Source: https://patents.google.com/patent/KR20100059989A/en
Timestamp: 2019-12-13 16:39:43
Document Index: 276096365

Matched Legal Cases: ['Application No. 60', 'Application No. 61', 'Application No. 61', 'Application No. 61', 'Application No. 10', 'Application No. 12']

KR20100059989A - Light emitting diode recessed light fixture - Google Patents
KR20100059989A
KR20100059989A KR1020107008457A KR20107008457A KR20100059989A KR 20100059989 A KR20100059989 A KR 20100059989A KR 1020107008457 A KR1020107008457 A KR 1020107008457A KR 20107008457 A KR20107008457 A KR 20107008457A KR 20100059989 A KR20100059989 A KR 20100059989A
KR101533128B1 (en
2012-01-19 First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40468427&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR20100059989(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Light Emitting Diode Recessed Lighting Fixture {LIGHT EMITTING DIODE RECESSED LIGHT FIXTURE}
BACKGROUND OF THE INVENTION The present invention relates generally to buried luminaires and, more particularly, to light emitting diode (LED) downlight can fixtures for buried luminaires.
The application claims of the present invention are filed on September 21, 2007, in accordance with section 119 of United States Law 35, US Provisional Patent Application No. 60 / 994,792, entitled “LED Downlight Can Mechanism”, January 9, 2008 US Provisional Patent Application No. 61 / 010,549, filed dated and entitled "Different Reflector for LEDs or Small Light Sources", filed February 15, 2008 and entitled "LED Downlight Can Mechanism" And US Provisional Patent Application No. 61 / 065,914, and US Provisional Patent Application No. 61 / 090,391, filed August 20, 2008, entitled “LED Downlight Can Mechanism”. Moreover, this application is filed on September 22, 2008 and co-pending US Patent Application No. _______ Invention, entitled “Differencing Reflector,” filed on September 22, 2008 and entitled “LED US Patent Application No. _______ Invention, filed on September 22, 2008, and entitled "Optical Coupler for LED Apparatus," US Patent Application No. _______, and No. 29 / 305,946, filed March 31, 2008 and entitled "LED Lighting Fixture". The complete specification of each of these prioritized inventions and related applications is hereby fully incorporated by reference.
Luminaires are systems for producing, controlling, and / or distributing light for illumination. For example, the luminaire may include a system that outputs or distributes light to the environment, thereby allowing certain items in the environment to be viewed.
An embedded luminaire is a luminaire that is installed in a hollow opening on a ceiling or other surface. Typical buried luminaires include hanger bars tied to spaced ceiling supports or beams. The plaster frame extends between the hanger bars and includes an opening configured to receive a lamp housing or "can" mechanism.
Typical buried luminaires include lamp sockets associated with gypsum frames and / or cans. The lamp socket can accommodate an incandescent lamp or a compact fluorescent lamp (CFL). As is well known in the art, a typical lamp is returned to the lamp socket to complete the electrical connection between the power source and the lamp.
Moreover, lighting manufacturers are engrossed in producing energy efficient alternatives to incandescent lamps. One such alternative is the CFL described above. CFLs fit into existing incandescent sockets and generally use less energy to emit the same amount of visible light as incandescent lamps. However, CFLs contain mercury, which makes it difficult to dispose of CFLs and raises environmental concerns.
Another mercury-free alternative to incandescent lamps is LED. LEDs are solid state lighting devices with higher energy efficiency and longevity than both incandescent and CFLs. However, LEDs do not fit into existing incandescent sockets and generally require complex electrical and thermal management systems. Therefore, typical buried luminaires did not use LED light sources. Accordingly, there is a need for using LED light sources in embedded luminaires in the field of embedded luminaires that currently use LED light sources.
It is an object of the present invention to provide a method and apparatus for using an LED light source in an embedded luminaire to have a higher energy efficiency and lifetime than existing incandescent lamps.
The present invention provides a buried luminaire having an LED light source. The luminaire includes a "can" or housing in which the LED module is installed. The LED module includes a single LED package that generates all or substantially all of the light emitted by the embedded luminaire. For example, an LED package can include one or more LEDs installed on a common substrate. Each LED is an LED element or LED die configured to be coupled to a substrate. The LEDs can be arranged in any of many different configurations. For example, the LEDs may be arranged in a circular-shaped area having a diameter of 2 inches or less, or may be arranged in a rectangular-shaped area having a length of 2 inches or less and a width of 2 inches or less.
The LED package may be thermally coupled to a heat sink configured to transfer heat from the LEDs. The heat sink can have any of many other configurations. For example, the heat sink may include fins extending from the core member and core member extending away from the LED package. Each pin may comprise a curved radial portion and / or a straight portion. For example, each pin may include a radiating portion extending from the core member, and a straight portion extending further from the radiating portion. In this configuration, heat from the LEDs is along the path from the LEDs to the core member, from the core member to the radiating portion of the fins, from the radiating portion of the fins to the corresponding straight portion, from the corresponding straight portion to the surrounding environment. Delivered. Heat may also be transferred by moving directly from the core member and / or from the fins to one or more gaps between the fins. The LED package can be directly coupled to another member or core member disposed between the LED package and the core member.
A reflector housing can be installed substantially around the LED package. For example, the reflector housing may be coupled to the heat sink and / or can. The reflector housing can be configured to function as a second heat sink for the LED module and to receive the reflector. For example, the reflector housing may be composed of a conductive material for transferring heat away at least partially away from the LED package. The reflector can be made of any material for reflecting, refracting, transmitting, or diffusing light from the LED package. For example, the reflector may include reflection, semi-reflection, semi-diffusion, or diffused finish, such as shiny white paint or scattered white paint. The reflector can have any of many different configurations. For example, the side profile of the reflector may have a substantially bell shaped structure that includes a gentle curve with a point of refraction. The upper and lower portions of the curve are disposed on opposite sides of the inflection point. Also, the lower part of the curve may be wider than the upper part of the curve to meet the requirements of the top-down flash while producing a gentle, mixed light pattern.
