SOLID STATE LIGHT ASSEMBLY WITH CONTROL CIRCUIT
A light assembly that includes a cover, a housing coupled to the cover, and a lamp base coupled to the cover. The light assembly also includes a first circuit board disposed within the housing. The first circuit board has a plurality of light sources thereon. A heat sink is thermally coupled to the light sources and is disposed within the housing. The heat sink includes openings therethrough. Each of the outer edges is in contact with the housing. The light assembly also includes an elongated control circuit board assembly electrically coupled to the light sources of the first circuit board and the lamp base. The control circuit board extends through the openings. The control circuit board has a plurality of electrical components thereon for controlling the light sources.
1 . A light assembly comprising:
a cover;
a housing coupled to the cover;
a lamp base coupled to the cover;
a first circuit board disposed within the housing, said first circuit board having a plurality of light-emitting diodes thereon;
a heat sink thermally coupled to light-emitting diodes disposed within the housing, said heat sink comprising an opening therethrough; and
an elongated control circuit board assembly electrically coupled to the light-emitting diodes of the first circuit board and the lamp base, said control circuit board extending through the opening, said control circuit board having a plurality of electrical components thereon for controlling the light-emitting diodes.
2 . A light assembly as recited in claim 1 wherein the first circuit board radiates heat radially outward therethrough, said heat sink communicating heat toward the lamp base.
3 . A light assembly as recited in claim 1 wherein the heat sink comprises a plurality of spaced-apart layers, wherein each of the plurality of spaced-apart layers are thermally coupled to the housing.
4 . A light assembly as recited in claim 3 wherein the plurality of spaced-apart layers are secured to the housing and have edges in contact with the housing.
5 . A light assembly as recited in claim 3 wherein the plurality of spaced-apart layers are disposed adjacent to a hyperboloidal-shaped portion of the housing.
6 . A light assembly as recited in claim 5 further comprising perforations through said hygerboloidal-shaped portion of the housing.
7 . A light assembly as recited in claim 5 further comprising perforations in said hyperboloidal-shaped portion adjacent to the plurality of spaced-apart layers of the heat sink.
8 . A light assembly as recited in claim 1 wherein the heat sink comprises an anistropically heat-conducting material.
9 . A light assembly as recited in claim 1 wherein the opening of the heat sink is aligned axially with an axis of the light assembly.
10 . A light assembly as recited in claim 1 wherein the opening of the heat sink is aligned axially with a longitudinal axis of the light assembly and coincident with a center point of the cover.
11 . A light assembly as recited in claim 10 wherein the light-emitting diodes are disposed in a ring around the longitudinal axis.
12 . A light assembly as recited in claim 1 wherein the control circuit board is rectangular and planar.
13 . A light assembly as recited in claim 1 wherein the control circuit board extends through the opening and is electrically coupled to the first circuit board.
14 . A light assembly as recited in claim 1 wherein the control circuit board is received within grooves in the lamp base.
15 . A light assembly as recited in claim 14 wherein the grooves comprise electrical contacts for electrically coupling to edge connectors on the control circuit board.
16 . A light assembly as recited in claim 1 wherein the control circuit board comprises wires extending therefrom, said wires received within circuit board openings in the first circuit board.
17 . A light assembly as recited in claim 16 wherein the control circuit board is electrically coupled to the first circuit board with the wires.
18 . A light assembly as recited in claim 1 wherein the heat sink is composed of thermally conductive plastic.
19 . A light assembly as recited in claim 1 wherein the opening is rectangular.
20 . A light assembly as recited in claim 1 wherein the heat sink comprises a central portion extending between a plurality of layers of heat sink fins.