JP2569237Y2 - 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 A conventional louver is shown in FIGS. That is, the louver 50 of FIGS. 6 and 7 is entirely formed of metal or resin, has a substantially V-shaped cross section, a constant height, and has a rectangular lattice shape. The louver 51 in FIGS. 8 and 9 is rectangular in cross section, that is, flat, but has a concentric lattice shape.

[0003]

However, when this louver is attached to the opening of the fixture body and the lamp is arranged inside the fixture body and above the louver in parallel with the louver, the heat dissipation is poor, so that the lamp is sealed. There has been a drawback that the temperature rise of the stop portion and the lamp socket becomes large, and it is difficult to design products.

[0004] Accordingly, an object of the present invention is to provide a lighting fixture capable of reducing a rise in the temperature of a sealed portion of a lamp and a lamp socket.

[0005]

The lighting fixture of the present invention is:
A lamp body having an opening on the lower surface, a lamp socket disposed on a side wall inside the lamp body, and having a lamp mounting portion attached to a center direction parallel to an opening surface of the opening, and a lamp socket; And a louver attached to the appliance body so as to close the opening, and the louver has an outer peripheral portion made of metal, is tall, and has a penetrating portion penetrating the lamp socket. An inner lattice with respect to the outer peripheral portion is made of resin, is short and has a substantially V-shaped cross section, and is located closer to the center of the opening surface of the opening than the sealing portion of the lamp. is there.

[0006]

According to the structure of the present invention, the convection is generated by the light heat of the lamp when the lamp is turned on, and the outside air rises from the lower side to the upper side of the louver. Since the lamp is not illuminated and is made of resin and has poor thermal conductivity, the temperature rise on its side is small, so that the temperature of the air rising by touching this side does not rise. In addition, since the inner grid has a substantially V-shaped cross section and is located closer to the center than the sealing portion, the air flows toward the sealing portion and the lamp socket of the lamp to cool them.
In addition, the outer periphery of the louver is made of metal and has good heat dissipation, so it has an excellent heat dissipation effect of the lamp sealing part and the lamp socket.Moreover, the heat of the outer periphery is also reduced by the air current flowing between the outer periphery and the inner grid. Dissipates heat effectively. As a result, the sealed portion of the lamp and the lamp socket can be effectively cooled, and the temperature rise can be suppressed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this lighting fixture is the fixture body 1
, A lamp socket 2, a lamp 3, and a louver 4. The device main body 1 has an opening 5 on the lower surface. The device main body 1 of the embodiment has a box shape including a top portion and a peripheral side wall,
A reflector 13 is provided on the inner surface of the top. Further, a frame 10 is provided in the opening 5 for attaching the louver 4. In addition,
A heat radiating hole (not shown) is formed in a top portion and a peripheral side wall of the device main body 1.

[0008] The lamp socket 2 is arranged on the side wall side inside the appliance main body 1 and is mounted such that the lamp mounting portion 11 faces a center direction parallel to the opening surface of the opening 5. The lamp 3 is mounted on the lamp socket 2. Louver 4
Is attached to the appliance body 1 so as to close the opening 5, and the louver 4 has an outer peripheral portion 6 made of metal, which is tall and has a penetrating portion 7 which penetrates through the lamp socket 2.
The inner grid 8 is made of resin, is short, has a substantially V-shaped cross section, and is located closer to the center A of the opening surface of the opening 5 than the sealing portion 9 of the lamp 3. In the embodiment, the outer peripheral portion 6 made of aluminum and the inner grid 8 form a concentric ring shape, and the outer peripheral portion 6 is placed on the frame 10. Reference numeral 12 denotes a connection grid for connecting the outer peripheral portion 6 and the inner ring-shaped grid 8.