The optocoupler may be installed in a reflector housing for reflecting or guiding light emitted by the LED package and / or for covering an electrical connection to the substrate of the LED package. For example, the optocoupler includes a member with a central channel aligned with one or more LEDs of the LED package, such that the channel is such that portions of the member around the channel cover electrical connections to the substrate of the LED package. To guide the light emitted by the LEDs. The optocoupler may have any of many other structures that may or may not correspond to the configuration of the LED package. For example, depending on the locations and sizes of electrical connections to the substrate, the portion of the optical coupler around the channel can have a substantially square, rectangular, circular, conical, or truncated cone shape.
LED modules can be used for both new construction and retrofit applications. Retrofit applications may include positioning the LED module within an existing LED or non-LED fixture. In order to accommodate installation in a non-LED fixture, the LED module has a member comprising a profile substantially corresponding to the inner profile of the can of the non-LED fixture so that the member is positioned on top of the can when the LED module is installed in the can. Create a junction box between and the member. To install the LED module, one can electrically connect an Edison base adapter to all existing non-LED fixtures and LED modules. For example, one can cut at least one other wire to remove the Edison base from an existing instrument, and remove the Edison screw-in plug from the Edison base adapter. The at least one other wire can be cut to make a connection, and the cut wires can be connected together to electrically couple the Edison base adapter and the existing instrument. Optionally, a person can detach the socket from an existing instrument and screw the Edison base adapter into the socket to electrically couple the Edison base adapter to the existing instrument. The adapter may house at least a portion of the Edison base adapter and the wires coupled thereto.
These and other aspects, features, and embodiments of the present invention are intended to those skilled in the art in view of the detailed description of the embodiments described below, which illustrate the best mode for carrying out the invention as it is currently recognized. Will be clear.
1 is a plan view of a hanger bar, a gypsum frame, a can, and an adapter of a buried light fixture according to some example embodiments;
FIG. 2 is a cross-sectional view of the recessed luminaire of FIG. 1 in accordance with some example embodiments. FIG.
3 is a cross-sectional view of an LED module of a buried luminaire according to some example embodiments;
4 is a plan view of the LED module of FIG. 3, in accordance with some example embodiments;
5 is a cross-sectional view of the LED module of FIG. 3 in accordance with some example embodiments;
FIG. 6 is a perspective cross-sectional view of the LED module of FIG. 3 in accordance with some example embodiments. FIG.
FIG. 7 is a bottom view of the LED module of FIG. 3, in accordance with some example embodiments. FIG.
8 is a perspective exploded view of the LED module of FIG. 3 in accordance with certain example embodiments;
9 is a cross-sectional view of the heat sink of the LED module of FIG. 3 in accordance with some example embodiments;
FIG. 10 illustrates a thermal scan of a heatsink of the LED module of FIG. 3 in accordance with certain example embodiments. FIG.
11 is a perspective cross-sectional view of the reflector housing of the LED module of FIG. 3 in accordance with some example embodiments;
12 is a perspective cross-sectional view of a reflector inserted into the reflector housing of FIG. 11 in accordance with some example embodiments;
FIG. 13 is a perspective cross-sectional view of a trim ring aligned for installation in the reflector housing of FIG. 11 in accordance with some exemplary embodiments. FIG.
FIG. 14 is a flowchart diagram illustrating a method for installing the LED module of FIG. 3 in an existing non-LED fixture, in accordance with certain example embodiments. FIG.
FIG. 15 is a perspective cross-sectional view of the LED module of FIG. 3 connected to an existing non-LED appliance socket via an Edison base adapter according to some example embodiments. FIG.
FIG. 16 is an elevation view of the Edison base adapter of FIG. 15 in accordance with certain example embodiments. FIG.
17 is a perspective top view of the optocoupler of the LED module of FIG. 3, in accordance with certain example embodiments.
18 is a perspective bottom view of the optocoupler of FIG. 17 in accordance with certain example embodiments. FIG.
19 is a perspective plan view of an optocoupler of the LED module of FIG. 3 in accordance with some other exemplary embodiments;
20 is an exaggerated view of a cross section of a reflector in accordance with certain exemplary embodiments.
Hereinafter, each embodiment according to the present invention will be described in detail with reference to the accompanying drawings. 1 is a can-shaped container for housing a hanger bar 105, a gypsum frame 110, a light source (“can” 115) of an embedded lighting fixture 100, and a splicer (in accordance with certain exemplary embodiments). 120 is a plan view. FIG. 2 is a cross-sectional view of the hanger bar 105, the gypsum frame 110, the can 115, and the splicer 120 of the recessed luminaire 100 of FIG. 1 in accordance with certain example embodiments. 1 and 2, the hanger bar 105 is configured to be installed between a support or beam (not shown) spaced from a ceiling (not shown). For example, the end of the hanger bar 105 may be secured to the vertical face of the support or beam by nailing or other means. In certain exemplary embodiments, the hanger bar 105 is incorporated herein by reference in its entirety and is hereby incorporated by reference in its entirety, entitled “Hanger Bars for Immersion Lighting Devices Using Integrated Nails”. Patent Application No. 10 / 090.654 As described substantially in the invention and US Patent Application No. 12 / 122,945, entitled "Hanger Bars for Immersion Lighting Devices Using Integrated Nails," hanger bar 105 may be a support or And an integrated fastener for attaching to the beam.
