WO2008080259A1

WO2008080259A1 - Light emitting diode illuminating equipment

Info

Publication number: WO2008080259A1
Application number: PCT/CN2006/003716
Authority: WO
Inventors: Jen-Shyan Chen
Original assignee: Jen-Shyan Chen
Priority date: 2006-12-30
Filing date: 2006-12-30
Publication date: 2008-07-10
Also published as: KR101010590B1; KR20090042756A; EA016078B1; EP2098778A1; AU2006352634A1; WO2008080259A9; AU2006352634B2; CA2674124C; CA2674124A1; BRPI0622246A2; EP2098778A4; JP2010515208A; EA200970661A1

Abstract

A light emitting diode illuminating equipment (1) comprises a heat-dissipating plate member (11); a plurality of heat-dissipating fins (17) extending from the heat-dissipating plate member (11); a plurality of heat-conducting members (12) connecting to the heat-dissipating plate member (11); a plurality of diode light-emitting apparatus (13) connecting to the corresponding heat-conducting member (12); a plurality of optical devices (14), each of which corresponds to one of diode light-emitting apparatus (13) and adjusts the shape of light field of each diode light-emitting apparatus (13); a barrel (15) including a first circumference and a second circumference, the first circumference is joined to the heat-dissipating plate member (11) and formed an inner space for receiving the heat-conducting members (12) and diode light-emitting apparatus (13); and a transparent shield (16) jointed to the second circumference of the barrel (15).

Description

Light-emitting diode lighting equipment

Technical field

The present invention relates to a light-emitting diode illuminating equipment, and in particular, to a secondary optics device for producing a specific light pattern. Light-emitting diode lighting equipment. Background art

Light emitting diodes (LEDs) have many advantages such as power saving, shock resistance, fast response, and mass production. Therefore, the current lighting equipment using light-emitting diodes as a light source has been continuously researched and developed. 1A is a front view of an illumination device in which a plurality of light-emitting diodes are arranged in an array manner, and FIG. 1B is a cross-sectional view taken along line X-X of FIG. 1A. As shown in FIG. 1A, B, the illumination device arranges a plurality of light-emitting diodes in an array to obtain high brightness, and each of the light-emitting diodes corresponds to a light cup, the light cup book

It is used to reflect the light emitted by the light-emitting diode so that the light can be concentrated to obtain higher brightness. However, in this way, only light can be concentrated isotropically, and a specific light field shape cannot be produced to satisfy a specific use, so that the illumination function is limited.

Therefore, there is a need to provide a new light-emitting diode lighting device that provides a specific light field shape to solve the above problems. Summary of the invention

One aspect of the present invention is to provide a light emitting diode lighting apparatus.

Another aspect of the present invention is to provide a light emitting diode lighting apparatus having secondary optics to produce a particular light field shape.

According to a preferred embodiment, the LED lighting device of the present invention comprises a heat-dissipating plate device, N heat conducting devices, and N diode lighting devices (Diode light). -emitting apparatus), N optical devices, a Hollow barrel, and a transparent shield, wherein N is a natural number. The heat dissipating plate member has a first surface and a second surface that is a reverse surface of the first surface, and a plurality of heat dissipating fins are extended at the second surface. Each of the thermally conductive elements includes a first portion and a second portion extending from the first portion and having a flat end. Each of the two-pole light-emitting devices corresponds to one of the N heat-conducting elements. Each of the diode light emitting devices is disposed on the flat end of the corresponding first heat conducting component and is configured to convert an electrical energy into a light. Each optical component corresponds to a diode illuminating device in the diode illuminating device for adjusting the corresponding diode illuminating The barrel includes a first circumference and a second circumference, the hollow barrel engaging the heat sink element with the first circumference to expose the heat dissipation fins in the air and form a space to accommodate the heat conducting elements and These diode illuminators. The transparent cover engages with the second periphery of the hollow barrel.

According to the preferred embodiment, the LED lighting device further includes a partition plate component

(Partition plate device), the partition plate member is disposed in the hollow barrel, and the space is divided into a first chamber and a second chamber, wherein the partition plate member has N through holes, each of which has two poles The body light emitting device corresponds to one of the through holes.

