TW201335538A - Non-glare reflective LED lighting apparatus with heat sink mounting - Google Patents

Abstract

A lighting apparatus contains a main housing; a reflector disposed within the main housing, and having a front side and a rear side; a heat conducting body comprising at least two heat pipes, wherein a first portion of the at least two heat pipes are parallel to a central axis of the lighting apparatus on the front side of the reflector, and a second portion of each of the at least two heat pipes is in the rear side of the reflector and is thermally coupled to the main housing; a heat conducting head located on the front side of the reflector, and is thermally coupled to the heat conducting body; at least two light-emitting diodes (''LEDs'') thermally coupled to the heat conducting body, and being positioned to face the front side of the reflector so that light emitted from the LEDs are directed to said front side.

Description

Non-glare reflective type light emitting diode illuminating device with radiator mounting member Cross-references to related applications

An application for an invention of the priority of US Serial No. 13/401,724, filed on Feb. 21, 2012, filed on May 21, 2009. Part of the continuous application of No. 12/470, 332, in accordance with 35 USC § 119(e), requests US Provisional Patent Application No. 61/055,858, filed on May 23, 2008, and US pending on May 30, 2008 Priority is claimed in U.S. Patent Application Serial No. 61/057,289, the entire disclosure of which is incorporated herein by reference.

Throughout this application, reference is made to several patents and references. The disclosures of these patents and references are incorporated herein by reference.

Field of invention

The present invention relates to electroluminescent devices and systems and, more particularly, to at least one single-wafer or multi-wafer light-emitting diode ("LED") for use in most back-reflecting collection optics of light-emitting diodes, And improving the heat sinking efficiency of the light-emitting diode while minimizing light blocking and glare to improve the heat sink mounting device.

Background of the invention

For many years, traditional incandescent or fluorescent lighting devices have been used to solve their indoor lighting problems. However, these illuminating devices have most of the disadvantages. For example, the popular AR111 halogen device has the following disadvantages - very high power consumption It is inefficient because of the metal shield placed on the line of sight of the halogen bulb, and its limited effectiveness in preventing glare from the halogen bulb.

Recently, most light-emitting diode lighting devices have been designed to replace the AR111 halogen device, as well as other conventional incandescent or fluorescent lighting devices. Generally, in these light-emitting diode light-emitting devices, the light-emitting diode light sources are disposed at the center of a reflector and their light is radiated outward from the reflector. In addition, there are many light-emitting diode light-emitting devices such as PAR38, which use a plurality of light-emitting diodes and their light is radiated outward by one or more reflectors. These configurations fail to achieve a narrow beam angle, and because there is no barrier separating the viewer from the light source, this can cause considerable glare. Moreover, these configurations dissipate heat inefficiently; therefore, it is practically impossible to utilize high power light-emitting diodes in these configurations.

In order to solve these problems, another light-emitting diode light-emitting device has been disclosed which uses a mirror or a reflective surface to reflect light back toward the light-emitting diode source. See, for example, U.S. Patent No. 6,976,769 to McCullough et al., entitled "Light-Emitting Diode Reflector Assembly Having a Heat Pipe," Jacobson et al. "Back-Reflecting LED Light Source" is US Patent No. 7,246,921, and Magna International is entitled "Thermal Management System for Solid State Automotive Lighting". PCT International Gazette No. WO 2006/033998.

Summary of invention

From the above, it is necessary to further improve the technique. In detail, there is a need for a light-emitting diode light-emitting device that eliminates or reduces glare and has the effect of increasing the dissipation efficiency of heat generated by the light-emitting diode (eg, a high-power light-emitting diode) while reducing the light path. An improved compact thermally conductive assembly that hinders and the number of components required in the assembly.

According to an aspect of the present invention, a light-emitting device includes: a main casing; a reflector disposed in the main casing, the reflector having a front side and a rear side; and a heat conductor including at least two heat pipes The first portion of the at least two heat pipes is positioned parallel to a central axis of the light-emitting device and on the front side of the reflector, and the second portion of each of the heat pipes of the at least two heat pipes In a rear side of the reflector and thermally coupled to the main housing; a heat conducting head disposed on a front side of the reflector and thermally coupled to the heat conductor; at least two light emitting diodes, Thermally coupled to the heat conducting head and the heat conductor, and the at least two light emitting diode systems are positioned to face the front side of the reflector such that light emitted by the at least two light emitting diodes is directed to the reflector side.

According to another aspect of the invention, the at least two heat pipes are substantially J-shaped, L-shaped, or a combination thereof.

According to another aspect of the present invention, the heat conductor provides a passage for heat to flow from the at least two light emitting diodes to the main casing.

According to another aspect of the invention, the reflector has at least two central optical axes.

According to another aspect of the present invention, one end of the heat conductor is the same as The two light emitting diodes are thermally coupled, and the other end of the heat conductor is thermally coupled to the main housing.

According to another aspect of the invention, the reflector is in a symmetrical or asymmetrical shape.