The distance between the support or the beam can vary widely to the extent contemplated. Therefore, in certain exemplary embodiments, the hanger bar 105 may have an adjustable length. Each hanger bar 105 includes two inter-fitting members 105a and 105b that are configured to slide in elevation to provide the desired length of the hanger bar 105. One of ordinary skill in the art having the benefit of this disclosure will recognize that many other suitable means exist to provide a hanger bar 105 having an adjustable length. For example, in some other exemplary embodiments, the one described in the invention US Pat. No. 6,105,918, which is incorporated herein in its entirety and is fully disclosed, is a single piece adjustable hanger bar for a lighting fixture. The hanger bars described above may be used in the luminaire 100 of FIG.
The gypsum frame 110 extends between the hanger bars 105 and includes a generally rectangular, flat plate 110a with an upturned edge 110b. For example, the flat plate 110a lies on the upper surface of the ceiling. The adapter 120 is installed on the top surface 110aa of the flat plate 110a. The adapter 120 has insulated wiring terminals for connecting external wiring (not shown) to a can 115 of the luminaire 100 or an LED driver (not shown) disposed elsewhere in the luminaire 100. ) And knock-outs are box-shaped metal containers typically.
In certain exemplary embodiments, the gypsum frame 110 generally includes a circular shaped opening 110c sized to receive at least a portion of the can 115 therethrough. Can 115 typically includes a substantially dome-shaped member configured to receive an LED module (not shown) that includes at least one LED light source (not shown). Opening 110c provides an illumination passage for the LED light source. Those of ordinary skill in the art having the benefit of this disclosure may, in certain, alternative embodiments, that the opening 110c may have another, non-circular shape corresponding to the outer profile of the can 115. Will recognize that.
3-8 illustrate an exemplary LED module 300 of the recessed luminaire 100 of FIG. 1. The exemplary LED module 300 may be configured for installation in the can 115 of the luminaire 100 of FIG. 1. The LED module 300 may include an LED package 305 installed in the heat sink 310. The LED package 305 may be installed directly on the heat sink 310 or with one or more other components installed between the LED package 305 and the heat sink 310.
The LED package 305 includes one or more LEDs installed on the common substrate 306. Substrate 306 includes one or more sheets of ceramic, metal, laminate, circuit board, mylar, or other material. Each LED includes a chip of semiconductor material that is treated to create a positive-negative junction. When the LED package 305 is electrically coupled with a power source such as driver 315, current flows from the positive side to the negative side at each junction, so that a charge carrier Causing energy to be emitted in the form of non-interfering light.
The wavelength or color of the emitted light depends on the material used to make the LED package 305. For example, blue or ultraviolet LEDs may include gallium nitride (GaN) or indium gallium nitride (InGaN), and red LEDs may represent aluminum gallium arsenide (AlGaAs). The green LED may include aluminum gallium phosphide (AlGaP). Each LED in the LED package 305 may produce the same or unique color of light. For example, the LED package 305 may include one or more non-white LEDs, such as red, yellow, amber, or blue LEDs, to adjust the color temperature output of the light emitted from the instrument 100. It may include one or more white LEDs. Yellow or multi-chromatic phosphors can be used in blue or ultraviolet LEDs to produce blue or red-shifted light that essentially matches blackbody radiation, or blue Or cover the ultraviolet LED. The emitted light is close to or the same as a "white" incandescent light for a human observer. In certain exemplary embodiments, the emitted light includes substantially white light that appears slightly blue, green, red, yellow, orange, or some other color or combination of colors. In certain exemplary embodiments, the light emitted from the LEDs in the LED package 305 has a color temperature between 2500K (Kelvin) and 5000K.
In certain exemplary embodiments, optically transmitted or unobstructed material (not shown) encapsulates at least a portion of LED package 305 and / or each LED therein. For example, encapsulated material provides environmental protection while transmitting light from the LEDs. For example, the encapsulated material may be conformal coating, silicone gel, cured / curable polymer, adhesive, or any other known to those of ordinary skill in the art having the benefit of this disclosure. Materials may be included. In certain exemplary embodiments, the phosphor is dispersed or coated over the encapsulated material to produce white light. In certain exemplary embodiments, the white light has a color temperature between 2500K and 5000K.
In certain exemplary embodiments, the LED package 305 has a lumen output from 1 lumen to 5000 lumens in an area having 2 inches or less in diameter or in an area having 2 inches or less in width and 2 inches or less in length. It includes an array of one or more LEDs collectively configured to make a. In certain exemplary embodiments, the LED package 305 is a CL-L220 package, a CL-L230 package, a CL-L240 package, a CL-L102 package, or a CL manufactured by Citizen Electronics Co., Ltd. -L190 package. By using a single, relatively compact LED package 305, the LED module 300 produces lumen output that is equivalent to various lamp types, such as incandescent lamps, in a small volume source in the instrument. It has one light source. Although shown in FIGS. 7 and 8 to include LEDs arranged in a substantially square structure, one of ordinary skill in the art having the benefit of this disclosure will appreciate that the LEDs may be arranged in any structure. will be. For example, the LEDs may be arranged in a circular or rectangular structure in some other exemplary embodiments.
The LEDs in the LED package 305 may include one or more solder joints, plugs, epoxy or bonding lines, and / or other means for installing electrical / optical devices on the surface. Are attached to the substrate 306. Similarly, substrate 306 may have a lower surface 310a of heat sink 310 by one or more solder joints, plugs, epoxy or bond lines, and / or other means for installing electrical / optical devices in the surface. Is installed on. For example, the substrate 306 may be installed in the heat sink 310 by a two-part arctic silver epoxy.
Substrate 306 is electrically connected to support circuitry (not shown) and / or driver 315 to supply electrical power and control to LED package 305. For example, one or more wires (not shown) may couple opposite ends of the substrate 306 to the driver 315, thereby completing the circuit between the driver 315, the substrate 306, and the LEDs. Let's do it. In certain exemplary embodiments, the driver 315 is configured to separately control one or more portions of the LEDs to adjust the light color or light intensity.
