. Also, if necessary, the curtain 50 can be attached to the box body 1.
It may be movably attached to the bottom of the.

Furthermore, the lighting equipment 30 is not necessarily required in cases where lighting equipment is specially installed, such as in a dentist's examination table, so it may be installed depending on the use and purpose.

Further, in the above embodiment, the suction port 6 and the chamber 1
0, the suction port 6 of the chamber 10
Although the side is made oblique, if the distance between the suction port 6 and the chamber 10 can be maintained, it is not necessary to make the side oblique.

[Effect of idea]

As described above, according to the present invention, a box body is provided with a suction port on the side surface and an opening is provided on the bottom surface, and is attached to the ceiling, a prefilter is installed inside the suction port of the box body, and a box body is provided with an opening on the bottom surface of the box body. A chamber is installed over the opening of the box body to form a gap with the top surface of the box body, and a chamber is installed inside the chamber to allow air to flow into the box body through the suction port. a blower that sucks air into the chamber through the suction port of the chamber; a HEPA filter that is provided on the lower surface of the chamber and has a semicircular cross section that filters the air sucked into the chamber;
Since it is composed of a curtain hanging from the periphery of the box, it can be easily installed in any room with a ceiling to which the box can be attached. of
Clean air is blown out from the HEPA filter in an approximately 180° range, making the area partitioned by a curtain a clean area. Therefore, just by installing one HEPA filter with a semicircular cross section,
It becomes possible to secure a sufficiently clean area,
It can be made into a compact unit.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of a ceiling-mounted clean unit according to an embodiment of the present invention. FIG. 2 is a front view of FIG. 1. Third
The figure is a bottom view of FIG. 1. FIG. 4 is a side view of FIG. 1. FIG. 5 is a rear view of FIG. 1. FIG. 6 is an explanatory view showing an example of the use of a ceiling-mounted clean unit according to an embodiment of the present invention installed above an examination table in a dentist's office. Explanation of symbols of main parts, 1...Box, 6...
Suction port, 10...chamber, 20...blower,
40...HEPA filter, 50...curtain,
T... Ceiling-mounted clean unit.

Claims (1)

[Claims for Utility Model Registration] (1) A box body 1 having a suction port 6 on the side surface 4 and an opening 7 on the bottom surface 3 and being attached to the ceiling;
A pre-filter 42 is attached to the inside of the suction port 6 of the box body 1, and a suction port 13 is provided on the top surface 2 side of the box body 1, and there is a gap 12 between the prefilter 42 and the top surface 2 of the box body 1.
A chamber 10 is installed over the opening 7 of the box body 1 to form a a blower 20 that sucks air into the chamber 10; and a blower 20 with a semicircular cross section that is installed on the bottom surface of the chamber 10 and filters the air sucked into the chamber 10.
A ceiling-mounted clean unit comprising a HEPA filter 40 and a curtain 50 hanging from the periphery of a box body 1. (2) The ceiling-mounted clean unit according to claim 1, wherein the HEPA filter 40 is a clean room air filter in which no separator is installed, with both sides curved. (3) A HEPA filter 4 is installed on the bottom surface 3 of the box 1.
2. The ceiling-mounted clean unit according to claim 1, wherein the lighting fixture 30 is installed at a location away from zero.