JPH03167704A - Illuminating apparatus - Google Patents

Abstract

PURPOSE:To enhance the appearance during lighting and suppress thermal affection of a fluorescent lamp upon a lighting device by furnishing a reflex plate for reflecting the beam of light emitted from a fluorescent lamp and led toward the apparatus body toward the side of a light control body, between an apparatus body and locating the lighting device in the center of the space surrounded by the florescent lamp. CONSTITUTION:A reflex plate 36 is furnished between an apparatus body 23 and a fluorescent lamp 45, and thereby the beam of light emitted from the fluorescent lamp 45 and led toward the apparatus body 23 is reflected toward the side of a light control body. This reflex plate 36 is equipped with a supporting table 48 overhanging right over the space 49 which is surrounded by the fluorescent lamp 45, and a lighting device 50 is mounted at the foremost end face of this supporting table 48, wherein the device 50 is located in the center of the space 49 surrounded by the fluorescent lamp 45. This process precludes local approach of the lighting device 50 to the fluorescent lamp 45 and enhances the appearance during lighting, and also thermal affection of the fluorescent lamp 45 upon the lighting device 50 can be suppressed without any extremely close approach of the lighting device 50 to the fluorescent lamp 45.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lighting fixture that uses, for example, an annular fluorescent lamp and is directly attached to a ceiling or wall in a room.

[Prior Art] This type of direct-mounted lighting fixture conventionally has a fixture main body l fixed to a ceiling surface and a fixture main body l as shown in FIG.
It is equipped with a translucent shade 2 that covers it from below. The appliance main body 1 is constituted by a plate-shaped chassis 3, and an introduction hole 5 is opened in the center of the chassis 3 to introduce a power cord 4 from the ceiling surface.

A plurality of lamp holders 7 for holding annular fluorescent lamps B and a lighting device 8 made up of various circuit components are attached to the lower surface of the chassis 3. The fluorescent lamp 6 is provided concentrically with respect to the introduction hole 5, and the lighting device 8 is disposed in a portion of the fluorescent lamp B surrounded by the bulb 9.

Wiring codes 10a and lOb are derived from this lighting device 8. One wiring cord 10a is provided with a terminal block l1, and this terminal block 11 is connected to the power cord 4. Further, the other wiring cord 10b is provided with a lamp socket 12, and this lamp socket l
2 is connected to the base 7a of the fluorescent lamp 7.

In addition, shade mounting fittings l3 are provided at two opposing locations on the chassis 3, and the chassis 3 is fastened to the ceiling surface at two locations on the top surface using wood screws 14.

A substantially V-shaped support spring 16 is provided on the shade 2 via a bracket l5. The support spring 16 has a ring-shaped hook portion l7 on its bent portion, and by hooking this hook portion 17 on the shade attachment fitting 13, the shade 2 and the instrument body l are connected. There is.

[Problems to be Solved by the Invention] However, in this conventional lighting device, an introduction hole 5 through which a power cord 4 is passed is opened in the center of a chassis 3 in which a fluorescent lamp 6 and a lighting device 8 are supported. Therefore, lighting device 8
When installing the lighting device 8 on the chassis 3, it was necessary to provide the lighting device 8 at a position avoiding the introduction hole 5.

Then, since the fluorescent lamp 6 supported by the chassis 3 together with the lighting device 8 is provided concentrically with respect to the introduction hole 5, the area where the lighting device 8 is surrounded by the fluorescent lamp 6 is large. Due to the eccentricity, the lighting device 8 and the fluorescent lamp 6 were locally close to each other.

Therefore, while the lamp is lit, the shadow of the lighting device 8 is reflected by the shade 2.
There is a problem that it tends to float through the light and the appearance when lit is poor.

At the same time, the heat from the fluorescent lamp 6 concentrates on a part of the lighting device 8 and is easily transmitted, so the thermal influence on the lighting device 8 becomes extremely large. If this happens, there is a risk that the functionality of this electronic component may be impaired.

The present invention was made based on these circumstances, and
When the lamp is on, the shadow of the lighting device does not appear through the light control body, giving a good appearance while the lamp is on.
An object of the present invention is to provide a lighting fixture that can minimize the thermal influence of a fluorescent lamp on a lighting device.

[Means for Solving the Problems] Therefore, in the present invention, there is provided a device main body that is directly attached to the device mounting surface, a translucent light control body supported by this device body, and an inner side of this light control body. A lighting device comprising a fluorescent lamp disposed in the lamp and various electronic components for lighting the fluorescent lamp, and a lamp located between the apparatus main body and the fluorescent lamp, with a light source extending from the fluorescent lamp toward the apparatus main body. A reflector is provided to reflect light toward the light control body, and a support part is provided on the reflector that projects directly above the space surrounded by the fluorescent lamp, and the lighting device is attached to the tip of the support part. The device is characterized in that the lighting device is placed in the center of the space surrounded by the fluorescent lamps.