Because of the by-products of the conversion of electricity to light, LEDs generate a significant amount of heat that increases the operating temperature of the LED if allowed to accumulate. This can lead to reduced efficiency and premature failure of the LEDs. Heat sink 310 is configured to manage heat output by the LEDs in LED package 305. In particular, the heat sink 310 is configured to conduct heat away from the LEDs even when the luminaire 100 is installed in an insulated ceiling environment. Heat sink 310 is comprised of any material that is configured to conduct heat and / or convective heat, such as a die cast metal.
9 is a cross-sectional view of an exemplary heat sink 310. 10 illustrates a thermal scan of an exemplary heat sink 310 during operation. 3 to 10, the lower surface 310a of the heat sink 310 has a substantially round member 310b together with the protruding central member 310c in which the LED package 305 is installed. Include. In certain exemplary embodiments, the center member 310c has two notches that provide a passageway for wires (not shown) extending between the driver 315 and the end of the substrate 306. 310d). In certain exemplary embodiments, three or more notches 310d may be included to provide passageways for the wires. In some other exemplary embodiments, the bottom surface 310a may include only one, relatively flat member, without any protruding center member 310c.
The fins 311 extend substantially vertically from the bottom surface 310a of the heat sink 310 toward the top end 310e of the heat sink 310. Fins 311 are spaced around the substantially central core 905 of heat sink 310. The core 905 is a member that is at least partially composed of a conductive material. Core 905 may have any of a variety of different shapes and structures. For example, core 905 may be a solid or non-solid member having a substantially cylindrical or other shape. Each pin 311 includes a curved radiating portion 311a and a substantially straight portion 311b. In certain exemplary embodiments, the radiating portions 311a are not symmetrical to each other. Each straight portion 311b extends substantially along the tangent of the radiating portion 311a from the corresponding radiating portion 311a toward the outer edge 310f of the heat sink 310. The length and radius of the radiating portion 311a and the length of the straight portion 311b depend on the size of the heat sink 310, the size of the LED module 300, and the heat dissipation requirements of the LED module 300. Can change on the basis of By way of example only, one exemplary embodiment of heatsink 310 has a radiating portion 311a having a radius of 1.25 inches and a length of 2 inches and a straight portion 311b having a length of 1 inch. The pins 311 may be included. In some other exemplary embodiments, some or all of the pins 311 may not include both the radiating portion 311a and the straight portion 311b. For example, the pins 311 may be entirely straight or entirely radial. In some additional exemplary embodiments, the bottom surface 310a of the heat sink 310 may not include a circular member 310b. In this embodiment, the LED package 305 is coupled directly to the core 905 rather than the circular member 310b.
As shown in FIG. 10, the heat sink 310 passes from the LED package 305 through the bottom surface 310a of the heat sink and extends to the fins 311 via the core 905. Configured to dissipate heat from the LED package 305 along a heat-transfer path. The fins 311 receive the conducted heat and transfer the conducted heat to the surrounding environment (typically the air in the can 115 of the luminaire 100) via convection. For example, heat generated from the LEDs corresponds from the LED package 305 to the core 905, from the core 905 to the radiating portion 311a of the pins 311, and from the radiating portion 311a of the pins 311. Up to a straight portion 311b, and along a path from the corresponding straight portion 311b to the surrounding environment. Heat may also be transferred directly by convection from the core 905 and / or fins 311 to one or more gaps between the fins 311.
In certain exemplary embodiments, the reflector housing 320 is coupled to the bottom surface 310a of the heat sink 310. Those skilled in the art will appreciate that in some exemplary embodiments, the reflector housing 320 may be combined with the luminaire 100 or other portions of the LED module 300. 11 shows an example reflector housing 320. 3-8 and 11, the reflector housing 320 includes a circular member 320a having an upper end 320b and a lower end 320c. Each end 320b and 320c includes openings 320ba and 320ca, respectively. Channel 320d extends through reflector housing 320 and connects openings 320ba and 320ca.
Upper end 320b includes a substantially circular upper surface 320bb disposed around at least a portion of channel 320d. Top surface 320bb includes one or more holes 320bc capable of receiving a fixture that secures reflector housing 320 to heatsink 310. Each anchor may include screws, nails, fasteners, clips, pins, or other anchors known to those of ordinary skill in the art having the benefit of this disclosure. In some other exemplary embodiments, the reflector housing 320 does not include the holes 320bc. In the present embodiment, the reflector housing 320 is integrally formed with the heat sink 310 or via heat sinks through means that do not require holes for fixing, such as glue or adhesive. Fixed at 310). In certain exemplary embodiments, the reflector housing 320 is configured to function as a second heat sink for conducting heat away from the LEDs. For example, the reflector housing 320 may help heat dissipation by convection the cooled air through one or more ridges from the bottom of the luminaire 100 toward the LED package 305.
The reflector housing 320 is configured to receive a reflector 1205 (FIG. 12) made of a material for reflecting, refracting, transmitting, or diffusing light emitted by the LED package 305. The word "reflector" is used herein in reference to any material configured to function as a lens in a luminaire that includes any material configured for reflecting, refracting, transmitting, or diffusing light. 12 is a perspective cross-sectional view of an example reflector 1205 inserted into channel 320d of reflector housing 320, in accordance with certain example embodiments. 3-8, 11, and 12, when reflector 1205 is installed in reflector housing 320, outer side surface 1205a of reflector 1205 is a corresponding inner surface of reflector housing 320. Disposed along 320e. In certain exemplary embodiments, the upper end 1205b of the reflector 1205 abuts the edge surface 330a of the optical coupler 330 installed at the lower edge 310a of the upper surface 320bb. Reflector 1205 is described in more detail below with reference to FIG. 20. The optocoupler 330 guides the light emitted by the LED package 305 to allow structural tolerances between the reflector 1205 and the LED package 305 to cover the electrical connection to the substrate 306. And a member configured to. The material applied to the optical coupler 330 and / or the optical coupler 330 may optionally be a refracting, reflecting, transmitting, specular, half mirror, or diffusing material. The optocoupler 330 is described in more detail below with reference to FIGS. 17-19.