According to another aspect of the invention, the main housing is substantially frustoconical, cylindrical or cubic in shape and is constructed of a thermally conductive material.

According to another aspect of the invention, the main housing includes one or more heat dissipation fins.

According to another aspect of the present invention, the light emitting device further includes a plastic housing coupled to the main housing; and a socket coupled to the plastic housing.

According to another aspect of the invention, the lamp holder is an E26 lamp holder, a GU10 lamp holder, an E27 lamp holder, or a GU24 lamp holder.

According to another aspect of the present invention, the light emitting device further includes the at least two light emitting diodes positioned within a range of 0 to 120 degrees with respect to a central axis of the light emitting device.

According to another aspect of the invention, the thermally conductive head has a triangular side profile or an irregular hexagonal side profile and has at least two mounting areas for the at least two light emitting diodes, respectively.

According to another aspect of the invention, the thermally conductive head is constructed of aluminum, copper, or a combination thereof.

According to another aspect of the present invention, the light emitting device further includes a printed circuit board (PCB) coupled to the at least two light emitting diodes and the heat conducting head.

According to another aspect of the present invention, the illuminating device comprises: a main housing having a substantially frustoconical shape; and a reflector disposed in the main housing The reflector has a front side, a rear side and at least two central optical axes; a heat conductor comprising at least two substantially J-shaped heat pipes, wherein the first part of the at least two substantially J-shaped heat pipes is rod-shaped and Provided on a front side of the reflector and coupled to a heat conducting head disposed at or near a central axis of the light emitting device, and the second portion of the at least two substantially J-shaped heat pipes is transmitted at or near the light emitting device One of the central axes is open through the reflector, and one of the at least two substantially J-shaped heat pipes is curved and at least a portion of the third portion is coupled to the main housing And at least two light emitting diodes thermally coupled to the heat conducting head and positioned to face the front side of the reflector at an oblique angle with respect to a central axis of the light emitting device such that the at least two light emitting diodes are emitted Light is directed to the front side of the reflector.

According to another aspect of the invention, the illumination device further includes an anti-glare cover coupled to the thermal head.

Simple illustration

The drawings are intended to be illustrative of the present invention, but it is understood that the invention is not limited to the precise forms shown in the drawings, wherein: FIG. 1 is in accordance with an aspect of the invention. A perspective view of a top side of the light-emitting device; a second view of the light-emitting device shown in FIG. 1; and a third view of the bottom side of the light-emitting device shown in FIG. X-ray" diagram; Figure 4 is a cross-section viewed from the top side of the illumination device shown in Figure 1. 3 is a cross-sectional perspective view of the light-emitting device shown in FIG. 1; FIG. 6 is a cross-sectional view of the light-emitting device shown in FIG. 1; and FIG. 7 is a conventional heat pipe; Cross-sectional view (from http://en.wikipedia.org/wiki/Image:Heat_Pipe_Mechanism.png); Figure 8 is a perspective view of a light-emitting device according to another aspect of the present invention; Figure 9 is from Figure 8. 3 is a perspective view of a light-emitting device shown in FIG. 8; and FIG. 11 is another perspective view of the light-emitting device shown in FIG. 8; 12 is an exploded perspective view of the light-emitting device shown in FIG. 8; FIG. 13 is an exploded cross-sectional view of the light-emitting device shown in FIG. 8; and FIG. 14 is a direct coupling of the light-emitting device according to an aspect of the present invention. A perspective view of a heat conductor (coated heat pipe) of one of the light emitting diodes; and FIG. 15 is a view of one of the light emitting diodes directly coupled thereto according to another aspect of the present invention; A perspective view of a heat conductor (uncoated heat pipe); Fig. 16 is a light emitting device according to another aspect of the present invention Fig. 17 is a side view of the light-emitting device shown in Fig. 16; Fig. 18 is a cross-sectional perspective view of the light-emitting device shown in Fig. 16; and Fig. 19 is the 16th The top edge of the illuminating device shown in the figure and a mounting device (Decomposed perspective view of a metal cladding layer, an S-shaped heat conductor, a mounting platform, a mounting plate, and a light-emitting diode); FIG. 20 is a top side of the light-emitting device shown in FIG. FIG. 21 is a perspective view of a top side of a light-emitting device according to another aspect of the present invention; and FIG. 22 is a top view of the light-emitting device shown in FIG. 21. 23 is an exploded cross-sectional view of the light-emitting device shown in FIG. 21; FIG. 24 is a cross-sectional view of the light-emitting device shown in FIG. 21; and FIG. 25 is a light-emitting view shown in FIG. Another cross-sectional view of the device; Fig. 26 is a cross-sectional view of the light-emitting device shown in Fig. 21; and Fig. 27 is a perspective view of the bottom side of the light-emitting device shown in Fig. 21; A perspective view of a light-emitting device according to another aspect of the present invention; FIG. 29 is a perspective view of the light-emitting device shown in FIG. 28; and FIG. 30 is a side view of the light-emitting device shown in FIG. Figure 31 is a cross-sectional perspective view of the light-emitting device shown in Figure 28.

