摘要:
A lighting luminaire for use in a refrigerated display case includes an LED mounting portion comprising a plurality of light emitting diodes (“LEDs”) mounted thereon, a reflector, and a lens. The LED mounting portion and reflector are sized and arranged to form a reflective cavity for diffusing and directing light from the plurality of LEDs through the lens and out of the luminaire. The LED mounting portion and reflector are either attached to each other as separate components or are integrally formed. The lens is held in place in the luminaire between the LED mounting portion and the reflector or is mounted directly on the LED mounting portion over the plurality of LEDs. The LED mounting portion and/or reflector have a reflective surface for reflecting light emitted by the LEDs. Methods for retrofitting an existing luminaire in a refrigerated display with an LED luminaire are also provided.
摘要:
A lighting module includes an array of light emitters, a heat pipe having a flat portion, the array of light emitters being mounted to the flat portion, a liquid inside the heat pipe, the liquid selected to vaporize upon exposure to heat from the array, and a cooling unit thermally coupled to the heat pipe configured to cool the vaporized liquid.
摘要:
A lighting device, or LED lamp 10 is described with a base element 12 for electrical contacting and mechanical mounting and an LED arrangement 20 with at least one LED element 70. The LED arrangement 20 is spaced from the base element 12 along a longitudinal axis L. In order to provide a lighting device and a lighting arrangement with a matched optical and thermal design, i. e. where both effective heat dissipation and an advantageous light intensity distribution are achieved, an upper heat dissipating structure 60 is arranged next to the LED arrangement 20 with at least one heat dissipation element 62 made out of a heat conducting material. The upper heat dissipating structure 60 is shaped to include at least a first end 64a and a second end 64b spaced from the first end 64a along a traverse axis T. The traverse axis T is substantially perpendicular to the longitudinal axis L. The LED arrangement 20 is arranged between the first and second ends 64a, 64b.
摘要:
A light emitting assembly includes an elongated heat sink 22 of aluminum material, a heat spreader 24 of a copper material disposed on the heat sink 22, and light emitting diodes 26 disposed on the heat spreader 24. An insulating layer 54 is disposed on the heat spreader 24 and a circuit 62 including a ribbon 64 extends continuously along the insulating layer 54 between the light emitting diodes 26. A conformal coating 70 is disposed over the circuit 62 so that the heat sink 22, conformal coating 70, the ribbon 64, the insulating layer 54, and the heat spreader 24 are sandwiched together. A reflector 72 is disposed around each of the light emitting diodes 26 for reflecting the light in a predetermined direction.
摘要:
A light emitting assembly (10) includes a heat sink (12) defined by a plurality of independent sections (14). Each section (14) includes walls (24, 26) extending transversely from the mounting surface (20) to define an open container. Light emitting diodes (52) are disposed at the bottom of each open container. Each section (14) includes first fins (32) extending outwardly from the walls (24, 26) and extending toward the first fins (32) of an adjacent section (14). In one embodiment, the sections (14) can be cantilevered to a planar surface (38) extending longitudinally across an end wall (24) of each section (14). In a second embodiment, the sections (14) can be interconnected by bridges (42) and then vertically mounted to a wall with a mounting bracket (44). The sections (14) can include second fins (34) extending from a heat transfer surface (22) facing opposite the mounting surface (20). The second fins (34) are disposed between the heat transfer surface (22) and the mounting bracket (44).
摘要:
An integrated multi-layered illuminating unit and an integrated multi-layered illuminating assembling unit are provided in the disclosure. The illuminating unit provided in the present invention can be adapted to different purposes and locations of use through a flexible number of heat dissipating bases used and adaptable assembling methods, in other words, the present invention provides an illuminating unit which can be assembled into specific forms depending on different applications and purposes. The illuminating unit and can provide various irradiation intensity and rage, wherein the heat dissipating bases are connected and assembled with each other through connecting members with an easy, fast and convenient method, thus the illuminating unit provided is very time and effort saving regarding its production and maintenance.
摘要:
A lighting device comprises at least a light source (13, 33), a light emitting surface, an air inlet aperture (8, 9, 28), an air outlet aperture (8, 9, 28) and a cooling unit (4, 24) for moving air from the air inlet aperture (8, 9, 28) through the cooling unit (4, 24) to the air outlet. The air inlet aperture (8, 9, 28) and the air outlet aperture (8, 9, 28) are both located on the same side of the lighting device as at least part of the light emitting surface.
摘要:
A thermal management system for electronic devices is provided. The thermal management system includes a plurality of synthetic jets provided in a stacked arrangement and separated by respective spacers within the stacked arrangement. The stack of synthetic jets may be used to facilitate airflow in the thermal management system, such as to facilitate air flow over a heat sink in one implementation.
摘要:
The present invention includes: a casing having a bottom wall part and a pair of side wall parts extending upward from this bottom wall part; a rod-shaped lens provided above an LED substrate and along a longitudinal direction inside the casing; and a fixing mechanism for fixing the lens to the pair of side wall parts. The fixing mechanism includes: upwardly facing surfaces longitudinally extending along an inner surface of the side wall parts; downwardly facing surfaces longitudinally extending along side peripheral surfaces of the lens; a concave groove longitudinally extending above the upwardly facing surface on the inner surface of each of the side wall parts; and elastic bodies fitting into the concave grooves to be in contact with the side peripheral surfaces of the lens in a state that the downwardly facing surfaces are in contact with the upwardly facing surfaces.
摘要:
An LED street lamp has a lamp body, at least one LED module and a power supply. The lamp body includes at least one heat dissipating portion and a connecting portion. Each of the at least one heat dissipating portion has two main fins. The main fins are crossed to divide each of the at least one heat dissipating portion into four fan-shaped regions. Each fan-shaped region has multiple auxiliary fins and multiple ventilation channels. Each of the at least one LED module is secured to one of the at least one heat dissipating portion of the lamp body. The power supply is mounted on the connecting portion of the lamp body. With the above-mentioned structure, the LED street lamp can provide improved heat dissipation and dust does not easily accumulate in the ventilation channels.