JPH04368705A - Luminaire - Google Patents

Abstract

PURPOSE:To improve heat discharging effect, and save the trouble of fitting lamps and a reflecting plate after locating a main frame. CONSTITUTION:An opening window 15 is drilled in the center of a reflecting plate 14, and a fitting plate 16 is located in an opening part 2 of a main frame 3 so as to cross this opening window 15. An auxiliary reflecting plate 18 is fitted to the louver side under the opening window 15 of the reflecting plate 14. Heat from lamps 8 is discharged from clearances between the opening window 15 side part of the reflecting plate 14 and the upper end of the auxiliary reflecting plate 18. Heat from ballasts 9 is discharged from a clearance between the main frame 13 and the top surface of the reflecting plate 14. In the case of executing a luminaire, the reflecting plate 14 and the lamps 8 are fitted to the main frame 3 previously, and a hand is inserted from the opening window 15 of the reflecting plate 14 under this condition to fit the main frame 3 to the ceiling surface with fitting bolts 4 through fitting holes 17.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recessed lighting fixture installed in an opening in a ceiling plate.

0002

2. Description of the Related Art FIG. 3 shows the installation state of a conventional lighting fixture, in which a main body 3 with an open bottom is positioned in an opening 2 of a ceiling plate 1, and is suspended by a mounting bolt 4 from the back of the ceiling. There is. As shown in FIG. 4, an opening 5 is formed on the top surface of the main body 3, and by inserting your hand from below, insert the lower end of the mounting bolt 4 into the hole 6 of the main body 3, and then screw the nut 7 from below. Then, the main body 3 is installed.

Further, a ballast 9 for lighting a lamp 8 is provided on the ceiling surface of the main body 3, and a reflector 10 is attached to a screw 11.
It is attached to the bottom surface of the main body 3 at. A louver 12 is provided at the bottom of the main body 3 below the lamp 8, and a frame 13 is attached to the bottom surface of the main body 3.

0004

[Problems to be Solved by the Invention] In such a conventional example, since the upper surface of the reflector 10 is closed, the heat of the lamp 8 is trapped, and some of the heat escapes from the gap between the reflector 10 and the louver 12. There was a problem in that the lamp heat did not escape effectively even though it was only slightly escaping. Note that the arrows in FIG. 3 indicate heat.

[0005] Other problems include the following. In other words, as shown in FIGS. 4 and 5, the main body 3
After installing it on the ceiling surface, as shown in Figure 5(a),
The reflector 10 was attached to the main body 3, then the lamp 8 was attached as shown in (b), and then the louver 12 and frame 13 were attached as shown in (c). Therefore, after attaching the main body 3 to the ceiling surface, the reflector 1
0 and lamp 8 must be installed, and a reflector 10 must be installed.
There was a problem that it took time and effort to attach the lamp 8.

[0006] The present invention has been provided in view of the above-mentioned points, and provides a lighting fixture that has a good heat dissipation effect and also aims to save the labor of attaching a lamp and a reflector after installing the main body. It is something to do.

[0007]

[Means for Solving the Problems] The present invention forms an opening in the upper surface of a main body that has a stabilizer inside, and disposes a reflecting plate with an opening window in the center inside the main body below the opening. A mounting plate is installed across the opening window of the reflector plate, which is attached using a mounting bracket from the back of the ceiling, and an auxiliary reflector plate is installed below the opening window of the reflector plate to reflect the light from the lamp. be.

[0008]

[Function]The heat of the lamp is radiated through the opening window of the reflector plate, and when installing the main unit on the ceiling, you can insert your hand through the opening window of the reflector plate before installing. The main body equipped with a reflector and a lamp can be installed on the ceiling.

[0009]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the explanation of the same parts as in the conventional case will be omitted. As shown in FIGS. 1 and 2, an opening window 15 is formed in the center of the reflecting plate 14, and a mounting plate is attached to the opening 2 of the main body 3 above the reflecting plate 14 so as to cross this opening window 15. 16 have been installed. A potbell-shaped mounting hole 17 is located in the center of this mounting plate 16.
is drilled through the lower part of the mounting bolt 4 so that the main body 3 can be installed on the ceiling surface with a single touch.

Further, an auxiliary reflecting plate 18 is attached below the opening window 15 of the reflecting plate 14 on the louver 12 side, and the part of the reflecting plate 14 on the opening window 15 side and the upper end of the auxiliary reflecting plate 18 A gap is formed between the lamp 8 and the lamp 8, and the heat from the lamp 8 is radiated through this gap. Further, the heat from the ballast 9 is radiated through a gap between the main body 3 and the upper surface of the reflector plate 14.

[0011] When constructing a lighting fixture, the reflector 14 and lamp 8 are attached to the main body 3 in advance,
In this state, insert your hand through the opening window 15 of the reflector 14,
As shown in FIG. 2, the main body 3 is attached to the ceiling surface using a mounting bolt 4 through a mounting hole 17.

0012

Effects of the Invention As described above, the present invention has an opening formed on the upper surface of a main body that is provided with a stabilizer inside, and a reflecting plate with an opening window provided in the center is disposed in the main body below this opening. A mounting plate is installed across the opening window of the reflector plate, which is attached using a mounting bracket from the back of the ceiling, and an auxiliary reflector plate is installed below the opening window of the reflector plate to reflect the light from the lamp. Therefore, the heat from the lamp is radiated through the opening window of the reflector.
The heat from the lamp and the ballast are dissipated through separate routes, resulting in a great heat dissipation effect.In addition, when installing the main unit on the ceiling, it is easy to install by inserting your hand through the opening of the reflector. The main unit with a reflector and lamp attached to it can be installed on the ceiling, so after the main unit is installed, the reflector and
This eliminates the need for the labor and effort of installing the lamp, which has the effect of saving construction work.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing how a lighting fixture according to an embodiment of the present invention is installed.

FIG. 2 is a perspective view showing how the lighting fixture is installed.

FIG. 3 is a sectional view showing a state in which a conventional lighting fixture is installed.

FIG. 4 is a diagram showing an installation state.

FIG. 5 is a diagram showing an installation state.

[Explanation of symbols]

1 Ceiling board 2 Opening 3 Main body 5 Opening 8 Lamp 9 Stabilizer 14 Reflector 15 Opening window 16 Mounting plate 18 Auxiliary reflector

Claims (1)

[Claims] Claim 1: In a recessed lighting fixture installed in an opening in a ceiling board, an opening is formed in the upper surface of the main body that is provided with a ballast inside, and a central lamp is provided in the main body below the opening. A reflector plate with an opening window is installed on the top of the reflector plate, and a mounting plate is installed across the opening window of the reflector plate, which is attached to the back of the ceiling using a mounting bracket, and the light from the lamp is directed below the opening window of the reflector plate. A lighting device characterized by being provided with an auxiliary reflector for reflection.