JP2004362844A - Lighting equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide lighting equipment for making a volume of a space surrounded by a main body and a reflecting plate as large as possible, and to well carry out the positioning of the reflecting plate on the main body. <P>SOLUTION: The fixture is provided with a main body 1, a lighting circuit board 2 provided below the main body 1, a reflecting plate 3 provided below the lighting circuit board 2 and fixed to the main body 1, and a circular fluorescent lamp 5 supported by lamp for supporting tools (lamp supporting screws) 4 fixed to the main body 1. Mounting base parts of the lamp supporting tools 4 are located at notched parts 6 formed at an outer periphery edge of the reflecting plate 3. Further, the vicinity of the mounting base parts of the lamp supporting tools 4 in the main body 1 is made protruded in steps so that the notched parts 6 of the reflecting plate 3 are insertion-coupled with them (stepped protrusions 7). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lighting device including a lighting circuit board for lighting a fluorescent lamp.
[0002]
[Prior art]
In this type of luminaire, a main body, a lighting circuit board provided on a lower surface of the main body, a reflector provided on a lower surface of the lighting circuit board and fixed to the main body, and a lamp support fixed to the main body ( And a fluorescent lamp supported by a lamp support spring).
[0003]
[Problems to be solved by the invention]
However, since the reflector completely avoids the lamp support, the outer diameter of the reflector has been reduced, and the volume of the space surrounded by the main body and the reflector has also been reduced. Particularly in recent years, thin lighting equipment has become popular, and in such lighting equipment, the main body and the reflector have been brought as close as possible. For this reason, the volume of the space surrounded by the main body and the reflector is further reduced, and the temperature of the circuit element mounted on the lighting circuit board is increased, which may adversely affect the life of the circuit element. The present invention has been made in view of the problems to be solved, and an object of the present invention is to provide a lighting device that can increase the volume of a space surrounded by a main body and a reflector even if it is small. Another object is to improve the positioning of the reflector with respect to the main body.
[0004]
[Means for Solving the Problems]
In summary of the present invention, a main body, a lighting circuit board provided on a lower surface of the main body, a reflector provided on a lower surface of the lighting circuit board and fixed to the main body, and a lamp support fixed to the main body are provided. And a mounting base of the lamp support is a lighting device located in a notch formed in an outer peripheral edge of the reflector. In addition, it is preferable that the vicinity of the mounting base of the lamp support in the main body is projected stepwise downward so that the notch of the reflector is fitted.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described. However, it is an exemplary embodiment adopted based on the present invention, and the present invention should not be interpreted in a limited manner based on matters specific to the embodiment. Instead, the technical scope of the present invention should be determined on the basis of the matters stated in the claims and matters substantially equivalent to the matters.
[0006]
The illustrated embodiment includes a main body 1, a lighting circuit board 2 provided on a lower surface of the main body 1, a reflecting plate 3 provided on a lower surface of the lighting circuit board 2 and fixed to the main body 1, An annular fluorescent lamp 5 supported by a fixed lamp support (lamp support spring) 4, and a mounting base of the lamp support 4 is located in a notch 6 formed on an outer peripheral edge of the reflector 3. It is a lighting fixture. Further, the vicinity of the mounting base of the lamp support 4 in the main body 1 is stepped downward so as to be fitted with the notch 6 of the reflection plate 3 (step protrusion 7). In addition to the fluorescent lamp 5, there is a fluorescent lamp 8 having a smaller outer diameter, and the fluorescent lamp 8 is supported by a lamp support 9 fixed to the reflector 3.
[0007]
More specifically, a well-known ceiling mounting mechanism 10 is fixed to the center of the main body 1, and a glove mounting tool 11, a globe guide 12, a fluorescent lamp socket 13 and the like are mounted near the outer periphery of the main body 1. At the center of the insulating plate 14 fixed to the lower surface of the main body 1, an insulating wall 15 for accommodating the ceiling mounting mechanism 10 is formed so as to protrude downward. The insulating plate 14 is screwed to the main body 1 by screwing a screw 17 for fixing the bead ball socket 16 to the lower surface of the insulating plate 14 through the insulating plate 14, or other appropriate portions are fixed to the main body 1 by screws (not shown). It is fixed to the main body 1 by any appropriate means. The lighting circuit board 2 is mounted and fixed to the insulating plate 14 by a locking claw (substantially not shown) formed on an outer peripheral edge of the insulating plate 14 or the like.
[0008]
The remote control receiver 18 is fitted to a proper position on the lower surface of the lighting circuit board 2, and the lower surface thereof is exposed in the window 19 of the reflector 3. A window hole 20 for operating the ceiling mounting mechanism 10 is formed in the center of the reflector 3. The reflector 3 is fixed to the main body 1 with screws 21, and the lamp supports 4 and 9 are also fixed to the main body 1 and the reflector 3 with screws. The fluorescent lamps 5 and 8 are mounted on the fluorescent lamp socket 13 and the lamp supports 4 and 9, respectively, and the bead ball 22 is mounted on the bead ball socket 16 through the hole 23 of the reflector 3.
[0009]
According to this embodiment, the mounting base of the lamp support 4 is located in the notch 6 formed on the outer peripheral edge of the reflector 3. That is, since the outer diameter of the reflector 3 can be ensured as much as possible outside the vicinity of the location where the lamp support 4 is present, the volume of the space surrounded by the reflector 3 and the main body 1 can be increased. The temperature rise of circuit elements (for example, electrolytic capacitors, semiconductor elements, etc., which are vulnerable to heat) mounted on the device can be reduced, which has a positive effect on the life of those elements. Particularly in recent years, thin luminaires have become popular, but the present invention can be used beneficially in producing a thin luminaire in which the main body 1 and the reflector 3 are as close as possible. Further, since the vicinity of the mounting base of the lamp support 4 in the main body 1 is stepped downward so as to be fitted with the notch 6 of the reflector 3 (stepped protrusion 7), the reflector 3 is attached to the main body 1. Since the reflecting plate 3 can be favorably positioned on the main body 1 prior to assembling and fixing, the assembly productivity can be improved.
[Brief description of the drawings]
1 is an assembled perspective view of a main part; FIG. 2 is a sectional view of FIG. 3; FIG.
DESCRIPTION OF SYMBOLS 1 Main body 2 Lighting circuit board 3 Reflector 4 Lamp support 5 Fluorescent lamp 6 Notch 7 Step protrusion

Claims (2)

A main body, a lighting circuit board provided on the lower surface of the main body, a reflector provided on the lower surface of the lighting circuit board and fixed to the main body, and a fluorescent lamp supported by a lamp support fixed to the main body. A lighting fixture provided with a mounting base of the lamp support positioned in a notch formed on an outer peripheral edge of the reflector; 2. The lighting apparatus according to claim 1, wherein the vicinity of the mounting base of the lamp support in the main body is projected stepwise downward so that the notch of the reflector is fitted.

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