[Function] According to this configuration, the lighting device and the fluorescent lamp can be prevented from locally approaching each other without being restricted by the installation position of the lighting device or the structure of the appliance main body. Therefore, even when the lamp is lit, the shadow of the lighting device is less likely to appear through the light control body, and the appearance while the lamp is lit is improved.

At the same time, since the lighting device and the fluorescent lamp are not extremely close to each other, the thermal influence of the fluorescent lamp on the lighting device can be suppressed to a small extent, and overheating of electronic components that are sensitive to heat can be prevented.

[Embodiment 1] An embodiment of the present invention will be described below based on FIGS. 1 to 5.

FIG. 5 shows a direct-mounted lighting fixture 21, which includes a fixture body 23 that is fixed to a ceiling surface 22 as a fixture mounting surface, a light control body that covers this fixture body 23 from below, For example, it is equipped with a shade 24.

As shown in FIG. 3, the instrument main body 23 has a thin rectangular box shape with an open bottom surface, and a disk-shaped support portion 25 extending downward is provided at the center of the top surface. A through hole 28 connected to the ceiling surface 22 is provided in the center of the support portion 25.
is taking shape. A mounting fitting 27 is provided between the support portion 25 and the ceiling surface 22. Mounting bracket 2
7 is fixed to the ceiling surface 22 centering around a hook ceiling body 28 provided on the ceiling surface 22, and tongue pieces 29 extending downward are provided at two opposing locations on the outer circumference of the mounting bracket 27. It is provided. A set screw 30 is screwed into each tongue piece 29 from below, and a large diameter head 30a is located at the lower end of this set screw 30.

The support portion 25 of the instrument body 23 is provided with a plurality of mounting holes 3l located around the through hole 26 and into which the set screws 30 are inserted. Mounting hole 3l is through hole 26
An arcuate portion 31a that draws an arc around the arcuate portion 3;
The large diameter portion 3lb is formed to be large enough to allow the head 30a of the set screw 30 to be inserted therethrough.

Therefore, after aligning the large diameter portion 3lb of the mounting hole 31 with the head Boa of the set screw 30, when the instrument body 23 is pushed up and rotated, the set screw 30 will enter the arcuate portion 31a of the mounting hole 3l. It has become.

When the set screw 30 is screwed in in this state, the head Ha of the set screw 30 is caught on the opening periphery of the arcuate portion 31a, and the instrument body 23 is fixed to the ceiling surface 22 via the fitting 27.

Furthermore, a pair of shade fittings 32 are provided on the upper surface of the instrument body 23. The shade attachment fittings 32 are located on both sides of the supporting portion 25, and have hook portions 33 at their tips.

On the other hand, the shade 24 is made of transparent synthetic resin or glass, and has a rectangular opening 35 that matches the shape of the instrument body 23 formed on its upper surface.

A reflecting plate 36 is detachably attached to this opening 35.

As shown in FIGS. 1 and 2, the reflecting plate 36 straddles between the opposing side edges 35a of the opening 35, and both ends of the reflecting plate 3B are provided with side edges 35a. A locking portion 37 is provided that is removably locked. As shown in FIG. 4, this locking part 37 includes a bent part 38 formed by bending both ends of the reflecting plate 36 upward, and a folded part 38 formed by folding the upper end of this bent part 38 downward so as to be elastically deformable. A side edge 35a of the opening 35 is inserted between the bent portion 38 and the folded portion 39.

In the intermediate part between the folded part 38 and the folded part 39, bulges 38a and 39a protrude toward each other.
are provided, and these bulges 38a. The side edge 35a of the opening 35 is sandwiched between the openings 39a.

Note that such a locking portion 37 is located at the side edge portion 35 of the shade 24.
The width H. is formed to be much narrower than the width H2 of the reflecting plate 36, and a recess 40 for positioning the locking portion 37 is provided in the side edge portion 35a.

Further, the distal end of the folded portion 39 is wound in a curled shape, and the existence of this curled portion 4l enhances the ease of attachment and detachment of the locking portion 37 to and from the side edge portion 35a.

An annular fluorescent lamp 45 is supported on the lower surface of the reflector 36 on the shade 24 side. The bulb 4B of this fluorescent lamp 45 is removably supported by a plurality of lamp holders 47 attached to the lower surface of the reflector 36, and this fluorescent lamp 45 is mounted parallel to the ceiling surface 22 and the lower surface 24a of the shade 24. It is located.

Therefore, the light directed from the fluorescent lamp 45 toward the instrument main body 23 is reflected toward the shade 24 by the reflecting plate 36, as shown by the arrow in FIG.

At the center of the opposite plate 36, there is a support base portion 4 extending downward.
8 is provided. The support part 48 is constructed by bending the center part of the reflection plate 36 downward, and is located directly below the hook ceiling body 28. The lower surface 48a of this support part 48 is provided directly above and close to the space 49 surrounded by the bulb 46 of the fluorescent lamp 45, and a ballast as a lighting device is provided in the center of the lower surface 48a. 50 is attached. The ballast 50 includes a printed wiring board (both not shown) on which various electronic components are mounted, and the printed wiring board and the electronic components are housed in a rectangular cylindrical case 51. As shown in FIGS. 1 and 2, this ballast 50 is connected to a space 4 surrounded by the bulb 46 of the fluorescent lamp 45.
9, and is located at the same height as this fluorescent lamp 45.