Detailed description of the invention

As shown in Figures 1-6, and in accordance with one aspect of the present invention, a light-emitting device 1 has a reflector 4 coupled to a top edge 3, wherein the top edge 3 is coupled to a guide The hot body 2 is coupled. The heat conductor 2 comprises a heat pipe 8 covered by a cladding layer 9 and a mounting platform 5 disposed on one side of the heat conductor 2 facing the front side of the reflector 4. As shown in FIG. 3, a light-emitting diode 6 is connected to a metal core printed circuit board ("PCB") 7, and the printed circuit board 7 is coupled to the mounting platform 5. The mounting platform 5 is shaped in a manner (in this aspect of the invention, circular) such that it provides more non-glare protection of the LED than the prior art illumination device.

In this aspect of the invention, the light-emitting diode 6 is disposed above or near the central optical axis 300 of the reflector 4 and is positioned such that it is emitted by the light-emitting diode 6. The light is substantially or completely guided to the front side of the reflector 4; therefore, as shown in Fig. 6, the reflector 4 can be used to collect and collimate the light emitted by the light-emitting diode 6, and reflect the light The direct light is remote from the reflector 4 and passes through the light-emitting diode 6 and the heat conductor 2. Due to its flat, narrow configuration, the thermal conductor 2 blocks very little of the reflected collimated light from the reflector 4. As shown in Fig. 3, the flat, narrow configuration of the thermal conductor 2 produces a small cross-section 10 that reflects the collimated light relative to the presence of the reflector 4.

In this aspect of the invention, the heat generated by the light-emitting diode 6 moves through the light-emitting device along the following thermal path: the metal core printed circuit board 7, the mounting platform 5, the cladding layer 9, the heat pipe 8, and the cladding Layer 9, and top edge 3 and reflector 4. The heat generated by the light-emitting diode 6 also moves through the metal core printed circuit board 7, the mounting platform 5, the cladding layer 9, the heat pipe 8, and the top edge 3 and the reflector 4. The top edge 3 and the reflector 4 act as a heat sink.

Another aspect of the invention is shown in Figures 8-13. In detail, The illuminating device 50 includes a reflector 53 coupled to a top edge 52, wherein the top edge 52 is coupled to a heat conductor 51. The heat conductor 51 includes a heat pipe 56 covered by a cladding layer 59, and a mounting platform 54 disposed on one side of the heat conductor 51 opposite to the reflector 53. As shown in FIG. 11, the light-emitting diode 55 is coupled to a metal core printed circuit board 60, and the metal core printed circuit board 60 is coupled to the mounting platform 54.

This aspect of the invention includes a main housing 57 having one or more heat sink fins 58 for maximizing surface area to increase its heat dissipation capacity. The top edge 52, the reflector 53, and the main housing 57 act as a heat sink, and the main housing 57 serves as a main heat sink.

As shown in Figures 10 and 11, the main housing 57 is coupled to a reflective edge 63. There is an air gap 62 between the reflector 53 and the main casing 57, as shown in Figs. The size of the air gap 62 may vary depending on the size of the reflector 53. The heat generated by the light-emitting diode 55 moves through a structure including moving through the metal core printed circuit board 60, the mounting platform 54, the cladding layer 59, the heat pipe 56, the cladding layer 59, and the top edge 52, the reflector 53 and the main The thermal path of the housing 57. The heat can also be moved through the metal core printed circuit board 60, the mounting platform 54, the cladding 59, the heat pipe 56, and the reflector 53, the reflector 53 and the main housing 57.

Another aspect of the invention is shown in Figures 18-20. Here, the illuminating device 500 includes a main housing 501; a reflector 502 having a front side and a rear side; a top edge 503 coupled to the main housing 501; a thermal conductor 1000 positioned On the front side of the reflector 502 and coupled to the top edge 503; a light emitting diode 504 positioned to face the reflector 502 directly The side causes light from the light emitting diode 504 to be substantially or completely guided to the front side of the reflector 502.

As shown in Fig. 19, the heat conductor 1000 is substantially S-shaped and includes a rod-shaped or substantially rod-shaped intermediate portion 1001; and curved wings 1002 and 1003 extending from respective ends of the intermediate portion 1001. As shown in Fig. 20, the curved wings 1002 and 1003 are coupled to the top edge 503, wherein the top edge 503 has slots 520, 521, and the slots 520, 521 allow the curved wings 1002 to 1003 is respectively fitted in the slots 520, 521; therefore, the heat conductor 1000 is allowed to be coupled to the top edge 503. The heat conductor 1000 and the top edge 503 can also be coupled by soldering, a thermal epoxy or a method that is coupled to the thermal conductor 1000 and is well known in the art to the top edge 503.

