US 2013/0094238 A1Published application

Led tubular lamp

OwnerChen-Lung Huang, Chuan-Pan Huanginventors

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Abstract

An LED tubular lamp includes a shell, a base plate and a lamp shade. The shell is made of one or more shell sections respectively possessing two or more convection holes to carry out ventilation. The shell section has two placing grooves for depositing the base plate and two combining grooves for combining with the lamp shade. The base plate has two sides fitting in the two placing grooves and an upper surface coated with a heat conducting paint, loaded with the LEDs as a light source. So the heat may be absorbed by the heat conducting paint and transmitted through the convection holes into the air. The lamp shade made integral has two combining members to combine with the combining grooves of the shell. The light of the LEDs shines through the lamp shade. The lamp disperses the heat quickly to prolong the service life of the LEDs.

Claims17

Dependent claims

A LED tubular lamp at least comprising:

a shell consisting of one or more shell sections, said shell section provided with two or more convection holes to carry out ventilation for dispersing high heat generated by LEDs, said shell section further provided with two placing grooves symmetrically located on an inner wall for depositing a base plate and with two combining grooves symmetrically located on a lower side of an outer surface for depositing a lamp shade;
said base plate deposited in said placing grooves and provided with plural LEDs as a light source, a layer of heat conducting paint coated on said base plate to absorb and disperse some of the heat generated by said LEDs so that the heat can be swiftly scattered out into the air via ventilation of said convection holes of said shell;
said lamp shade provided with a combining member respectively at two lengthwise sides to combine with said combining grooves of the shell and employed to let light produced by said LEDs shine out through it;
and
characterized by taking advantage of said convection holes of said shell to carry out ventilation and said heat conducting paint coated on said base plate to absorb heat and disperse it by radiation so that heat generated by said LEDs can be quickly scattered out of said tubular lamp to prolong service life of said LEDs.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/273,615Filed 14 Oct 2011
Published: 18 Apr 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

F21V 29/83
Characterised by passive heat-dissipating elements, e.g. heat-sinks: the elements having apertures, ducts or channels, e.g. heat radiation holes
F21K 9/275
Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes: details of bases…
F21V 19/003
The light sources being semiconductors devices, e.g. LEDs: fastening of light source holders, e.g. of circuit boards or substrates holding light…
F21V 29/87
Characterised by the material: organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor