JPH021775Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to clean room lighting equipment for use in vertical laminar flow clean rooms and the like.

[Conventional technology]

Examples of conventional lighting equipment used in clean tunnel type vertical laminar flow clean tunnels include those shown in FIGS. 5 and 6, for example.

In the figure, 1 is the ceiling of the structure, 2 is the floor,
3 and 4 are walls. 5 is an air filter,
This device filters the air supplied from the air duct 1a, removes dust, etc., and blows it vertically downward as clean air. Reference numeral 6 denotes a transparent plate attached to the wall 4, which defines a clean tunnel 7 together with the air filter 5, the wall 3, and the floor 2.

8 and 9 are respective lighting devices, 8a and 9
Reference numeral a denotes an illumination light of this illumination device, which illuminates the inside of the clean tunnel 7 through the transparent plate 6. 8b,
Reference numerals 9b are cases for the lighting devices 8 and 9, in which the lighting lights 8a and 9a are mounted, and the walls 4
mounted on.

[Problem that the invention attempts to solve]

However, in such conventional lighting devices, although a transparent plate is attached to the front of the lighting device so as not to disturb the laminar flow of clean air blown out from the air filter 5, it is difficult to replace the lighting lamps. For maintenance such as cleaning, remove the light-transmitting plate, or if the light-transmitting plate is hinged to the wall 4, rotate it upward into the clean tunnel 7. Either way, the lighting device Because it has to be constructed from the front of the clean tunnel 7, that is, from inside the clean tunnel 7,
There are problems in that it disturbs the thick flow of the clean tunnel and requires a lot of work to carry out the maintenance, and also because the back side (the opposite side of the clean tunnel 7) of the lighting devices 8 and 9 protrudes greatly from the wall 4 to the back side. ,
There was a problem in that dust adhered to this, and in some cases, this dust entered the clean tunnel 7.

This idea was made in view of the problems of the conventional structure, and it solves the above problems by attaching the case of the lighting device to the hanging wall of the structure and forming a part of the hanging wall. It is an object.

[Means for solving problems]

This idea allows the lighting device to form a part of the hanging wall by attaching the upper end of the case of the lighting device to the hanging wall of the structure, and prevents the thickness of the lighting device from becoming larger than the thickness of the hanging wall. , multiple lighting lights were installed vertically in parallel inside the case.

[Effect]

Since a plurality of lighting lights are arranged vertically in parallel inside the case, the case can be formed integrally with the hanging wall.
For this reason, the lighting device has both a function as a hanging wall and a lighting function, and guides clean air downward on the surface of the lighting device on the clean room side, as if the hanging wall were extended downward. Also, since the thickness of the lighting device is not larger than the hanging wall,
Since no dust is accumulated therein, there is no risk of contaminating the clean room.

〔Example〕

This invention will be explained below based on the drawings. Figures 1 and 2 are diagrams showing an embodiment of this invention.
Note that the same parts as in the conventional example are given the same reference numerals, and redundant explanation will be omitted.

Reference numeral 10 denotes a hanging wall, which is hung from the ceiling 1. 11 is a lighting device, the upper end of which is attached to the lower end of the hanging wall 10;
It forms an extension of the hanging wall 10. 12
is a case of the lighting device 11, which is fixed to the hanging wall 10 with bolts 13. Reference numeral 14 denotes an inner frame, which forms the framework of the case 12. 1
Reference numeral 5 denotes a transparent plate forming the surface of the case 12, which is disposed on the clean room 7 side, and whose lower end forms a curved surface with a streamlined cross section, and whose upper end is secured by a screw 16. It is fixed to the inner frame 14. Reference numeral 17 denotes a back plate, the inner surface of which is treated to reflect light, and is detachably attached to the inner frame 14 with screws 18 and 19. 20
are side plates provided on both sides of the case 12.

The case 12 is composed of an inner frame 14, a transparent plate 15, a back plate 17, and a side plate 20. 21, 21
are illumination lights (fluorescent lights in this example) arranged vertically in parallel, and 22 is a socket thereof.

Next, the action will be explained.

The light from the plurality of fluorescent lamps 21 passes through the transparent plate 15 together with the light reflected by the back plate 17 and enters the clean tunnel 7.
Illuminate the inside. Transparent plate 1 forming the surface of case 12
5 is continuous on the same plane as the surface of the hanging wall 10, and its lower end forms a curved surface with a streamlined cross section. Therefore, the laminar flow of clean air blown downward from the air filter 5 is , flow down without being disturbed by the case 12.

When performing maintenance such as replacing or cleaning the fluorescent lamp 21,
By removing the screws 18 and 19, the back plate 17 can be easily removed downward. That is,
Since the lighting device 11 can be maintained on the back side of the case 12, the laminar flow in the clean tunnel 7 is not disturbed.

FIG. 3 shows a second embodiment, and FIG. 4 shows a third embodiment. FIG. 3 shows a plurality of illumination devices 11 arranged in two rows facing each other, increasing the illuminance inside the clean room 7 compared to the first embodiment, and FIG. Illumination devices 11 are arranged in parallel in four directions, and the illuminance inside the clean room 7 is even greater, and the shadows of objects at the working position are extremely thin. Further, in any of the above embodiments, the laminar flow in the clean room 7 directly below the air filter 5 is not disturbed by the lighting device 11.

[Effect of idea]

As explained above, according to this invention, the lighting device is provided so as to form an extended part of the hanging wall, so the lighting device doubles as the hanging wall in this part. This has the effect that the downward extension of the hanging wall can be shortened and clean air can be smoothly guided downward by the illumination device. Further, since the thickness of the lighting device is not larger than the hanging wall, dust will not accumulate there, so there is no risk of contaminating the clean room.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of one embodiment of the present invention;
FIG. 2a is a side view with a partial cross section of this embodiment, FIG. 2b is a front view of the same, FIGS. 3 and 4 are perspective views showing application examples of this embodiment, and FIGS. 6 each is a schematic perspective view of a conventional lighting device. 10... Hanging wall, 11... Lighting device, 12...
Case, 15...Transparent plate, (case surface), 17...
... Back plate, 21 ... Illumination light (fluorescent light).

Claims (1)

[Claims for Utility Model Registration] (1) By attaching the upper end of the case of a lighting device in which a plurality of lighting lights are arranged vertically in the case to the lower surface of a hanging wall of a structure, the lighting device A lighting equipment for a clean room, characterized in that the lighting equipment is configured to form an extension of the hanging wall. (2) The clean room lighting equipment as set forth in claim 1 of the utility model registration claim, wherein the case has a surface that is continuous with the hanging wall surface in the same plane, and a longitudinal cross section of the lower end of the case in the front and back direction has a streamlined shape. . (3) The lighting equipment for a clean room according to claim 1 or 2 of the utility model registration claim, in which the case has a back plate that is removable from the back side of the case.