According to this embodiment, when the lamp 3 is turned on, convection occurs due to the light heat of the lamp 3 and the outside air rises from the lower side to the upper side of the louver 4. The side surface 14 on the side of the portion 6 is not made of the light of the lamp 3 and made of resin and has poor thermal conductivity.
4, the temperature rise of the air rising by touching the side surface 14 does not rise. And the inner grid 8
Has a substantially V-shaped cross section and is located closer to the center than the sealing portion 9, so that the air flows toward the sealing portion 9 of the lamp 3 and the lamp socket 2 to cool them. That is, since the thermal conductivity of the resin forming the inner grid 8 is about 1/100 of the thermal conductivity of the metal and heat is hardly transmitted, the heat from the lamp 3 is blocked by the inner grid 8, As shown in FIG. 3, the temperature of the air flow a can be lowered, and since the side surface 14 of the lattice 8 of the louver 4 is tilted toward the sealing portion 9, the low temperature air flow a Therefore, the sealing portion 9 and the lamp socket 2 can be effectively cooled by removing the heat of the sealing portion 9 and escaping the heat to the outside.

The outer peripheral portion 6 of the louver 4 is made of metal and has good heat dissipation, so that the heat radiating effect of the sealing portion 9 of the lamp 3 and the lamp socket 2 is excellent. The heat of the outer peripheral portion 6 is also effectively dissipated by the airflow b shown in FIG. That is, the sealing portion 9 of the outer peripheral portion 6
If the resin covering the lamp socket 2 is poor in heat radiation, heat will be trapped in the resin. Therefore, the outer peripheral portion 6 is made of metal, and the heat of the sealing portion 9 and the like is released to seal. The part 9 and the like can be effectively cooled.

As a result, the sealing portion 9 of the lamp 3 and the lamp socket 2 can be effectively cooled, and a rise in temperature can be suppressed. A second embodiment of the present invention is shown in FIGS. That is, in this lighting fixture, the ring-shaped grid 14 is further provided inside the inner grid 8 and the connecting grid 1
5 are provided concentrically, and others are the same as those of the first embodiment.

Although the louver 4 is concentric in the above embodiment, the lattice shape may be square in correspondence with FIG.

[0013]

According to the lighting device of the present invention, convection occurs due to the light heat of the lamp when the lamp is turned on, and the outside air rises from the lower side of the louver to the upper side, but the outer peripheral side of the grid inside the outer peripheral part of the louver. The side surface is not exposed to the light of the lamp and is made of resin and has poor thermal conductivity, so that the temperature rise on the side surface is small, so that the temperature of the air rising by touching this side surface does not rise. In addition, since the inner grid has a substantially V-shaped cross section and is located closer to the center than the sealing portion, the air flows toward the sealing portion and the lamp socket of the lamp to cool them. In addition, the outer periphery of the louver is made of metal and has good heat dissipation, so it has an excellent heat dissipation effect of the lamp sealing part and the lamp socket.Moreover, the heat of the outer periphery is also reduced by the air current flowing between the outer periphery and the inner grid. Dissipates heat effectively. As a result, the sealing portion of the lamp and the lamp socket can be effectively cooled, and the temperature rise can be suppressed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a first embodiment of the present invention.

FIG. 2 is a plan view of the louver.

FIG. 3 is an explanatory diagram showing a flow of air between an inner lattice and an outer peripheral portion.

FIG. 4 is a sectional view of the second embodiment.

FIG. 5 is a plan view of the louver.

FIG. 6 is a sectional view of a conventional louver.

FIG. 7 is a plan view thereof.

FIG. 8 is a cross-sectional view of another conventional louver.

FIG. 9 is a plan view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Instrument main body 2 Lamp socket 3 Lamp 4 Louver 5 Opening 6 Outer peripheral part 7 Penetration part 8 Inner lattice 9 Sealing part 11 Lamp mounting part

Claims (1)

(57) [Scope of request for utility model registration] 1. A lamp body having an opening at a lower surface thereof, and a lamp socket disposed on a side wall inside the lamp body and mounted such that a lamp mounting portion faces a center direction parallel to an opening surface of the opening. And a lamp mounted on the lamp socket, and a louver mounted on the appliance body so as to close the opening, the louver having a metal outer peripheral portion being tall and penetrating the lamp socket. A penetrating portion, and an inner lattice with respect to the outer peripheral portion is made of resin, is short and has a substantially V-shaped cross section, and is located closer to the center of the opening surface of the opening than the sealing portion of the lamp. Lighting equipment featuring.