The lower end 320c of the reflector housing 320 forms a substantially annular ring around the channel 320d and includes a lower surface 320ca extending away from the channel 320d. Surface 320ca includes slots 320cb, each configured to receive a corresponding tap 1305a from swag 1305 (see FIG. 13). 13 shows a portion of decorative ring 1305 aligned for installation with reflector housing 320. 3-8 and 11-13, each of the closest slots 320cb and surface 320ca enables the installation of the decorative ring 1305 on the reflector housing 320 via twisting steering. Ramped surface (320cc). More specifically, swag 1305 corresponds with each tab 1305a such that each tab 1305a moves its corresponding inclined surface 320cc to a higher position along the lower surface 320ca. Can be installed on the reflector housing 320 by aligning the slots 320cb to which the slots 320cb are aligned and by grabbing the decorative ring 1305 associated with the reflector housing 320. Each sloped surface 320cc has a height that rises slowly along the perimeter of the housing 320.
Decorative ring 1305 provides an artistically satisfying frame for luminaire 100. Decorative ring 1305 can have any of a number of colors, shapes, backgrounds, and configurations. For example, ornament 1305 may be white, black, metallic or other color, and may also have a thin profile, thick profile, or intermediate profile. Decorative ring 1305 holds reflector 1205 in reflector housing 320. In particular, when reflector 1205 and collar 1305 are installed within luminaire 100, at least a portion of the lower end 1205b of reflector 1205 is on top surface 1305b of collar 1305. Lies.
3-8, bracket 325 couples torsion springs 340 with the opposite side surface 310f of heat sink 310. The bracket 325 extends from the upper member 325a and the upper member 325a substantially perpendicularly toward the lower end 320c of the reflector housing 320. It includes. The bracket 325 is coupled to the heat sink 310 via one or more screws, nails, fasteners, clips, pins, or other fasteners known to those of ordinary skill in the art having the benefit of this disclosure.
Each side member 325b includes an opening 325c configured to receive another fixing device or rivet 325d for installing one of the torsion springs 340 to the heat sink 310. Each torsion spring 340 includes opposing bracket ends 340a that are inserted into corresponding slots (not shown) in the can 115 of the luminaire 100. To install the LED module 300 in the can 115, the bracket ends 340a are pressed against each other, the LED module 300 slides into the can 115, and the bracket end 340a is aligned with the slots. And thus the bracket end 340a is ejected as it enters the slots.
Mounting bracket 335 may be provided by means of top member 325a and / or via screws, nails, fasteners, clips, pins, or other fasteners known to those of ordinary skill in the art having the benefit of this disclosure. Or is coupled to the upper end of the heat sink 310. Mounting bracket 335 extends substantially vertically from protruding side members extending substantially vertically from upper member 335a and upper member 335a toward lower end 320c of reflector housing 320. 335b). In certain exemplary embodiments, the mounting bracket 335 has a profile that substantially corresponds to the inner profile of the can 115. This profile allows the mounting bracket 335 to create a splicer (or “j-box”) in the can 115 when the LED module 300 is installed in the luminaire 100. In particular, as described in more detail below with reference to FIG. 14, an electrical junction between the luminaire 100 and an electrical system (not shown) at the installation site may result in a can 115 when the LED module 300 is installed. ) May be disposed in a substantially enclosed space between the top (bonder) and mounting bracket 335.
In certain exemplary embodiments, the driver 315 and Edison base socket bracket 345 are installed on the top surface 350c of the top member 350a of the mounting bracket 335. Optionally, the driver 315 may be disposed at another location within the luminaire 100 or may be disposed away from the luminaire 100. As noted above, the driver 315 supplies electrical power and controls the LED package 305. As described in more detail below with reference to FIGS. 14-16, the Edison base socket bracket 345 is an Edison base adapter 1520 of a spherical installation of an LED module 300 in an existing, non-LED fixture (FIG. 15-16) and the Edison base socket 1505 configured to receive the bracket. This bracket 345 allows the LED module 300 to be installed in both new structures and older applications. In certain exemplary embodiments, the bracket 345 may be removed for installation of a new structure.
14 is a flow chart diagram illustrating a method 1400 for installing an LED module 300 in an existing non-LED fixture, in accordance with certain example embodiments. 15 and 16 are diagrams of an exemplary Edison base adapter 1520 and an LED module 300 connected to an Edison base socket 1505 of a non-LED instrument, which is via an Edison base adapter 1520. Exemplary method 1400 is described, in another embodiment of the present invention, certain steps may be performed in a different order, parallel to each other, or omitted entirely, and / or any additional steps may be seen. It can be carried out without departing from the spirit and scope of the invention. The method 1400 is described below with reference to FIGS. 3-8 and 14-16.
In step 1410, the study found that the installation of an LED module 300 in an existing appliance was subject to the California Regular Regulations entitled “Energy Efficiency Standards for Residential and Non-Residential Buildings” on October 1, 2005. It was executed to define if it conforms to. The installation specified in Title 24 requires the removal of the Edison base socket 1505 in the existing instrument. Installations that do not require compliance with Title 24 do not require removal of the Edison base socket 1505.