The heat conductor 1000 includes a mounting platform 530 positioned adjacent to or at a central optical axis of the reflector 502, and a mounting plate 531 coupled between the mounting platform 530 and the LED 504. The heat conductor 1000 also includes a heat pipe disposed on one or both of the intermediate portion 1001 and/or the curved wings 1002 and 1003.

A metal cladding layer 550 can be coupled to the thermal conductor 1000. For example, as shown in FIG. 19, a substantial portion of the thermal conductor 1000 is coupled to the metal cladding layer 550. The metal cladding layer 550 can be used to fix and guide a cable or wire extending from the top edge 503 along the intermediate portion 1001 of the heat conductor 1000 to the light emitting diode 504, and is made of, for example, stainless steel, aluminum, Made of copper or any other highly thermally conductive material.

As shown in FIG. 18, the present invention can include a glass cover 800 coupled to the top edge 503 and a cover edge 509. The glass cover 800 is at least The reflector 502 is protected, the heat conductor 1000, the mounting platform 530, the mounting plate 531 and the light emitting diode 504 are not affected by environmental hazards such as water and dust. The cover glass can also be used with most of the aspects of the invention described in Figures 1-6 and 8-13.

The present invention can also include a plastic housing 700 coupled to the bottom end of the main housing 501, and a socket 701 coupled to the plastic housing 700 (eg, an E26 socket, a GU10 socket, An E27 lamp holder, a GU24 lamp holder).

Another aspect of the invention is shown in Figures 21-27. In detail, the illuminating device 1200 includes a main casing 1300, a reflector 1800 having a front side and a rear side, and a heat conducting head 1500 disposed on the front side of the reflector 1800 and coupled to a heat conductor. 1600 thermally coupled, wherein the thermal conductor 1600 is positioned parallel to a central axis of the device ("central axis 2000") and on a front side of the reflector 1800 and extends through an opening 1850 of the reflector 1800 And reaching the rear side of the reflector 1800 and thermally coupled to the main housing 1300; at least two light emitting diodes 5000, 5001 thermally coupled to the thermal head 1500 and positioned with respect to the central axis 2000 The angle of inclination or directly facing the reflector faces the front side of the reflector 1800. The light emitting diodes 5000, 5001 can be positioned at 0 degrees (vertically facing the reflector and parallel to the central axis 2000) to 120 degrees with respect to the central axis 2000.

The illuminating device 1200 also includes an anti-glare cover 1700, and the anti-glare cover 1700 is coupled to the thermal head 1500 and covers at least a portion of the illuminating diodes 5000, 5001. As shown in FIGS. 25 and 28, the anti-glare cover has at least one portion covering the at least two light-emitting diodes 5000, 5001 At least two lips 1700a, 1700b. Thereby, the anti-glare cover helps to reduce direct glare caused by directly viewing the at least two light-emitting diodes 5000, 5001. The anti-glare cover also redirects light emitted by the at least two LEDs 5000, 5001 to the reflector 1800.

As shown in Figures 21 and 26, the reflector 1800 has at least two central optical axes, wherein each central optical axis is positioned in a manner that produces a beam angle of at least 30 degrees. The reflector 1800 has at least two independent optical systems that produce a plurality of identical and overlapping beams (see Figure 26). This reflector 1800 has a half-peak full amplitude ("FWHM") of the beam of 2 to 60 degrees.

The thermal head 1500 can have a triangular or irregular hexagonal side profile and have at least two mounting regions 1530a, 1530b that can be coupled directly or indirectly thereto. The thermal head 1500 is constructed of a thermally conductive material such as aluminum, copper, any other highly thermally conductive material, or a combination thereof.

As shown in Figures 22, 24 and 25, the heat conductor 1600 includes at least two heat pipes 1601a, 1601b thermally coupled to the at least two light emitting diodes 5000, 5001, the heat conducting head 1500 and the main casing 1300. The main housing 1300 has a slot 1900 in which the heat pipes 1601a, 1601b are fitted; thus, the heat pipes 1601a, 1601b are allowed to couple with the main housing 1300. The heat pipes 1601a, 1601b can be shaped to optimize heat transfer and transfer efficiency from the at least two light emitting diodes 5000, 5001 to the main casing 1300. For example, as shown in Fig. 24, the heat pipes 1601a, 1601b have a substantially J shape. The heat pipes 1601a, 1601b may also have a substantially L shape, a substantially T shape, or a combination thereof.

In this aspect of the invention, the at least two light emitting diodes The heat generated by 5000, 5001 moves through the illumination device 1200 along the following thermal path: thermal head 1500, thermal conductor 1600, and reflector 1800 and main housing 1300. The reflector 1800 and the main casing 1300 serve as a heat sink.

Another aspect of the invention is shown in Figures 28-31. The illuminating device 8000 includes a illuminating device 1200, wherein one end of the main housing 1300 is coupled to a plastic housing 700, and the plastic housing 700 is coupled to a socket 701 (eg, an E26 socket, GU10 lamp holder, an E27 lamp holder, and a GU24 lamp holder are coupled. The plastic housing 700 includes a plurality of main circuit boards and electrically insulates the main circuit boards from the main housing 1300.

