US 2014/0191658 A1 · SELF-BALLASTED LAMP AND LIGHTING EQUIPMENT

Abstract

The invention provides a self-ballasted lamp having high heat radiation performance, which is lightweight and inexpensive. A substrate having LED elements mounted is provided at one edge side of the radiator, and a cap is provided at the other edge side the radiator. A lighting circuit is accommodated between the radiator and the cap. The radiator includes a cylindrical cover member and an annular radiation member fitted to the outer circumferential part of the cover member and is composed by combining the cover member and the radiation member together. The cover member and the radiation member are made of metal and are formed by press-working.

Claims13

Dependent claims

A self ballasted lamp comprising:

a substrate having an LED module formed so as to enable heat conduction;
a metallic radiator having one edge part brought into heat conduction contact with the substrate, a heat radiation periphery part and the other edge part opened in an opposite side from the one edge part;
a circuit holder inserted into an opening of the other end part of the radiator;
a lighting circuit accommodated in the circuit holder;
and
a cap fitted and fixed on an outer circumferential part of the circuit holder.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/210,157Filed 13 Mar 2014

Priority

JP 2009-13061429 May 2009

Published

10 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H05B 44/00
Circuit arrangements for operating electroluminescent light sources
F21K 9/232
Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with…
F21V 29/74
Characterised by passive heat-dissipating elements, e.g. heat-sinks: with fins or blades
H05B 45/00
Circuit arrangements for operating light-emitting diodes [led]

Self-ballasted lamp and lighting equipment

Life of this patent

Self-ballasted lamp and lighting equipment

Life of this patent

Abstract

Claims13