JPS6318084Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a recessed lighting fixture.

[Background technology]

In recent years, as awareness of energy conservation has improved, insulation materials have been increasingly installed in ceilings and the like. Among the insulation construction methods, the blowing method, in which thin pieces of insulation material are blown in, can be applied not only to new construction but also to existing buildings, but it is also possible to install recessed lighting fixtures on the ceiling, etc. In this case, there was a risk that insulating material particles and dust could enter the interior of the lighting equipment through the heat radiation holes of the lighting equipment, or into the room if the bottom side of the lighting equipment was open.

[Purpose of invention]

In view of the above background, an object of the present invention is to provide an embedded lighting fixture that can prevent dust and the like from entering the lighting fixture during insulation construction while ensuring sufficient heat dissipation.

[Disclosure of the Invention] The present invention is one in which a heat dissipation hole is closed with a closing body that deforms depending on the temperature.Hereinafter, the present invention will be explained based on the embodiments shown in FIGS. 1 to 4.

The lighting fixture main body 1 is formed into a substantially deep bowl shape with an outer flange 2 around the outer periphery of the opening at the lower end, and a plurality of mounting holes 3 are provided on the side surface near the lower end, and wood screws 4 inserted through the mounting holes 3 are inserted into the field in the ceiling surface. It is screwed into the edge 5 and embedded. A socket 7 in which a lamp 6 is attached is attached to the upper inner surface of the luminaire main body 1, and a panel 10 is placed on an annular frame 9 suspended from the luminaire main body 1 by springs 8, 8, with an opening on the lower surface. It's blocked. A plurality of elongated rectangular heat radiation holes 11 are provided on the side surface of the lighting device body 1, and a closing body 12 shaped along the side surface of the lighting device body 1 is screwed at the lower end so as to close the heat radiation hole 11 from the inside at room temperature. installed. The closing body 1 is made of a material that changes its shape depending on temperature, such as bimetal or shape memory alloy, and when the lamp 6 is off, it comes into contact with the side surface of the lighting fixture body and closes the heat radiation hole 11, so that it can be used when installing insulation material, etc. The device prevents the intrusion of dust, etc., and when the lamp is lit, the upper end curves inward to open the heat radiation hole 11 to prevent an excessive rise in temperature, and forms a reflective surface that reflects the light from the lamp 6 downward. We are trying to improve efficiency.

[Effect of idea]

According to the present invention, in a recessed lighting fixture in which the lighting fixture body is embedded in the mounting surface, a heat radiation hole is provided in the lighting fixture body, and the lamp is made of a material whose shape changes depending on the temperature. Sometimes, a closing body is formed apart from the lighting fixture body to form a reflective surface, and the closing body is attached to the inner surface of the lighting fixture body to close the heat radiation hole,
While ensuring sufficient heat dissipation, it is possible to prevent dust from entering during the installation of insulation materials, and when the light is turned on, the closing body functions as a reflector, improving the efficiency of the appliance.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention; Figure 1 is a sectional view, Figure 2 is an exploded perspective view of the main parts, and Figures 3 and 4 are perspective views of the operating state. be. 1...Lighting equipment body, 11...Radiation hole, 12...
...Closed body.

Claims (1)

[Scope of utility model registration request] In recessed lighting fixtures, where the lighting fixture body is embedded into the mounting surface, a heat radiation hole is provided in the lighting fixture body, and the lamp is made of a material whose shape changes depending on the temperature. When the lamp is turned off, the lamp fits tightly to the lighting fixture body, and when the lamp is turned on, it separates from the lighting fixture body. 1. A recessed lighting fixture, characterized in that a closing body is formed so as to form a reflective surface, and the closing body is attached to the inner surface of the lighting fixture body to close the heat radiation hole.