JP2619169B2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device installed in, for example, a clean room.

[0002]

2. Description of the Related Art Hitherto, a buried type luminaire to be installed on a ceiling surface of a clean room is disclosed, for example, in Japanese Utility Model Laid-Open No. 63-12506.
As described in the publication, a seal member is attached to a flange portion provided on an opening peripheral portion of a box-shaped appliance main body having a lower surface opened, and the appliance main body is inserted into an embedding opening formed in a ceiling surface. When tightening with a nut on a suspension bolt protruding from the ceiling structure above the ceiling surface, the flange part closely adheres to the ceiling surface via a seal member, and the space between the ceiling surface and the instrument body is sealed It has become.

[0003] Further, the appliance body itself has holes for attaching the appliance, for drawing in the power supply line, for attaching the lighting unit, and the like.
It is provided at a plurality of locations and is selectively used in order to correspond to a power line lead-in position, a lighting unit type, and the like. Communicate through the hole.

[0004] For this reason, the opening of the instrument body is closed with a translucent panel to shield the inside of the instrument body from the inside of the clean room below the ceiling plate. The light-transmitting panel is attached to the panel frame in a state of being in close contact with a sealing member, and the panel frame is provided so as to be able to move up and down on the instrument body by supporting means using a V spring or the like. It has a structure in which the space between the panel frame and the instrument body is sealed tightly to the flange portion.

[0005]

However, in a structure in which the opening of the main body of the fixture is closed with a translucent panel as in a conventional lighting fixture, a translucent panel, a panel frame, a support means, a seal member, and the like are required. In addition, the structure becomes complicated, and when performing maintenance such as lamp replacement and cleaning, it takes time and effort to open and close the light-transmitting panel (to move up and down integrally with the panel frame).

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has a simple structure, which can secure the hermeticity between the inside and the outside of a lighting device main body, and can easily perform maintenance such as lamp replacement and cleaning. The purpose is to provide.

[0007]

According to the present invention, a plurality of holes are provided in a box-shaped appliance main body having an open lower surface and are used at least for mounting the appliance and for drawing in a power supply line and selectively used. And, a flange portion which is hermetically joined via a seal member is provided on a mounting surface for attaching the appliance body to the opening peripheral portion, and one of the outer surface or the inner surface of the appliance body covers the plurality of holes. It is a sheet-like metal foil that is tightly sealed.

[0008]

According to the present invention, the metal foil is punched and opened for holes used for mounting the appliance body and for drawing in the power supply line, and the other unused holes are kept sealed with the metal foil.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 5, reference numeral 1 denotes an appliance main body, a rectangular substrate portion 2, a pair of side plate portions 3 which are formed to be bent diagonally downward from both sides of the substrate portion 2, and a substrate portion 2 And a pair of end plate portions 4 which are fixed to both end surfaces of the pair of side plate portions 3 and close the end surfaces thereof, are formed in a box shape, and substantially L-shaped outwardly at the lower ends of the side plate portions 3 and the end plate portions 4 respectively. A flange portion 5 bent in a shape is formed.

A plurality of holes 6 are formed in the instrument body 1. First, the holes 6a are provided for mounting an instrument, and are arranged in a pair on the center line A of the substrate 2 near each end of the substrate 2 so as to be spaced apart from each other. Is formed in a knockout structure.

The hole 6b is for drawing in a power supply line, and is disposed on the center line A near each end of the substrate portion 2 and at the center of the substrate portion 2 on the center line A and the center line A. It is arranged at a position deviated from the center and is formed in a circular knockout structure.

A plurality of holes 6c are provided along the center line A in the central region of the substrate portion 2 for mounting the lighting unit, and are formed in a hole structure having a through opening.

The hole 6d is provided for mounting the terminal block, is disposed at a position deviated from the center line A in the central area of the substrate 2, and is formed in a hole structure having a through opening.

The hole 6e is for feeding wiring when connecting and connecting the instrument body 1 in the longitudinal direction, and is provided at the center of the end plate portion 4,
It is formed in a circular knockout structure.

The holes 6f are used for connecting the instrument when the instrument body 1 is connected and connected in the longitudinal direction. The holes 6f are provided on both sides of the hole 6e of the end plate portion 4 and are formed in a hole structure that opens through. .

Then, a lighting unit 7 and a terminal block 8 are arranged inside the appliance main body 1, and the lighting unit 7 is screwed into a hole 6c corresponding to the type of the lighting unit 7,
The terminal block 8 is screwed to the hole 6d.

Next, in order to make the appliance body 1 a sealed type,
As shown in FIG.
The seal member 11 is made of, for example, a soft rubber, and is formed in a dimension shape protruding above the flange portion 5 in a state before being in close contact with a mounting surface described later.