One of the advantages of the present invention shown in Figures 21-31 is that it optimizes light efficiency by less obstructing light by a heat conductor extending through the front side of the reflector. In addition, since the heat conductor 1600 includes at least two heat pipes 1601a and 1601b that can guide more heat from the light-emitting diodes 5000 and 5001 to the reflector 1800 and the main casing 1300, the heat conductor 1600 can cope with the ratio. The thermal power of the heat conductors 2, 51, 1000 is high.

In addition, a user can mix colors from the at least two light emitting diodes 5000, 5001, and thus can select a wider range of colors of light to emit the light emitting devices 1200, 1800.

Thermal conductor

As shown in Figures 4 and 11, the heat conductors 2, 51 comprise a heat pipe 8, 56 covered by a cladding layer 9, 59, and the heat conductor 2 disposed opposite the reflectors 4, 53 , a mounting platform 5, 54 on one side of 51. The cladding layers 9, 59 may be constructed of a thermally conductive material such as aluminum, copper, graphite or zinc, and may include a mounting platform 5,54. The cladding layers 9, 59 can be used to increase the heat The structural strength of the tubes 8, 56 assists in transferring and distributing heat from the heat pipes 8, 56 to the heat sinks, such as the top edges 3, 52, the reflectors 4, 53 and the main housing 57.

As described above, and as shown in FIG. 19, the heat conductor 1000 can be coupled to a metal cladding layer 550. The metal cladding layer 550 covers a substantial portion of the intermediate portion 1001 of the thermal conductor 1000 and is used for aesthetic purposes to secure a cable or wire between the thermal conductor 1000 and the metal cladding layer 550, and / Or direct these cables or wires to the light emitting diode 504. The metal clad layer 550 can be constructed of a thermally conductive material such as stainless steel, aluminum, copper, or any other highly thermally conductive material.

Alternatively, as shown in Fig. 14, the light-emitting diode 91 may be directly attached to a heat conductor 90 (through the mounting platform 92 of the cladding layer 93).

In another aspect of the invention, the heat pipe is uncoated. For example, FIG. 15 shows a heat conductor 100 in which a light emitting diode 103 is coupled to a mounting platform 102, and the mounting platform 102 is then directly coupled to a heat pipe 101. The mounting platform 102 can be cylindrical and can partially or completely surround at least the center of the heat pipe 101.

The heat pipe (for example, the heat pipes 8, 56, 101, 1601a, 1601b) may be composed of porous copper, and the porous copper has a large number of cavities filled with pure water. As shown in Figure 7, the water in the heat pipe evaporates into a vapor as it absorbs heat from a heat source. See 400 in Figure 7. The evaporated water then migrates along the vapor cavity to the cooler section of the heat pipe. See 401 in Figure 7. Here, the vapor cools rapidly and condenses back to the fluid, and the fluid is absorbed by the core material, releasing thermal energy. See 402 in Figure 7. The fluid then reinforces the heated segments along the inner cavities (see 403 in Figure 7) and repeats the above Heat pipe thermal cycle. The heat pipe uses the above mechanism to transfer thermal energy from the light emitting diode to the heat sink, such as the top edge 3, 52, the reflector 4, 53, 1800, and the main casing 57, 501, 1300,

The heat pipe can be flattened (in a cross-sectional direction) into a thin strip to reduce light absorption.

Another aspect of the invention includes a thermal conductor having one or more heat pipes. For most heat pipes, each heat pipe is coupled to a central hub (similar to a spoke on a wheel) and the central hub is positioned at or near the central optical axis of a reflector. The central hub serves as a mounting platform for one or more of the light emitting diodes and is constructed of a thermally conductive material such as, for example, aluminum, copper or any other highly thermally conductive material.

In another aspect of the invention, the heat conductor extends upwardly to or near a central axis of a reflector and is only at a connection point (e.g., connection point 900 or 901 of Figure 1, or connection point 910 of Figure 8). Or 911) coupled to the top edge. Therefore, the heat conductor does not form a string or a diameter of the top edges of the first and eighth figures. At or near the central axis of the reflector, the thermal conductor includes a mounting platform having one of the light emitting diodes directly coupled thereto, or a light emitting diode coupled to a metal core printed circuit board or a mounting board And the metal core printed circuit board or the mounting board is coupled to the mounting platform. This other aspect of the invention reduces the thermal barrier caused by the thermal conductor and improves lens efficiency while promoting heat dissipation and anti-glare.