If the installation does not comply with the provisions in Title 24, then having "no" follows step 1415. At step 1415, the Edison base socket 1505 from the existing instrument is disconnected. For example, a person can detach the Edison base socket 1505 by removing the socket 1505 from the plate of an existing instrument. At step 1420, the person screws the Edison base adapter 1520 into the Edison base socket 1505. The Edison base adapter 1520 may be configured as an LED module via a socket 1505 of an existing instrument and / or via wires connected to the socket 1505, as described below with reference to steps 1455-1460. The driver 315 of 300 is electrically coupled to a power source of an existing instrument.
At step 1425, a person pushes the wiring 1530 from the LED module 300 to the Edison base adapter 1520. For example, a person can push one or more quick-connects or push connectors 350 from driver 315 to Edison base adapter 1520. Optionally, a person can connect wires without a connector from the driver to the Edison base adapter 1520. In step 1430, the person installs the Edison base adapter 1520 and the socket 1505 to the mounting bracket 335 on the LED module 300. For example, a person may tighten, slide, twist, and / or add Edison base adapter 1520 and socket 1505 to Edison base socket bracket 345 on mounting bracket 335. ) And socket 1505 can be used with one or more screws, nails, fasteners, clips, pins, or other fasteners to install Edison base socket bracket 345 and / or mounting bracket 345.
In step 1435, the person compresses the torsion spring 340 such that the bracket ends 340a of each torsion spring 340 move towards each other. The person slides the LED module 300 into the can 115 of an existing luminaire, aligns the bracket ends 340a with the slots in the can 115, and in step 1440, the bracket ends 340a. ) Detach bracket ends 340a to install in can 115. At step 1445, the person turns any exposed wires (not shown) to the existing instrument and pushes the LED module 300 flush to the ceiling surface.
Returning to step 1410, if the installation is in accordance with title 24, follow step 1450 with "yes", and in step 1450, the person removes the Edison base socket 1505 from the existing instrument. Cut the wires in the existing instrument to remove the containing Edison base. At step 1455, the person cuts the wires 1520a on the Edison base adapter 1520 to remove the Edison screw-in plug 1520b on the adapter 1520. A person connects wires 1520a from Edison base adapter 1520 to wires of an existing instrument (not shown), and in step 1460, wire 1530 from LED module 300 to adapter 1520. ) Into the connector 1520c. These connections complete the electrical circuit between the power source at the installation site, the Edison base adapter 1520, and the LED module 300, without the use of the Edison base socket 1505. In step 1465, the person installs the Edison base adapter 1520 in the mounting bracket 335 on the LED module 300 substantially as described below with respect to step 1430.
As noted above, the mounting bracket 335 has a profile that substantially corresponds to the interior profile of the can 115. This profile allows the mounting bracket 335 to fit within the can 115 when the LED module 300 is installed in the luminaire 100 by substantially enclosing the space between the mounting bracket 335 and the top of the can 115. Allow to create a adapter (or "j-box"). In particular, depending on the wires 1530, the driver 315, the Edison base adapter 1520, and whether the installation follows Title 24, the electrical junctions between the sockets may include a mounting bracket (when the LED module 300 is installed). 335 and the top of the can 115 may be disposed in a substantially enclosed space.
17 and 18 are diagrams of an optocoupler 330 of an LED module 300 in accordance with certain example embodiments. Referring to FIGS. 17 and 18, the optocoupler 330 is a substrate to allow structural tolerance between the reflectors 1205 and the LEDs in the LED package 305, and to guide the light emitted by the LEDs. 306 includes a refracting, reflecting, transmitting, mirroring, half mirroring, or diffusing member that covers the electrical connection.
In certain exemplary embodiments, the optocoupler 330 includes a center member 330b having an upper surface 330ba and a lower surface 330bb. Each surface 330ba and 330bb includes openings 330ca and 330cb. The openings 330ca and 330cb are parallel to each other and substantially centered in the center member 330b. The side member 330bc defines a channel 330d extending through the center member 330b and connects the openings 330ca and 330cb. In certain exemplary embodiments, the side member 330bc extends in a direction substantially perpendicular from the top surface 330ba. Alternatively, the side member 330bc may be inclined in a circular, semi-circular, or pyramid shape.
When the optocoupler 330 is installed in the LED module 300, the openings 330ca and 330cb are aligned with the LEDs of the LED package 305 so that all of the LEDs can be seen through the channel 330d. . In certain exemplary embodiments, the structure of the side member 330bc and / or one or both of the openings 330ca and 330cb substantially correspond to the structure of the LEDs. For example, if the LEDs are arranged in a substantially square structure, as shown in FIGS. 7 and 8, the side member 330bc and the openings 330ca and 330cb may have a substantially square structure, as shown in FIGS. 17 and 18. It can have Similarly, if the LEDs are arranged in a substantially circular structure, the side member 330bc and the openings 330ca and 330cb may have a substantially circular structure, as shown in FIGS. 17 and 18. In certain exemplary embodiments, optical coupler 330d is configured to guide light emitted by LED package 305. For example, emitted light may be transmitted through channel 330d and reflected, refracted, diffused, and / or by side member 330bc and / or lower surface 330bb of core member 330b. Is sent.
The side wall member 330e extends substantially perpendicularly from the top surface 330ba of the optical coupler 330. The sidewall member 330e connects the edge member 330f including the edge surface 330a of the optical coupler 330 to the center member 330b. The sidewall member 330e has a substantially circular structure that defines a ring around the core member 330b. The edge member 330f extends substantially vertically from the upper end 330ea of the side wall member 330e. The edge member 330f is substantially parallel to the center member 330b.