A metal foil, for example, an aluminum foil 12 is adhered to the outer surface of the substrate portion 2 and the outer surfaces of both end plate portions 4.
The aluminum foil 12 covers and seals all the holes 6 provided in the substrate portion 2 and both end plate portions 4. This aluminum foil is formed in a sheet shape with a thickness of about 0.05 mm, a length extending over both end plate portions 4 and a lateral width covering all the hole portions 6, and the outer surfaces of the substrate portion 2 and both end plate portions 4. The adhesive is applied to the aluminum foil or the adhesive is applied to the aluminum foil. The attachment of the aluminum foil 12 is performed after the lighting unit 7 and the terminal block 8 are screwed to the appliance body 1.

Next, a description will be given of how to mount the lighting fixture on a mounting surface such as a clean room.

As shown in FIG. 3, a rectangular opening 22 through which the instrument body 1 can be embedded is formed in a ceiling plate 21 as a mounting surface of a clean room or the like. A pair of suspension bolts from the ceiling structure above
23, and a power supply line 24 is led from the ceiling structure as shown in FIG.

Then, as shown in FIG. 2, the position of the tool mounting hole 6a corresponding to the position of the pair of suspension bolts 23 and the hole for power supply line drawing corresponding to the guiding position of the power supply line 24.
At the position of 6b, the aluminum foil 12 is punched out at the tip of the driver D and the knockout is punched out, and the holes 6a, 6b
Are respectively opened.

Then, the instrument body 1 is inserted into the opening 22 from below, and the tip of the hanging bolt 23 is inserted through the hole 6a.
Through the inside of the bolt, pass the washer 25 and the spring washer 26 at the tip, and screw the nut 27 into the thread 23a at the tip of the suspension bolt 23.
As shown in FIG. 3, the sealing member 11 is pressed against and closely adheres to the ceiling plate 21, so that the fixture body 1 is fixed to the ceiling and the fixture body 1 and the ceiling plate 21 are fixed to each other. The space is sealed.

The portion of the hole 6a through which the suspension bolt 23 has passed is coated with a sealant 28 and sealed.

When inserting the appliance main body 1 into the opening 22, the power supply line 24 is drawn into the interior of the appliance main body 1 from the hole 6b to be connected to the terminal block 8, and the power supply line 24 is inserted into the hole 6b through which the power supply line 24 passes.
The power supply ground 28 is attached to the hole 6b to seal the hole 6b.

Therefore, the unused hole 6 of the instrument body 1 is sealed with the aluminum foil 12, and the space between the instrument body 1 and the ceiling plate 21 is sealed with the sealing member 11. That is, the tightness between the lower space and the upper space of the ceiling plate 21 is ensured.

At the inside of the instrument body 1, mounting bases 31 are fixed at both ends in advance by welding, and a pair of lamp sockets 33 for connecting a pair of straight tube lamps 32 to the mounting base 31.
Is mounted, and a reflector 34 having a substantially V-shaped cross section is disposed between the pair of lamps 32 so as to cover the lighting unit 7 and the like.

Further, since the lower surface of the instrument body 1 is opened, maintenance such as replacement and cleaning of the lamp 32 can be easily performed.

Further, a metal foil such as an aluminum foil is strong against thermal effects, hardly deteriorated by heat generation of the lighting unit 7, and has durability.

Further, in addition to the appliance body dedicated to the closed type, a metal foil can be adhered to the appliance body for the general type to be used as a closed type, so that the appliance body can be shared.

In the above-described embodiment, the metal foil is used for the appliance body 1.
However, before attaching the lighting unit 7 or the like, it may be attached to the inner surface of the appliance body 1, and in this case, the heat radiation effect is improved.

[0032]

According to the present invention, a sheet-like metal foil that covers and seals a plurality of holes provided in the instrument body is attached to one of the outer surface and the inner surface of the instrument body. Holes used for mounting the instrument body or for drawing in power lines can be easily punched and opened without the need for special tools, and metal foil is used for other unused holes. In order to maintain the sealed state, it is possible to secure the tightness between the inside and the outside of the instrument body with a simple structure, and to easily perform maintenance such as replacement of the lamp disposed inside the instrument body and cleaning of the inside of the instrument body. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fixture main body showing an embodiment of a lighting fixture of the present invention.

FIG. 2 is a perspective view showing a part of the lighting fixture of the present invention.

FIG. 3 is a cross-sectional view of a lighting fixture according to the present invention in an installed state.

FIG. 4 is a perspective view of a part of the lighting fixture of the present invention during construction.

FIG. 5 is a perspective view of a fixture main body of the lighting fixture of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Instrument main body 5 Flange part 6 Hole part 11 Seal member 12 Metal foil

Claims (1)

(57) [Claims] 1. A box-shaped appliance main body having an open lower surface, provided with a plurality of holes which are used and selectively used at least for attaching an appliance and for drawing in a power supply line, and at the peripheral edge of the opening. A flange portion that is hermetically joined via a seal member is provided on a mounting surface to which the main body is attached, and on one of an outer surface and an inner surface of the instrument main body,
A lighting device characterized in that a sheet-shaped metal foil that covers and seals the plurality of holes is attached.