Each of the optical components includes a support and a lens. The support body removably engages the spacer element. The support body includes a first open end and a second open end, the first open end includes a plurality of hooks for engaging the support body to the partition plate member, and the second open end accommodates the lens. The lens may be an elliptical lens, a circular lens, a cat's eye lens, an irregular lens, a polygonal lens or other form of lens (or lens group). According to the preferred embodiment, the lens is a cat eye lens. The lens includes a surface on which a recess is formed along an ellipse minor axis of the lens such that light emitted through the lens forms a light field shape that meets a particular need.

Thus, the light emitted by each of the diode illuminators can be adjusted via a corresponding lens to produce a light field shape that is non-isotropic and meets a particular need, such as road lighting. In practical applications, the LED lighting device of the present invention can be adjusted and designed to produce a light field shape that meets the needs of the application, in accordance with different application requirements.

The advantages and spirit of the present invention will be further understood from the following detailed description of the invention and the accompanying drawings. DRAWINGS

1A is a front elevational view showing an illumination device in which a plurality of light emitting diodes are arranged in an array manner.

Fig. 1B is a cross-sectional view taken along line X- } of Fig. 1A.

2 is a perspective view of a light emitting diode lighting apparatus in accordance with a preferred embodiment of the present invention. Fig. 3A is a cross-sectional view taken along line YY of Fig. 2.

Fig. 3B is a partial cross-sectional view taken along line Z-Z of Fig. 2.

4A is a front elevational view of the optical component in accordance with the preferred embodiment.

Fig. 4B is a cross-sectional view taken along line W-W of Fig. 4A.

Figure 5 is a schematic illustration of the shape of a light field formed in accordance with the preferred embodiment.

6 is a cross-sectional view of a light emitting diode illumination device in accordance with an embodiment.

FIG. 7 is a cross-sectional view showing a light emitting diode lighting apparatus according to another embodiment. Please refer to FIG. 2 and FIGS. 3A and B. FIG. 2 is a perspective view of a light-emitting diode lighting device 1 according to a preferred embodiment of the present invention. Fig. 3A is a cross-sectional view taken along line YY of Fig. 2. Fig. 3B is a partial cross-sectional view taken along line Z-Z of Fig. 2.

According to a preferred embodiment of the present invention, the LED illumination device 1 comprises a heat sink element 11, six first heat conduction elements 12, six diode light-emitting devices 13, six optical elements 14, and a hollow The barrel 15 and a transparent cover 16 are provided. The heat dissipating plate member 11 has a first surface 112 and a second surface 114 which is a reverse surface of the first surface, and a plurality of heat dissipating fins 17 extend from the second surface 114. Each of the first thermally conductive elements 12 includes a first portion 122 and a second portion 124 extending from the first portion 122 and having a flat end 126.

It should be emphasized that each of the diode light-emitting devices 13 corresponds to one of the first heat-conducting elements 12, and each of the two-pole light-emitting devices 13 is smoothly joined to the corresponding first heat-conducting elements 12. On the flat end 126, and used to convert an electrical energy into a light. Thereby, the heat generated during the operation of each of the diode light-emitting devices 13 is guided by the corresponding first heat-conducting element 12 from its flat end 126 via the second portion 124 and the first portion 122 to the The heat sink element 11 and the plurality of heat dissipation fins 17 are further cooled by the heat dissipation element 11 and the plurality of heat dissipation fins 17 .

The heat dissipating plate member 11 of the illuminating diode device 1 includes six first grooves (not shown) formed on the first surface 112 of the heat dissipating plate member 11. Each of the groove pairs should wait for one of the first heat conducting elements 12, and its shape is in close contact with the outer surface of the first portion 122 of the corresponding first heat conducting element 12 to enhance heat dissipation. effectiveness. Moreover, a first heat conducting material is filled between the first portion 122 of each of the first heat conducting elements 12 and the corresponding first trench to further enhance heat dissipation efficiency.

