JP2545186Y2 - 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 lighting equipment.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show a first conventional example. That is, in this lighting fixture, a stabilizer 71 is attached to the center of the inner surface of the top of the fixture main body 70, a reflector 72 is provided in front of the stabilizer 71 in the fixture main body 70, and a lamp is provided in front of the reflector 72. The lamp 73 mounted on the socket 74 is provided. 75 is a mounting hole, 76 is a frame, and 77 is a ceiling material.

FIGS. 6 and 7 show a second conventional example. That is, in this lighting fixture, a hole 78 is formed in the center of the top of the fixture main body 70, and a ballast 71 is formed on the inner surface of the side of the top.
, A reflector 72 is provided in front of the stabilizer 71, and a lamp 73 mounted on a lamp socket 74 is provided in front of the reflector 72.

[0004]

However, these luminaires have a drawback that the temperature of each of the ballast 71 and the lamp 73 rises due to mutual interference of heat between the lamp 73 and the ballast 71. Further, a mounting hole 75 is formed in the top part of the instrument body 70 and attached to a suspension bolt or the like on the ceiling. However, problems such as deformation of the instrument body 70 occur.

Accordingly, an object of the present invention is to provide a lighting fixture which can prevent deformation of the fixture main body and prevent mutual interference of heat between the lamp and the ballast.

[0006]

The lighting fixture of the present invention is:
A reflector provided with a lamp socket, and a side wall provided with a gap on both sides of the reflector, and a rear end of the reflector on the back side of the reflector from the end of the side wall on the back side of the reflector. It has an extending portion that extends in parallel with the back surface and has a main body mounting portion, and extends from a tip end of the extending portion to the back surface of the reflection plate and is attached to the reflection plate. And a ballast box having a built-in ballast mounted between the mounting portions on the back surface of the reflector.

[0007]

According to the structure of the present invention, when the lamp is turned on, the lamp rises in temperature and the ballast rises in temperature. However, since the lamp radiates heat from the fixture body and the ballast radiates heat from the ballast box, mutual interference of heat occurs. Therefore, the temperature of the lamp and the ballast can be prevented from rising, and the temperature inside the fixture can be prevented. Further, since the device main body is constituted by a pair of main body portions including a side wall portion, an extension portion and a connecting portion, and the extension portion is provided with a main body mounting portion, the strength of mounting the main body can be improved and the deformation of the device main body can be prevented. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. That is, this lighting fixture has a reflector 1
And a tool body 2 and a stabilizer box 3. The reflector 1 is provided with a lamp socket 4. Lamp 5 is 4
The two glass tubes are arranged in parallel and have electrodes on the lamp socket 4 side of the glass tubes at both ends, the glass tubes at both ends communicate with the inside on the opposite side to the electrodes, and the two inside glass tubes are connected to the electrodes. This is a fluorescent lamp which communicates on the side and communicates in an M-shape as a whole. And a lamp socket 4 and a lamp 5
Are provided in pairs at the center of the reflection plate 1 with a gap 6 therebetween.

The apparatus main body 2 has a side wall 7 disposed on both sides of the reflector 1 with a gap 6 therebetween. A rear surface 8 and a space 9 extending in parallel with the rear surface 8 of the main body, and having an extension portion 11 provided with a main body mounting portion 10 having a hole as an embodiment. The body 1 includes a pair of main bodies 13 having a connecting portion 12 extending toward the back surface 8 and having a distal end attached to the reflector 1 by a thumbscrew 15. The width in the direction perpendicular to the facing direction of the pair of main bodies 13 of the appliance body 2 is shorter than the width of the reflector 1,
Is in a state of protruding outward. The space 9 is located just above the lamp 5. Further, in the side wall portion 7, heat radiating holes 25 composed of a large number of long holes in two rows are formed at desired positions on the back surface 8 of the reflecting plate 1. The front end of the side wall 7 of the instrument body 2 forms a bent portion 20 outward, and a ceiling plate 21 is mounted on the bent portion 20. Reference numeral 22 denotes a frame that is attached to the instrument body 2 and mounts the panel 23 thereon. Reference numeral 31 denotes an end plate that closes an end in the width direction of the instrument body 1, and forms a notch 32 through which the reflecting plate 1 passes.

