Heat sink with double sided reference pin
AssigneeLumileds LLC
InventorsWim Boogaard, Piet Verburg, Pieter van der Wekken
Life of this patent
Estimating the term…
Abstract
A heat sink, lighting device and method of manufacture are described. A heat sink includes at least one sheet metal having a first surface and a second surface, at least one first reference pin extending at least in part from the first surface, and at least one second reference pin extending at least in part from the second surface and located within a diameter of, and concentrically with, the at least one first reference pin. The diameter of the at least one first reference pin being larger than a diameter of the at least one second reference pin.
Claims16
A heat sink configured for mounting a lighting device thereupon, the heat sink comprising:
- at least one sheet metal having a first surface and a second surface opposite the first surface;
- at least one first reference pin deep drawn from the at least one first sheet metal so as to extend outward at least in part from the first surface;
- and
- at least one second reference pin deep drawn from the at least one first sheet metal so as to extend outward at least in part, from the second surface by a length that references the lighting device to a corresponding optical component when the lighting device is mounted on the heat sink, and located within a diameter of, and concentrically with, the at least one first reference pin, the diameter of the at least one first reference pin being larger than a diameter of the at least one second reference pin.
A lighting device comprising:
- at least one heat sink comprising:
- at least one sheet metal having a first surface and a second surface opposite the first surface,
- at least one first reference pin drawn from the at least one sheet metal and extending outward at least in part from the first surface, and
- at least one second reference pin drawn from the at least one sheet metal and extending outward at least in part from the second surface and located within a diameter of, and concentrically with, the at least one first reference pin, the diameter of the at least one first reference pin being larger than a diameter of the at least one second reference pin;
- and
- at least one lighting module mounted to at least one receiving section of the at least one heat sink;
- wherein at least one of the first and second reference pins extends from the second surface by a length that aligns the at least one lighting module to a corresponding optical component when the at least one lighting module is mounted to the at least one receiving section.
A method of manufacturing a lighting device, the method comprising:
- providing at least one sheet metal to form a heat sink;
- deep drawing at least one first reference pin into the at least one sheet metal in a first direction, the at least one first reference pin drawn from the at least one sheet metal on a first surface such that the at least one first reference pin extends outward from the first surface by a length that references at least one lighting module to at least one corresponding optical component;
- deep drawing at least one second reference pin into the at least one sheet metal in a second direction opposite the first direction, the at least one second reference pin deep drawn from a top side of the at least one first reference pin such that the at least one second reference pin extends outward from the second surface by a length that references at least one lighting module to the at least one corresponding optical component;
- providing the at least one lighting module;
- and
- arranging the at least one lighting module in at least one receiving section of the heat sink, including aligning the at least one lighting module with the at least one corresponding optical component by referencing at least one of the length of the first reference pin and the length of the second reference pin.
Dependencies are inferred from the claim text.