In addition, the illuminating diode device 1 includes two second heat conducting elements 18 attached to the first surface 112 of the heat dissipating plate member 11 to reinforce the heat dissipating plate member 11 and the plurality of heat dissipating fins 17 heat radiation. As shown in the preferred embodiment, the second heat conducting elements 18 are interleaved with the first heat conducting elements 12 to achieve a better heat dissipation effect. Moreover, the heat dissipating plate member 11 includes two second grooves (not shown in the drawing) formed on the first surface 112 of the heat dissipating plate member 11. Each of the second grooves corresponds to a second heat conducting element 18 of the second heat conducting element 18, and its shape is closely matched to the appearance of the corresponding second heat conducting element 18 to enhance heat dissipation efficiency. A heat conducting material is also filled between each of the second heat conducting elements 18 and the corresponding second trenches to further enhance heat dissipation efficiency. In addition, the number and arrangement of the second heat conduction elements 18 may be different from the foregoing, and should be determined depending on the overall structure of the product and the use environment. In principle, the aforementioned staggered arrangement still allows the heat sink element 11 to achieve a good heat dissipation effect.

In accordance with a preferred embodiment of the present invention, each of the optical elements 14 corresponds to a diode illuminating means 13 of the diode illuminating means 13 for adjusting the light field shape of the corresponding diode illuminating means 13. The bacteria are coupled to the heat dissipating plate member 11 to expose the plurality of heat dissipating fins 17 in the air, and form a space S for accommodating the first heat conducting elements 12 and the diode light emitting devices 13. The transparent cover 16 is engaged with the other periphery of the hollow tub 15 to close the space S, but is not necessary for sealing. The hollow barrel 15 is further connected to the heat sink element 11 by a heat-insulating ring 19 to reduce or insulate the heat conducted by the heat sink element 11 and form the light-emitting diode illumination. When the device 1 is hot and cold, it is more helpful for heat dissipation.

According to the preferred embodiment, the LED lighting device 1 further includes a partition plate device 20, the partition plate member 20 is disposed in the hollow barrel 15, and the space S is further It is separated into a first chamber S1 and a second chamber S2. The partition plate member 20 has six first through holes 202 thereon, and each of the diode light-emitting devices 13 corresponds to a first through hole 202. According to the preferred embodiment, each of the diode illuminators 13 passes through the corresponding first through hole 202 and is placed in the second chamber S2 (or in the corresponding first through hole 202). The divider 20 can assist in securing the diode illuminators 13 or the first thermally conductive elements 12. However, in practical applications, the position of the diode light-emitting device 13 relative to the partition plate member 20 is not limited to the above.

4A and B, FIG. 4A is a front elevational view of the optical component 1 in accordance with the preferred embodiment. Fig. 4B is a cross-sectional view taken along line W-W of Fig. 4A. According to the preferred embodiment, each optical component 14 includes a support 142 and a lens 144. The support body 142 is detachably coupled to the corresponding diode light-emitting device 13. The support body 142 includes a first open end 1422 and a second port end 1424. The first open end 1422 is coupled to the corresponding diode illuminator 13 and the second open end 1424 receives the lens 144. The lens 144 may be an elliptical lens, a circular lens, a cat's eye lens, an irregular lens, a polygonal lens or other form of lens (or lens group). According to the preferred embodiment, the lens 144 is a cat eye lens. The lens 144 includes a surface 1442 and defines a direction D along the surface 1442. The lens 144 forms a recess 1444 in the direction D on the surface 1442 such that light emitted through the lens can form a light field shape that meets a particular need. According to the preferred embodiment, the direction is an elliptical minor axis of the lens 144.

Incidentally, please refer to FIG. 5. FIG. 5 is a schematic diagram showing the shape of a light field formed according to the preferred embodiment. The formed light field shape is bilaterally symmetrical, and it is shown that the light-emitting diode illumination device 1 can adjust the shape of the conventional circular light field to a left-right elongated shape, which is quite advantageous for the application of street lighting. In practical applications, the light-emitting diode lighting device of the present invention can form different light field shapes by configuring different lenses in accordance with different application requirements. Further, the aforementioned lens is not limited to a single material, and a composite lens can also be used in the present invention. For example, the refractive index of the middle of the lens is lower than the refractive index of the periphery or the refractive index of the lens is continuously changed to average the brightness within the shape of the light field. In addition, at present, the packaging process of the general light-emitting diode also encapsulates the package material into a convex shape to form a simple positive lens. After the package, a positive lens is directly covered thereon to achieve the effect of collecting light. However, it is impossible to form the desired light field shape. The diode lighting device can use the above-described two package forms of the light emitting diodes to still effectively form the desired light field shape.

