Fireproof down lamp

Abstract

The invention relates to a fireproof down lamp which comprises a down lamp body and a fireproof heat insulation device, wherein the down lamp body adopts a shell structure of which the top wall is provided with a through hole; a limiting table is arranged in a position, which is close to the through hole, on the down lamp body; the fireproof heat insulation device comprises a fireproof cover, a supporting part and a press-against part; the fireproof cover is arranged at the upper part of the down lamp body; the press-against part is arranged in the down lamp body; one end of the supporting part is pressed against the press-against part and the other end of the supporting part supports the fireproof cover to reserve a certain distance between the fireproof cover and the top wall of the down lamp body so as to form a heat dissipation passage. In the case of a fire or at a high temperature, the supporting part or the press-against part can be fused to enable the fireproof cover not to be supported and to fall on the limiting table at the moment, the fireproof cover seals up the through hole. The fireproof down lamp not only can ensure the heat dissipation requirement when in use, but also can effectively block flame from being diffused towards a ceiling through a heat dissipation hole in the case of the fire and take fire prevention and heat insulation effects.

Description

technical field [0001] The invention relates to the field of LED lighting, in particular to a fireproof downlight. Background technique [0002] The downlight is a kind of lighting fixture that can be embedded in the ceiling perforation. It has the characteristics of concealed setting and can fully meet the requirements of the interior decoration space. However, the downlight is embedded in the perforation on the ceiling, so it has the disadvantage of poor heat dissipation. As the lighting time prolongs, the temperature rises, which will inevitably affect the service life of the lamp. In order to overcome this defect, the lamp body of the downlight Usually designed with cooling holes, the temperature inside the lamp can be lowered in time through cold convection with the outside world during lighting. For example, the date of authorization announcement is January 16, 2013, and the Chinese utility model patent with the patent number 201220345510.9 discloses an embedded LED d...

AI Technical Summary

Problems solved by technology

[0003] Although the heat dissipation holes on the radiator can accelerate the flow of hot and cold air and improve the heat dissipation efficiency of the downlight, if a fire occurs, the high-temperature air will inevitably rise and enter the space above the ceiling through the heat dissipation holes of the downlight, causing the flames to ignite. Sprawl from the space above the ceiling to the space above the ceiling with catastrophic results

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