IPC分类号：
F21V29/74 | F21V29/83 | F21Y115/10
国民经济行业分类号：
C4350 | C3874 | C4090 | C3879
当前申请(专利权)人：
EATON INTELLIGENT POWER LIMITED | RENSSELAER POLYTECHNIC INSTITUTE
原始申请(专利权)人：
EATON INTELLIGENT POWER LIMITED | RENSSELAER POLYTECHNIC INSTITUTE
当前申请(专利权)人地址：
30 Pembroke Road,Dublin 4,IE | 110 8th Street J Bldg.,Troy, NY 12180,US
发明人：
TRUBLOWSKI, JOHN | STAHL, LUCAS | SANTIAGO, JEREMY | RING, CHRISTOPHER | JAYAWARDENA, ADIKARAMGE | PERERA, UKWATTE LOKULIYANAGE INDIKA UPENDRA | NARENDRAN, NADARAJAH | MEHTA, NILAY | FREYSSINIER, JEAN PAUL
摘要：
A heat sink for a luminaire includes a central portion having a top surface and a bottom surface. The bottom surface is adapted to receive a lighting arrangement. The heat sink further includes a plurality of arms configured to dissipate heat generated by the lighting arrangement. The plurality of arms extend radially outward from the central portion. Each one of the plurality of arms is substantially arcuate between a proximal end and a distal end.
技术问题语段：
The technical problem addressed in this patent text is how to improve the energy efficiency of luminaires (lighting units) by using LED bulbs that consume less energy and have a longer lifespan compared to traditional incandescent bulbs. However, known heat sinks for LED bulbs are visually unappealing or have limited effectiveness and design flexibility, which can be attributed to the manufacturing process.
技术功效语段：
The patent text describes a heat sink for a luminaire which has a central portion and a plurality of arms that extend radially outward from the central portion. The arms are designed to dissipate heat generated by the lighting arrangement. The text also mentions a connection mechanism that can adjust the orientation of the heat sink relative to the base and a method of manufacturing the luminaire which includes depositing layers of material to form the main portion and securing the LED lighting arrangement to it, as well as depositing layers of material to form a heat dissipation structure on the second surface with a plurality of fins that have a V-shaped and linear portion. The technical effects of the invention include improved heat dissipation, adjustable orientation of the heat sink, and improved lighting arrangement.
权利要求：
1. A heat sink for a luminaire comprising: a central portion having a top surface and a bottom surface, the bottom surface being adapted to receive a lighting arrangement; and a plurality of arms configured to dissipate heat generated by the lighting arrangement, the plurality of arms extending radially outward from the central portion, each one of the plurality of arms being substantially arcuate between a proximal end and a distal end.
2. The heat sink of claim 1, where at least one of the plurality of arms is hollow and defines an interior space that extends between the proximal end and the distal end.
3. The heat sink of claim 2 further comprising at least one vent provided on the hollow arm, the at least one vent being in fluid communication with the interior space.
4. The heat sink of claim 3, wherein the hollow arm includes a first side surface and a second side surface, and wherein the at least one vent includes a first vent and a second vent, the first vent being circular and provided on the first side surface toward the proximal end of the arm, the second vent being stadium-shaped and provided on the first side surface toward the distal end of the arm.
5. The heat sink of claim 2 further comprising a plurality of fins provided in the interior space.
6. The heat sink of claim 5, wherein the hollow arm includes a first interior sidewall and a second interior sidewall, and wherein the plurality of fins includes full width fins and partial width fins, the full width fins having a width that is equal to a distance between the first interior sidewall and the second interior sidewall, the partial width fins having a width that is less than the distance between the first interior sidewall and the second interior sidewall.
7. The heat sink of claim 1, wherein the plurality of arms are adapted to receive a reflector, the reflector being configured to direct and focus light emitted by the lighting arrangement.
8. The heat sink of claim 7 further comprising at least one locking tab that is configured to attach the reflector to the heat sink, the at least one locking tab including a head portion and a neck portion, the neck portion connecting the head portion to the central portion, the head portion having a diameter that is larger than a diameter of the neck portion.
9. The heat sink of claim 7 further comprising a seal groove formed as a circular recess on the central portion, the seal groove being configured to receive a seal for creating a waterproof barrier between the heat sink and the reflector.
10. The heat sink of claim 1 further comprising a male adjustment part, the male adjustment part being configured to interact with a female adjustment part provided on a base to connect the heat sink to the base, the male adjustment part including a ball portion that is received in a socket portion of the female adjustment part.
11. The heat sink of claim 10, wherein the male adjustment part includes a locking tab provided on the ball portion, and wherein the female adjustment part includes a plurality of slots provided on the socket portion, the locking tab engaging with one of the plurality of slots to fix an orientation of the heat sink relative to the base.
12. A method of manufacturing a luminaire comprising the steps of: depositing layers of material to form a main portion having a first surface and a second surface opposite the first surface; securing an LED lighting arrangement to the first surface; and depositing layers of material to form a heat dissipation structure, the heat dissipation structure being provided on the second surface, the heat dissipation structure including a plurality of fins, each fin of the plurality of fins including a V-shaped portion and a linear portion, the linear portion connecting the V-shaped portion to the main portion.
13. The method of manufacturing a luminaire of claim 12 further comprising depositing layers of material to form a reflector, the reflector being secured to the first surface.
14. The method of manufacturing a luminaire of claim 13, wherein the reflector and the main portion are formed as separate, discrete elements.
15. The method of manufacturing a luminaire of claim 13, wherein the reflector and the main portion are formed as a single integral element.