Fire resistant lighting fitting

A lamp and lamp installation technology, which is applied in fire rescue, lighting devices, cooling/heating devices of lighting devices, etc., can solve the problems of increasing cost, complexity of producing lamps, high temperature of lamps, etc., and achieves the effect of simplifying production and reducing costs

Inactive Publication Date: 2008-06-25
RD EURO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Providing a second layer of intumescent material adds to the cost and complexity of producing the luminaire
However, without a vent hole, the luminaire may reach unacceptably high temperatures in use

Method used

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  • Fire resistant lighting fitting
  • Fire resistant lighting fitting

Examples

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Embodiment Construction

[0018] Hereinafter, top, bottom, side and similar terms are used for convenience only, referring to the downlight and the intended orientation shown in the attached drawings, and shall not be taken as other limitations.

[0019] As shown in FIG. 1 , a downlight 1 is mounted in a hole 2 formed in a gypsum ceiling panel 3 .

[0020] The downlight 1 comprises a housing 4 made of 1 mm thick steel and powder coated. The cover body 4 has a substantially cylindrical side wall, the lower end is open (as shown in the figure), and the upper end is closed to form the top 5 of the downlight. A roughly circular hole with a diameter of about 5 mm is opened at or near the center of the top 5 of the cover body 4 . This hole can be used for a pair of insulated electric wires 7 to penetrate in the described cover body, and a plastic grommet 6 is housed on the hole, prevents that metal cover body 4 steely tops 5 form the cutting edge of hole damage electric wire 7. The size of the holes is as ...

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PUM

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Abstract

A fire resistant / fire proof lighting fitting 1 intended to be mounted in a panel 3. The fitting includes a body 4 in which a lamp may be mounted. The body 4 includes one or more ventilation apertures 8 which are sized and configured to allow heat generated by a lamp in the body to be adequately vented to the exterior of the body, but to inhibit passage of flames from the interior of the body tothe exterior of the body. The ventilation apertures may be formed by parallel horizontal elongated slots in the body. The or each ventilation aperture may be configured so that when the fitting is installed in its intended orientation an at least partially downward path is defined between the interior and exterior of the body of the fitting through the aperture.

Description

technical field [0001] The utility model relates to a fireproof lamp, although it is not the only one, in particular to a fireproof downlight. Background technique [0002] British Standard 476 Part 21 requires that the installation of luminaires on ceiling panels must not impair the fire performance of these panels. One way to solve this problem is to use so-called fire-resistant light fixtures. A known fire rated downlight is disclosed in British Patent GB2422191A. This luminaire uses a layer of expansion material on the flange to block the flame from passing through the passage between the luminaire and the ceiling panel on which the luminaire is installed, and a second layer of expansion material on the vent hole of the luminaire to block the flame from passing through. The spreading channels of these pores. The vent holes allow the heat generated by the light bulbs in the fixture to escape. [0003] Providing a second layer of intumescent material adds to the cost a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V25/12F21V29/00
CPCF21V25/00F21S8/02F21V29/2293F21V29/004F21V23/026F21V29/83A62C3/16F21V25/12
Inventor 华迪
Owner RD EURO
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