Sidewall member 330e and central portion 330b define an interior region 330g of optical coupler 330. Interior region 330g includes a space around opening 330ca configured to house an electrical connection to substrate 306. In particular, when the optocoupler 330 is installed in an LED module, the optocoupler 330 covers electrical connections on the substrate 306 by housing at least some of the connections in the interior region 330g. Thus, electrical connections are not shown when the LED module 300 is installed.
19 is a perspective top view of an optocoupler 1900 of an LED module 300 in accordance with some other exemplary embodiments. The optical coupler 1900 is coupled with the optical coupler 330 except that the optical coupler 1900 has a narrower core member 1900b and a wider edge member 1900f having a substantially conical or truncated cone structure. Are substantially similar. In particular, the lower surface 1900ba of the core member 1900b has a larger radius than the upper surface 1900bb of the core member 1900b. Each surface 1900ba and 1900bb includes openings 1900ca and 1900cb, respectively, connected to a channel 1900d extending through the core 1900b. Lower surface 1900ba has a substantially inclined profile that is curved outwardly from channel 1900d, defining a substantially conical, or truncated conical structure of the core material. In certain exemplary embodiments, the structure of the core member 1900b may reduce unwanted shadows from the optical coupler 1900. In particular, the core member 1900b does not include sharply inclined edges that can block light from the LED package 305.
Although FIGS. 17-18 and 19 illustrate core members 330b and 1900b having square and conical structures, respectively, those having ordinary skill in the art having the benefit of the present disclosure have core members 330b and 1900b. It will be appreciated that) may include any structure. For example, in some other exemplary embodiments, the optocoupler 300 or 1900 may include a core material incorporating a hemispherical or cylindrical structure.
20 is an exaggerated view of the cross-sectional profile of reflector 1205 in accordance with certain exemplary embodiments. The profile includes a first region 2005 at the top of the reflector 1205 and a second region 2010 at the bottom of the reflector 1205. The second area 2010 is wider than the first area. Regions 2005 and 2010 define a curve that resembles the shape of the side of the species.
As is well known to those of ordinary skill in the art having the benefit of this disclosure, reflectors in the downlight need to generate a unique light pattern that satisfies the eye, taking into account the visual perception of the human being. The most visually appealing downlights are designed such that the reflected image of the source light begins at the top of the reflector and points its direction downward as the viewer walks toward the instrument. This effect is sometimes associated with "topdown flashes." It is generally accepted that people have a gentler rather than steep slope and prefer more or less uniform light dispersion.
Typical reflector designs for downlights with large light sources, such as incandescent or compact fluorescent lamps, are fairly straightforward. A parabolic or nearly parabolic section generated from edge rays or repairs from a light source will produce a top-down flash with the widest possible distribution with given perceptual stresses. With respect to light patterns on near surfaces such as floors, the light patterns are generally gentle due to the fact that large light sources are reflected in large angular zones.
Designing reflectors for small light sources such as LEDs is not straightforward. In particular, it is typically difficult to produce a gentle light pattern when using an LED light source. Reflectors for small light source downlights, such as LED downlights 100, need to be wider than typical with downlights with large light sources. The light reflector, the nearest nadir, or the point directly under the luminaire is the most critical area for small light source downlights. If the transition between the reflector image and the bare bare source is steep in the downlight, a bright or dark ring will be seen in the light pattern.
To compensate, the reflector 1205 of the present invention is radically opened near this region to better mix the transition region. In particular, the bell-shape of the side of the reflector 1205 defines at least one gentle curve with a point of refraction that is substantially centered. The upper portion of the curve (first region 2005) reflects light in a more concentrated manner to achieve the desired light at a higher angle. For example, the upper portion of the curve may reflect light near the top of the reflector 1205 starting at about 50 °. The lower portion of the curve (second region 2010) is wider than the upper portion, and otherwise blends the light into a tight visible line in the light pattern, pulling the light over a large angular region (down to 0 °). Reflect. This shape is also shown to satisfy the requirements of the top down flash while creating a smooth, mixed light pattern in the LED downlight fixture 100. Despite being particularly useful for LED downlights, one of ordinary skill in the art, having the benefit of the present disclosure, recognizes that the design of the reflector 1205 may be used in any form of fixture, whether or not based on LEDs. something to do.
The exact shape of the reflector may depend on several factors including the size and shape of the light source, the size and shape of the aperture, and the distribution of the desired photometer. In certain exemplary embodiments, the shape of the reflector 1205 may be defined by defining several vertices and pulling a spline through the vertices, creating a smooth, continuous curve extending there through the vertices. have. Although it is possible to approximate this curve to the equation, the equation will change depending on the given set of variables. In one exemplary reflector 1205, the vertices of the spline are determined by error methodology and testing with optical analysis software to achieve the desired photometric distribution. At the start of the design, the variable set includes the diameter of the aperture (5 inches), the viewing angle (50 °) where the observer first sees the interior of the light source or optical coupler through the aperture as measured from the shader, and directly below the instrument, from the shader. The cutoff angle (50 °) of the light reflected from the reflector as measured.
Although specific embodiments of the present invention have been described in detail above, it is for the purpose of illustration only. Therefore, it should be recognized that many aspects of the present invention are described as described above only by the methods of the embodiments and are not intended as necessary or essential elements of the present invention, unless expressly stated otherwise. In addition to those described above, various modifications of the indicated aspects of the exemplary embodiments and equivalent steps corresponding to the indicated aspects of the exemplary embodiments may be made without departing from the spirit and scope of the invention as defined in the following claims. It may be made by one of ordinary skill in the art having the benefit and the scope of the claims should be accorded the widest interpretation, including such as modifications and equivalent structures.
An LED package including a plurality of light emitting diodes (LEDs) installed on a common substrate;
Heat sinks coupled with LED packages; And
Means for installing the LED package and heatsink in the recessed luminaire;
The downlight module, wherein the LED package substantially generates all of the light emitted by the embedded luminaire.