The ballast box 3 is attached to the back surface 8 of the reflector 1 by screws 16 between the connecting portions 12 of the main body 13 and has a ballast 14 built therein. The ballast 14 is attached to the inner surface of the top 17 of the ballast box 3, and a terminal block 18 is provided at an end of the ballast box 3. The length of the ballast box 3 is equal to the width of the reflector 1, and the ballast box 3 is provided at a position between the lamp sockets 4. Further, a large number of heat radiation holes 19 are formed on the side surface of the ballast 14. As shown in FIG. 3, the center 5a of the lamp 5 in the longitudinal direction and the center 14a of the ballast 14 in the same direction are not opposed but shifted.

According to this embodiment, when the lamp 5 is turned on, the temperature of the lamp 5 rises and the temperature of the ballast 14 rises.
Dissipates heat from the ballast box 3, so that mutual interference of heat can be reduced, and therefore, it is possible to prevent the temperatures of the lamp 5 and the ballast 14 from rising. Therefore, the coldest point of the lamp and the temperature rise of the lamp base can be reduced. In addition, since the appliance main body 2 is constituted by a pair of main body portions 13 including the side wall portion 7, the extension portion 11, and the connection portion 12, and the extension portion 11 is provided with the main body attachment portion 10, the body attachment strength can be improved, and the appliance main body 2 can be improved. Can be prevented from being deformed.

The convective heat of the lamp 5 is radiated from the radiating holes 19 of the side wall 7 of the fixture body 2, and the convective heat of the ballast 14 is radiated from the radiating holes 19 of the ballast box 3. Since no heat radiating hole is formed, the convection of the lamp heat cannot be merged with the convection of the heat from the heat radiating hole 19 of the ballast and is interrupted, so that the temperature rise of the electric parts is reduced. Also,
Since the ballast box 3 is arranged between the pair of lamp sockets 4 and the center 14a of the ballast 14 in the longitudinal direction is shifted from the center 5a of the lamp 5, it is easy to suppress mutual thermal interference. 4 for the instrument body 2
Since it is more protruding, heat can be radiated directly from the reflector 1.

The ballast box 3 may be provided with a heat radiating hole at the end and the top portion 17, and the heat radiating hole of the instrument body 2 is formed not at the side wall 7 but at the end and the extension. May be done. Further, the end plate 31 may be omitted and may be open.

[0014]

In the lighting fixture of the present invention, a ballast box is mounted on the back side of the reflector provided with the lamp socket, and the side walls of the pair of main bodies of the fixture body are arranged on the side of the reflector and connected. Since the lamp is radiated from the fixture body and the ballast radiates from the ballast box because it is mounted on the back of the reflector, the mutual interference of heat can be reduced, thus preventing the temperature of the lamp and ballast from rising. Can be prevented, and a rise in temperature inside the device can be prevented. Further, since the device main body is constituted by a pair of main body portions including a side wall portion, an extension portion and a connecting portion, and the extension portion is provided with a main body mounting portion, the strength of mounting the main body can be improved and the deformation of the device main body can be prevented. This has the effect.

[Brief description of the drawings]

FIG. 1 is a half sectional view of an embodiment of the present invention.

FIG. 2 is a plan view.

FIG. 3 is a side view.

FIG. 4 is a plan view of a first conventional example.

FIG. 5 is a half sectional view thereof.

FIG. 6 is a plan view of a second conventional example.

FIG. 7 is a half sectional view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reflector 2 Instrument main body 3 Ballast box 4 Lamp socket 6 Gap 7 Side wall part 8 Back surface 9 Space 10 Main body mounting part 11 Extension part 12 Connecting part 13 Main part 14 Ballast

Claims (1)

(57) [Scope of request for utility model registration] A reflector provided with a lamp socket; and a side wall provided with a gap on both sides of the reflector, wherein the side wall has an end on the back side of the reflector. An extension portion extending parallel to the back surface with a space between the back surface and a main body mounting portion, and extending from the front end portion of the extension portion toward the rear surface, and the front end portion is provided with the reflection plate. A lighting fixture comprising: a fixture main body including a pair of main bodies having a connecting portion attached to the reflector; and a stabilizer box attached to the back surface of the reflector between the connecting portions and incorporating a stabilizer.