The mounting platform 5, 54, 102, 530 is constructed of a thermally conductive material such as aluminum, copper or any other highly thermally conductive material. Moreover, as described above, the mounting platform provides a larger non-glare of the light-emitting diode relative to existing lighting devices. protection. In the present invention, since (1) the light emitting diode system is coupled to the mounting platform and positioned to face the reflector directly, light emitted by the light emitting diode is substantially or completely guided to the reflection. And (2) the mounting platform is shaped (eg, circular) in a manner that prevents direct viewing of the light emitting diode at any viewing angle, thereby eliminating (or at least reducing) the possibility of direct glare from the light emitting diode Sex.

reflector

The reflectors 4, 53, 502, 1800 are constructed of a thermally conductive material such as aluminum and serve as a heat sink. Alternatively, the reflectors 4, 53, 502, 1800 may be constructed of a non-thermally conductive material such as plastic.

As shown in Figures 6 and 26, the light emitted by the light-emitting diodes 6, 5000, 5001 is substantially or completely directed to the reflectors 4, 1800, wherein the reflectors 4, 1800 will be illuminated by the light-emitting diodes The light emitted by body 6 is collimated into a beam and reflected at a particular beam angle. The beam angle can range from 2 to 60 full-width ("FWHM"). In order to eliminate or reduce glare, the reflectors 4, 1800 of the present invention are designed to substantially or completely collect light emitted by the light-emitting diodes 6, 5000, 5001 and to eliminate (or at least reduce) a direct glare The light is redirected in a manner that the brightness of the invention (i.e., about 45 to 85 degrees relative to the vertical line).

The reflectors 4, 53, 502, 1800 can take a variety of shapes to achieve various beam modes. It can be shaped into any tapered section (eg, hyperbolic, elliptical or parabolic), either alone or in various combinations, in a two- or three-dimensional shape. Furthermore, the reflectors 4, 53, 502, 1800 can be symmetrical or asymmetrical.

Light-emitting diode

A light emitting diode can be a light emitting diode module having one or more wafers. The light emitting diode can be a high power light emitting diode. One or more light emitting diodes can be used in the present invention.

The LEDs 6, 55, 504 are coupled to a metal core printed circuit board 7, 60 or a mounting board 531. Alternatively, the light emitting diodes 91, 103 are coupled to the mounting platforms 92 and 102. The light emitting diodes may be coupled to a printed circuit board (metal core or F4 based) coupled to the thermal head 1500, or may be coupled to the at least two light emitting diodes 5000, 5001, or It is coupled to the thermal head 1500.

The light emitting diode can be soldered to a metal core printed circuit board, a mounting board, or a thermal head. Hot paste, thermal grease, soldering, reflow soldering or any soldering material or technique known in the art can be used to couple the light emitting diode to the metal core printed circuit board, mounting board, mounting platform, or On the thermal head.

The at least two light emitting diodes 5000, 5001 may be the same or different colors. The different colors of the light-emitting diodes 5000 and 5001 allow color mixing and change. The light-emitting diodes 5000, 5001 can produce a color temperature range of 2700K to 5000K. These LEDs 5000, 5001 can be programmed by independently controlling the LED current. Power supply and control units are necessary to allow for this color mixing and change.

Metal core printed circuit board or mounting board

The present invention includes a metal core printed circuit board (see metal core printed circuit boards 7, 60 shown in Figures 3 and 12). The metal core printed circuit board includes a light emitting diode circuit and functions as a heat transfer medium. For example, the gold The core printed circuit board comprises a base metal plate (copper or aluminum, approximately 0.8 to 3 mm thick), a dielectric layer (stacked on top of the base metal plate, approximately 0.1 mm thick), and a copper circuit trace (printed on The top of the dielectric layer is approximately 0.05 to 0.2 mm thick).

Alternatively, as shown in Figures 15 and 16, a metal core printed circuit board is not included in the present invention to further reduce thermal resistance; therefore, the junction temperature of the light emitting diode is reduced and the maximum light emitting diode power is increased.

Alternatively, as shown in FIG. 19, a mounting plate 531 is used, wherein the mounting plate 531 is coupled to the LED 504 and the mounting platform 530. The mounting plate is constructed of a thermally conductive material such as copper or any other highly thermally conductive material and is approximately 0.8 to 3 mm thick. Mechanical techniques (e.g., screws) as known in the art are used to couple the mounting plate and the mounting platform, and a thermal grease or paste having a high thermal conductivity can be used between the mounting plate and the mounting platform.

Top edge and cover edge

The top edge 3, 52, 503 is constructed of a thermally conductive material such as aluminum, copper or zinc or any other highly thermally conductive material. The top edge 3 acts as a primary heat sink (see, for example, Figure 1), or, as the top edge 52, 503, as a primary heat sink (see, for example, Figures 8 and 18).

As shown in Figures 16 and 18, the present invention includes a cover 509 that facilitates securing the glass cover 800 to the top edge 503.

Main housing, plastic housing and lamp holder

The main housing 57, 501, 1300 is constructed of a thermally conductive material such as aluminum, copper or zinc or any other highly thermally conductive material. The main housing 57, 501, 1300 acts as a main heat sink (see, for example, Figures 8, 17, 23). As in the eighth, 17, As shown in Fig. 23, the main housing 57, 501, 1300 can have one or more fins 58, 570, 1350 and/or a tapered or cylindrical shape to increase its surface area to increase its heat dissipation capacity. The main casing 57, 501, 1300 may be substantially frustoconical in shape. The main housing may also be cylindrical or tapered in shape.