Wiring cords 52 and 53 are led out from both ends of the ballast 50, respectively. One wiring cord 52 is led between the reflective temporary 36 and the appliance main body 23, and this wiring cord 5
A hooking sealing cap 54 is provided at the tip of 2. The hook sealing cap 54 is removably connected to the hook sealing body 28 exposed through the through hole 2B of the instrument main body 23.

One of the wiring cords 52 on the power supply side is a so-called curl cord, which is extendable and retractable. It is guided by 28. In this case, since the support base part 48 projects downward, the volume of the space 55 becomes larger by the amount of the projecting part, so that the above-mentioned curl coat can be arranged with ease.

A lamp socket 56 is connected to the tip of the other wiring cord 53, and this lamp socket 56 is detachably connected to the base 45a of the fluorescent lamp 45.

Therefore, the fluorescent lamp 45 and the ballast 50 are integrated into the shade 24 via the reflector plate 36.
Together with this shade 24, one light source unit 57 is configured.

Approximately V-shaped support springs 61 are supported via brackets 60 at two opposing locations of the opening 35 of the shade 24 . The support spring 6l has a ring-shaped hook portion 62 at its bent portion. Then, when the hook part 62 of the support spring 61 is hooked on the hook part 33 of the shade support fitting 32 and the shade 24 is pushed up, the support spring 8l
expands elastically, and the shade 24 is pulled up by the biasing force of the support spring 6l, and the opening 35 of the shade 24 enters inside the instrument body 23.

According to such a configuration, a reflecting plate 36 is attached to the opening 35 of the shade 24, an annular fluorescent lamp 45 is arranged on the lower surface of the reflecting plate 3B, and a bulb of the fluorescent lamp 45 is attached to the reflecting plate 36. A support base portion 48 is provided adjacent to the space portion 49 surrounded by the support base portion 48 .
Since the stabilizer 50 is provided on the lower surface 48a of a, the installation position of the stabilizer 50 is not restricted by the structure of the instrument main body 23 side or the position of the hook ceiling body 28, and the stabilizer 50 can be installed on the lower surface 48a. A space 49 surrounded by the light lamp 45
can be easily placed in the center of the

Therefore, it is possible to prevent the ballast 50 and the fluorescent lamp 45 from coming close to each other locally, and the shadow of the ballast 50 is less likely to appear through the shade 24 even when the lamp is on.

At the same time, since the ballast 50 and the fluorescent lamp 45 are not extremely close to each other, it becomes difficult for the heat of the fluorescent lamp 45 to be directly transmitted to the ballast 50.

Therefore, it is possible to suppress the thermal influence on heat-sensitive electronic components and prevent excessive IE, thereby improving the reliability of lighting.

Note that the present invention is not limited to the above embodiments,
For example, instead of a ring-shaped fluorescent lamp, a plurality of straight tube-shaped fluorescent lamps may be arranged in parallel, and the lighting device may be arranged between these fluorescent lamps.

[Effects of the Invention] According to the present invention described in detail above, local proximity between the lighting device and the fluorescent lamp can be prevented +l. Therefore, even when the lamp is on, the shadow of the lighting device is difficult to see through the light control body, and the appearance while the lamp is on is improved accordingly.

At the same time, since the heat of the fluorescent lamp is difficult to be directly transmitted to the lighting device, the thermal effect on heat-sensitive electronic components can be suppressed to a minimum, preventing them from overheating, improving lighting reliability, etc. There are advantages.

[Brief Description of the Drawings] Figures 1 to 5 show one embodiment of the present invention. Figure 1 is a cross-sectional view of the lighting equipment, and Figure 2 is a cross-section taken along line 1-1 in Figure 1. Fig. 3 is an exploded perspective view of the lighting equipment, Fig. 4 is -
FIG. 5 is an exploded perspective view of the connecting portion of the dome and the reflector, FIG. 5 is a perspective view of the entire lighting device, and FIG. 6 is an exploded perspective view of a conventional lighting device. 2l... Lighting fixture, 22... Fixture mounting surface (ceiling surface), 23... Fixture body, 24... Light control body (shade), 45... Fluorescent lamp, 46... Bulb , 48
...Support part, 49...Space part, 50...Lighting device (ballast).

Claims (1)

[Claims] A device body that is directly attached to the device mounting surface, a light-transmitting light control body supported by the device body, a fluorescent lamp disposed inside the light control body, and a fluorescent lamp disposed inside the light control body. a lighting device consisting of various electronic components for lighting a light lamp, and a reflector for reflecting light directed from the fluorescent lamp toward the light control body between the device body and the fluorescent lamp. A plate is provided, and a supporting part is provided on the reflecting plate that projects directly above the space surrounded by the fluorescent lamp, and the lighting device is attached to the tip surface of the supporting part. A lighting fixture characterized by being placed in the center of a space surrounded by fluorescent lamps.