The LEDs in the LED package are downlight modules, wherein any one of (a) a diameter of 2 inches or less, and (b) a length of 2 inches or less and a width of 2 inches or less.
And a heat sink comprising at least one fin.
Each pin comprises a curved radiating portion and a corresponding straight portion.
Wherein each pin transfers heat from the LED package along a path from the LED package to the radiating portion of the fin, from the radiating portion to the corresponding straight portion, and from the straight portion to the surrounding environment.
At least a portion of heat from the LED package is dissipated between at least a portion of the pins.
And the path from the LED package to the radiating portion of the fin comprises a core member substantially disposed between the LED package and the radiating portion from the LED package, and a path from the core member to the radiating portion.
The heatsink and LED package are installed in a substantially can-shaped housing of the recessed luminaire,
The downlight module further comprises a member coupled to the heatsink and creating a junction box in the can when installed in the can as having a profile substantially corresponding to the inner profile of the can. Light module.
The heatsink comprises a first end and a second end opposite the first end,
The LED downlight module is coupled to the first end, the member is coupled to the second end.
The member includes a first side facing the heat sink and a second side opposite the first side,
And a bracket coupled to the second side of the member and containing an Edison base adapter and an Edison base socket.
And a member positioned around at least a portion of the LED package, covering the at least one electrical connection to the substrate and configured to direct light emitted by the LED package.
The member comprises a segment defining a channel through which light emitted by the LED package is guided.
And the segment has a substantially rectangular shape.
And the segment has a substantially frusto-conical shape.
And a reflector substantially disposed within the housing, the upper end of the reflector adjacent the lower edge surface of the member.
Further comprising a reflector at least partially disposed around the LED package,
And wherein the cross-sectional profile of the side of the reflector comprises a substantially gentle curve having ends disposed on opposite sides of the inflection point.
Downlight module, characterized in that the cross-sectional profile is substantially similar to the cross-sectional profile of the side of the bell.
Downlight module, characterized in that the LED package emits light having a color temperature between about 2500K (Kelvin) and about 5000K.
Downlight module, characterized in that the LED package comprises at least one white LED and at least one non-white LED.
Electrically coupling an Edison base adapter to an existing embedded luminaire and LED module; And
And installing the LED module in the recessed housing of the existing recessed light fixture.
The member of the LED module has a profile that substantially corresponds to the inner profile of the embedded housing, so that when the LED module is installed in the can, the member creates a joint between the top of the embedded housing and the member, the adapter housing the Edison base adapter. Method for installing an LED downlight module, characterized in that.
Coupling the Edison base adapter to the member.
The existing buried luminaire is a method for installing an LED downlight module, characterized in that the incandescent luminaire.
The step of electrically coupling the Edison base adapter,
Removing the Edison base from the existing buried luminaire by cutting at least one wire from the existing buried luminaire;
Removing the Edison screw-in plug from the Edison base adapter by cutting at least one wire from the Edison base adapter;
Connecting the wires cut together from the Edison base adapter and the existing embedded luminaire; And
Removing the socket from the existing embedded luminaire;
Screwing the Edison base adapter into the socket;
A substantially can-shaped buried housing; And
Including a LED downlight module installed in the housing;
The LED module includes a single LED package that generates substantially all of the light emitted by the embedded luminaire, wherein the single LED package includes a plurality of LEDs installed on a common substrate.
The LED module further has a member comprising a profile substantially corresponding to the inner profile of the housing, such that the member and the upper portion of the housing define a joint in the housing between the upper portion of the housing and one side of the member. To buy lighting fixtures.
An embedded luminaire, wherein the inner profile is substantially circular and the member has a substantially circular plate.
The adapter is a recessed luminaire, characterized in that for housing the wiring from the LED module.
The LED module further comprises a heat sink coupled to the LED package, the heat sink comprising at least one fin, each fin comprising a curved radiating portion and a corresponding straight portion,
Heat from the LED package is transmitted along the path from the LED package to the radiating portion of the fins, from the radiating portion to the corresponding straight portion, and from the straight portion to the surrounding environment.
A member positioned around at least a portion of the substrate and covering at least one electrical connection to the substrate;
A reflector housing comprising a first opening, a second opening, and a channel extending between the first and second openings, wherein light is transmitted through the channel and the first opening is substantially disposed around at least a portion of the LED package. ; And
And a reflector disposed substantially within the reflector housing, the reflector of which the upper end is adjacent to the lower edge surface of the member.
The LED module is coupled to the lower end of the reflector housing, further comprising a trim member disposed along the lower edge of the second opening.
An embedded luminaire, wherein the LED package is substantially centered along a horizontal plane in the housing.
The LED package is a recessed luminaire, characterized in that for emitting white light.
The LED package emits light having a color temperature between about 2500K and about 5000K.
The recessed luminaire further comprising a first drive circuit configured to supply a first drive current to at least the first portion of the LEDs.
Adjustable to adjust the level of the first drive current to the first portion of the LEDs such that the first drive circuit changes the brightness of the LEDs,
Embedded lighting device, wherein the first portion of the LEDs comprises white LEDs.
And a second drive circuit configured to supply a second drive current to at least a second portion of the LEDs, the second portion of the LEDs including at least one non-white LED.
An embedded luminaire, wherein the non-white LED is a red LED.
The non-white LED is a luminaire, characterized in that the blue (LED).
The non-white LED is an embedded luminaire, characterized in that it is an amber LED.
The non-white LED is a luminaire, characterized in that the green (LED).
The non-white LED is a recessed luminaire, characterized in that it is a yellow LED.
KR20100059989A true KR20100059989A (en) 2010-06-04
KR101533128B1 KR101533128B1 (en) 2015-07-01