In one aspect of the present invention, one end of the main housing 57, 501, 1300 is coupled to a plastic housing 700, and the plastic housing 700 is coupled to a socket 701 (eg, an E26 socket, GU10 lamp holder, an E27 lamp holder, and a GU24 lamp holder are coupled. The plastic housing 700 includes a main circuit board and electrically insulates the main circuit board from the main housing 57, 501.

It should be understood by those of ordinary skill in the art that the main housing can be used with the aspect of the invention described in Figures 1-6, and the plastic housing 700 and the socket 701 can be used in the first Figure 6, the aspects of the invention described in Figures 8-13 and 28-31 are used together.

Although many specific embodiments have been shown and described herein, it is understood by those of ordinary skill in the art that many alternative and/or equivalent embodiments may be substituted. Specific embodiments are described. This application is intended to cover any adaptations or variations of the specific embodiments described herein. Therefore, it is intended that the invention be limited only by the scope of the invention and its equivalents.

1‧‧‧Lighting device

2‧‧‧ Thermal Conductor

3‧‧‧Top edge

4‧‧‧ reflector

5‧‧‧Installation platform

6‧‧‧Lighting diode

7‧‧‧ Printed Circuit Board ("PCB")

8‧‧‧heat pipe

9‧‧‧Cladding

10‧‧‧Small cross section

50‧‧‧Lighting device

51‧‧‧ Thermal Conductor

52‧‧‧Top edge

53‧‧‧ reflector

54‧‧‧Installation platform

55‧‧‧Lighting diode

56‧‧‧heat pipe

57‧‧‧Main housing

58‧‧‧Heat fins

59‧‧‧Cladding

60‧‧‧Metal core printed circuit board

62‧‧‧Air gap

63‧‧‧ Reflection edge

90‧‧‧ Thermal Conductor

91‧‧‧Lighting diode

92‧‧‧Installation platform

93‧‧‧Cladding

100‧‧‧ Thermal Conductor

101‧‧‧heat pipe

102‧‧‧Installation platform

103‧‧‧Lighting diode

500‧‧‧Lighting device

501‧‧‧Main housing

502‧‧‧ reflector

503‧‧‧Top edge

504‧‧‧Lighting diode

509‧‧‧ Cover

520,521‧‧‧ slots

530‧‧‧Installation platform

531‧‧‧Installation board

550‧‧‧Metal coating

700‧‧‧Plastic shell

701‧‧‧ lamp holder

800‧‧‧ glass cover

900, 901, 910, 911 ‧ ‧ connection points

1000‧‧‧ Thermal Conductor

The middle part of 1001‧‧

1002,1003‧‧‧Bend wing

1200‧‧‧Lighting device

1300‧‧‧ main housing

1500‧‧‧heat head

1530a, 1530b‧‧‧Installation area

1600‧‧‧ Thermal Conductor

1601a, 1601b‧‧‧ heat pipe

1700‧‧‧Anti-glare cover

1700a, 1700b‧‧‧ Lips

1800‧‧‧ reflector

1850‧‧‧ openings

1900‧‧‧ slots

2000‧‧‧Center axis

5000,5001‧‧‧Lighting diode

8000‧‧‧Lighting device

1 is a perspective view of a top side of a light-emitting device according to an aspect of the present invention; and FIG. 2 is a perspective view of a bottom side of the light-emitting device shown in FIG. 1; Figure 3 is a "X-ray" view of the bottom side of the light-emitting device shown in Figure 3; Figure 4 is a cross-sectional perspective view of the light-emitting device shown in Figure 1; A cross-sectional perspective view of the light-emitting device shown in Fig. 1; a cross-sectional view of the light-emitting device shown in Fig. 1; and a cross-sectional view of a conventional heat pipe (from http) ://en.wikipedia.org/wiki/Image:Heat_Pipe_Mechanism.png); FIG. 8 is a perspective view of a light-emitting device according to another aspect of the present invention; and FIG. 9 is a light-emitting device shown in FIG. 3 is a perspective view of a light-emitting device shown in FIG. 8; FIG. 11 is another perspective view of the light-emitting device shown in FIG. 8; and FIG. 12 is a view of FIG. An exploded perspective view of the light-emitting device shown in FIG. 13 is an exploded cross-sectional view of the light-emitting device shown in FIG. 8; and FIG. 14 is a light-emitting device directly coupled to one of the light-emitting devices according to an aspect of the present invention. A perspective view of a thermal conductor (coated heat pipe) of a polar body; Figure 15 is a direct view of another aspect of the present invention A perspective view of a heat conductor (an uncoated heat pipe) connected to one of the light-emitting diodes; and a perspective view of a light-emitting device (including a S-shaped heat conductor) according to another aspect of the present invention; ; Figure 17 is a side view of the light-emitting device shown in Figure 16; Figure 18 is a cross-sectional perspective view of the light-emitting device shown in Figure 16, and Figure 19 is a top edge of the light-emitting device shown in Figure 16 An exploded perspective view of the mounting device (including a metal cladding layer, an S-shaped heat conductor, a mounting platform, a mounting plate, and a light emitting diode); FIG. 20 is a top view of the light emitting device shown in FIG. A perspective view of the side (without a glass cover); a view of the top side of the light-emitting device according to another aspect of the present invention; and a view of the top of the light-emitting device shown in FIG. Fig. 23 is an exploded cross-sectional view of the light-emitting device shown in Fig. 21; Fig. 24 is a cross-sectional view of the light-emitting device shown in Fig. 21; and Fig. 25 is a view of Fig. 21 Another cross-sectional view of the illuminating device; Fig. 26 is a cross-sectional view of the illuminating device shown in Fig. 21; and Fig. 27 is a perspective view of the illuminating device shown in Fig. 21; Is a perspective view of a light-emitting device according to another aspect of the present invention; and FIG. 29 is a light-emitting view shown in FIG. The opposite side of bottom perspective view of FIG.; FIG. 30 is a side view of the section shown in FIG. 28 of the light emitting device; FIG. 31 is a second section 28 shown in FIG cross-sectional perspective view of the light emitting device.

