LED lamp assembly
View Patent ↗A robust LED lamp may be assembly by forming a heat sinking sandwich with two metal heat sinks positioned around the circuit board and pinned together a heat conductive element. The assembly is positioned by pressing it into a base providing electrical connections. The robust assembly is rapidly assembled, thermally effective in draining or spreading heat from the circuit board and is readily adaptable to a variety of applications lighting. The heat sink may be decorated, colored or otherwise esthetically enhanced for consumer appreciation.
1. An LED lamp assembly comprising:
a planar circuit board having a substantially greater length and width than thickness, and having a first major side and a second major side;
at least one LED mounted on one of said major sides of the circuit board;
an electrical coupling extending from an end of the circuit board;
electrical circuitry supported on the circuit board and coupling the at least one LED to the electrical coupling;
a first heat sink having a planar face sized and shaped to substantially span and fit side by side to said first major side of the circuit board, the heat sink including recesses or openings of sufficient size and shape to mechanically accommodate any adjacent electrical components formed on the circuit board, and including at least one recess receiving the at least one LED and permitting the transmission of light from the at least one LED to the exterior of the lamp assembly, the planar side of the first heat sink being mechanically positioned to be in close thermal contact with said first major side of the circuit board;
a second heat sink mechanically coupled to the second major side of the circuit board, the first and second heat sinks being riveted one to the other to press against the circuit board disposed intermediate said first and second heat sinks;
the circuit board and first and second heat sinks forming a circuit board and heat sink assembly defining an axially extending body having substantially greater length and width than thickness, the electrical coupling extending beyond the periphery of the first heat sink exposed for electrical connection; and
a base mechanically coupled to the circuit board and heat sink assembly, and having at least one latching face for mechanically coupling the lamp assembly in a lamp socket.
2. The LED lamp assembly in claim 1 , wherein the second heat sink is similar to the first heat sink and is mechanically coupled to the second major side of the circuit board, the first and second heat sinks capturing the circuit board intermediate the first heat sink and the second heat sink.
3. The LED lamp assembly in claim 1 , wherein the first heat sink and the second heat sink are formed separate from the circuit board.
4. The LED lamp assembly in claim 1 , wherein the electrical coupling comprises lugs electrically coupled to the circuit board and extended into the socket cavity of the base.
5. The LED lamp assembly in claim 1 , wherein the base includes a seal element positioned adjacent the latching face.
6. The LED lamp assembly in claim 1 , wherein the base includes a bayonet latch and a ring seal.
7. An LED lamp assembly comprising:
a planar circuit board having substantially, greater length and width than thickness, and having a first major side and a second major side;
at least one LED mounted on the circuit board;
an electrical coupling extending from the circuit board, the electrical coupling comprising lugs electrically coupled to the circuit board;
electrical circuitry and components supported on the circuit board and coupling the at least one LED to the electrical coupling;
a first heat sink having substantially greater length and width than thickness, and having a planar face, the first heat sink including recesses or openings sufficient to mechanically accommodate any corresponding electrical components formed on the circuit board, and including at least one recess receiving the at least one LED permitting the transmission of light from the at least one LED to the exterior of the lamp assembly, the first heat sink being formed separate from the circuit board and the planar face of the first heat sink being mechanically positioned to be in close thermal contact with the first major side of the circuit board;
the circuit board and the first heat sink forming an axially extending body having substantially greater length and width than thickness;
a second heat sink being formed separate from the circuit board and mechanically coupled to the second major side of the circuit board, the circuit board being disposed intermediate the first heat sink and the second heat sink;
the first heat sink and the second heat sink riveted one to the other to press against the circuit board;
wherein the electrical coupling extends beyond respective peripheries of the first heat sink and the second heat sink so as to be exposed for electrical connection; and
a base mechanically coupled to the axially extending body, the base having at least one latching face for mechanically coupling the lamp assembly in a lamp socket, the base including a seal element positioned adjacent the latching face.
8. The LED lamp assembly in claim 7 , wherein the lugs extending form the circuit board extend through the socket cavity of the base for electrical coupling.
9. The LED lamp assembly in claim 7 , wherein the second heat sink is similar to the first heat sink.