US 8,011,809 B2 · Light-emitting diode module with heat dissipating structure and lamp with light-emitting diode module

Abstract

A lamp (6) includes a housing (5) mounted to a lamp post (4) and a light-emitting diode module (10) mounted in the housing (5). The light-emitting diode module (10) includes a metal substrate (21) and a plurality of light-emitting diode dies (221) mounted on a face (211) of the metal substrate (21). A jacket (11) has a coupling surface (112) engaged with the other face (212) of the metal substrate (21). A heat conduction pipe (12) includes a portion (123) received in a longitudinal hole (111) of the jacket (11). The coupling surface (112) of the jacket (11) has an opening (114) in communication with the longitudinal hole (111). A portion of an outer periphery (124) of the portion (123) of the heat conduction pipe (12) is in direct, thermal contact with the other face (212) of the metal substrate (21) through the opening (114) of the jacket (11) to absorb heat generated by the light-emitting diode dies (221). A finned heat sink (13) is mounted on another portion (121) of the heat conduction pipe (12) outside the jacket (11) to dissipate heat transferred to the heat conduction pipe (12) into the environment.

Claims14

Dependent claims

A light-emitting diode module comprising, in combination:

a metal substrate having a first face and a second face opposite to the first face;
a plurality of light-emitting diodes mounted to the first face of the metal substrate and in direct, thermal contact with the metal substrate;
a jacket including a coupling surface engaged with the second face of the metal substrate, with the jacket further including a plurality of longitudinal holes parallel to and spaced from one another and each having a longitudinal axis, with a spacing ranging from 0 to 0.5 mm being defined between an inner periphery of each of the plurality of longitudinal holes and the coupling surface;
a plurality of first heat conduction pipes each including a first portion received in one of the longitudinal holes of the jacket and a second portion outside the jacket;
and
a finned heat sink mounted on the second portions of the plurality of first heat conduction pipes and including a plurality of fins to dissipate heat transferred to the first heat conduction pipes into an environment outside the finned heat sink.

3 more elements

A lamp comprising, in combination:

a housing adapted to be mounted to a lamp post;
a metal substrate mounted in the housing and having a first face and a second face opposite to the first face;
a plurality of light-emitting diodes mounted to the first face of the metal substrate and in direct, thermal contact with the metal substrate;
a jacket including a coupling surface engaged with the second face of the metal substrate, with the jacket further including a plurality of longitudinal holes parallel to and spaced from one another and each having a longitudinal axis, with a spacing ranging from 0 to 0.5 mm being defined between an inner periphery of each of the plurality of longitudinal holes and the coupling surface;
a plurality of first heat conduction pipes each including a first portion received in one of the plurality of longitudinal holes of the jacket and a second portion outside the jacket;
and
a finned heat sink mounted on the second portions of the plurality of first heat conduction pipes and including a plurality of fins to dissipate heat transferred to the plurality of first heat conduction pipes into an environment outside the finned heat sink.

4 more elements

Dependencies are inferred from the claim text.

Light-emitting diode module with heat dissipating structure and lamp with light-emitting diode module

Life of this patent

Light-emitting diode module with heat dissipating structure and lamp with light-emitting diode module

Life of this patent

Abstract

Claims14