1‧‧‧Lighting device

2‧‧‧ Thermal Conductor

3‧‧‧Top edge

4‧‧‧ reflector

5‧‧‧Installation platform

900,901‧‧‧ connection point

Claims (16)

A light-emitting device comprising: a main casing; a reflector disposed in the main casing, the reflector having a front side and a rear side; and a heat conductor comprising at least two heat pipes, wherein the at least two heat pipes One of the first portions is positioned parallel to a central axis of the illuminating device and on a front side of the reflector, and a second portion of each of the heat pipes of the at least two heat pipes is in a rear side of the reflector And being thermally coupled to the main casing; a heat conducting head positioned on the front side of the reflector and thermally coupled to the heat conductor; at least two light emitting diodes, the heat conducting head and the heat conducting portion The body is thermally coupled, and the at least two light emitting diode systems are positioned to face the front side of the reflector such that light emitted by the at least two light emitting diodes is directed to the front side of the reflector. The illuminating device of claim 1, wherein the at least two heat pipes are substantially J-shaped, L-shaped, or a combination thereof. The illuminating device of claim 1, wherein the heat conductor provides a passage for heat to flow from the at least two light emitting diodes to the main casing. The illuminating device of claim 1, wherein the reflector has at least two central optical axes. The illuminating device of claim 1, wherein one end of the heat conductor is thermally coupled to the at least two light emitting diodes, and the heat conductor is another One end is thermally coupled to the main housing. The illuminating device of claim 1, wherein the reflector has a symmetrical or asymmetrical shape. The illuminating device of claim 1, wherein the main casing is substantially frustoconical, cylindrical or cubic, and is composed of a heat conductive material. The illuminating device of claim 1, wherein the main housing comprises one or more heat dissipating fins. The illuminating device of claim 7, further comprising: a plastic housing coupled to the main housing; and a lamp holder coupled to the plastic housing. The illuminating device of claim 9, wherein the lamp holder is an E26 lamp holder, a GU10 lamp holder, an E27 lamp holder, or a GU24 lamp holder. The illuminating device of claim 1, further comprising the at least two illuminating diode systems being positioned within a range of 0 to 120 degrees with respect to a central axis of the illuminating device. The illuminating device of claim 1, wherein the heat conducting head has a triangular side profile or an irregular hexagonal side profile, and has at least two mounting regions for the at least two light emitting diodes, respectively. The illuminating device of claim 1, wherein the thermal head is made of aluminum, copper, or a combination thereof. The illuminating device of claim 1, further comprising a printed circuit board (PCB) coupled to the at least two illuminating diodes and the thermal head. A light emitting device comprising: a main housing having a substantially frustoconical shape; a reflector disposed in the main housing, the reflector having a front side, a rear side and at least two central optical axes; a heat conductor comprising at least a substantially J-shaped heat pipe, wherein the first portion of the at least two substantially J-shaped heat pipes is rod-shaped and located on a front side of the reflector, and is thermally conductive with one of the central axes of the light-emitting device The head is coupled, and the second portion of the at least two substantially J-shaped heat pipes are passed through the reflector at an opening of the central axis of the light-emitting device, and one of the at least two substantially J-shaped heat pipes The third portion is curved and at least a portion of the third portion is coupled to the main housing; and at least two light emitting diodes are thermally coupled to the thermal head and positioned opposite the light emitting device One of the central axes faces the front side of the reflector at an oblique angle such that light emitted by the at least two light emitting diodes is directed to the front side of the reflector. The illuminating device of claim 1 or 15, further comprising an anti-glare cover coupled to the thermal head.