Please refer to FIG. 6. FIG. 6 is a cross-sectional view of a light emitting diode illumination device according to an embodiment. In comparison with the preferred embodiment, the partitioning plate 20' of the LED lighting device forms a plurality of holes 204 in the vicinity of each of the first through holes 202, and the supporting body 142' of each of the optical elements 14' The first open end includes a plurality of hooks 1426. The hooks 1426 are inserted into the holes 204 to engage the support 142' to the divider member 20.

Please refer to FIG. 7, FIG. 7 is a cross-sectional view of a light emitting diode lighting device according to another embodiment. In comparison to the preferred embodiment, the first open end of the support 142" of each optical component 14" of the LED illumination device includes a plurality of hooks 1426'. The hooks 1426' are inserted into the corresponding first through holes 202' to engage the support 142" to the partition member 20". It is worth mentioning that the connection between the support body and the partition plate of the light-emitting diode lighting device of the present invention can also design the hook on the partition plate, and the hole is designed on the support body. Still achieve the purpose of detachable connection. In addition, it can be connected by means of screw locking.

According to the preferred embodiment, the LED device 1 further includes a heat-insulating plate device 21, the heat shield member 21 is disposed in the first chamber S1, and further The one chamber S1 is partitioned into a third chamber S12 and a fourth chamber S14. The heat insulating plate member 21 has six second through holes 212 thereon, and the second portion 124 of each of the first heat conducting members 12 corresponds to one of the second through holes 212 and passes through the second through hole 212. Corresponding second through hole 212. Therefore, the heat conducted to the heat dissipating plate member 11 is not radiated or conducted to the fourth chamber S14 due to the insulation of the heat insulating plate member 21, and the heat is prevented from thermally invading the diode illuminating device 13. Moreover, the gap between the first heat conducting elements 12 and the second through holes 212 is filled with a heat insulating material to enhance the heat insulating effect. In addition, the LED lighting device 1 further includes a heat insulating sleeve 22, which is sleeved in the second portion of the first heat conducting component 12 of the first heat conducting elements 12. The upper portion 124 is disposed on the second portion 124 of the fourth chamber S14 such that the heat generated by the diode light-emitting device 13 corresponding to the first heat-conducting element 12 during operation is not dissipated into the first portion. The four chambers S14 further enhance the heat dissipation efficiency of the heat sink element 11. It is worth mentioning that if the partition plate member 20 itself has a heat insulating function, the heat insulating plate member 21 can be omitted to simplify the structural design. The foregoing structural description is also applicable to the foregoing specific embodiments, as shown in Figs. 6 and 7.

It is worth mentioning that the foregoing description takes the same lens as an example. However, in practical applications, each of the diode light-emitting devices can respectively correspond to different lenses to obtain a more diverse light field shape. In addition, in the foregoing specific embodiments, the first heat conducting component 12 and the second heat conducting component 18 are respectively a heat pipe, a heat column, and a vapor cavity. Vapor chamber, or other thermally conductive element. The first heat conducting elements 12 and the second heat conducting elements 18 are separable Made of material with thermal coefficient. One of the diode light-emitting devices 13 includes at least one light-emitting diode or at least one laser diode, and can use different colors of light. Diode.

In summary, the light-emitting diode lighting device of the present invention has a secondary optical design, and the optical field shape generated by the diode light-emitting device is adjusted by optical elements to meet different application requirements. Moreover, the LED lighting device can adjust and design optical components to produce a more diverse optical field shape to meet more diverse applications. It should be noted that the foregoing specific embodiment uses a street lamp as an example, but is not limited thereto. The application of the invention is applicable to anyone with a need for lighting, especially where there is a need for a particular light field shape.

The features and spirit of the present invention are intended to be more apparent from the detailed description of the preferred embodiments of the invention. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.

Claims

Claim

1. Light-emitting diode illuminating equipment, including '.

a heat-dissipating plate device having a first surface and a second surface that is a reverse side of the first surface;

a plurality of heat-dissipating fins extending from the second surface of the heat dissipating plate member;

N first heat conducting elements, each of the first heat conducting elements comprising a first portion and a second portion extending from the first portion and having a flat end, the first portion being attached to the On the first surface of the heat sink element, the tantalum is a natural number;

a diode light-emitting device, each of which is disposed on a flat end of one of the first heat conducting elements and configured to convert an electrical energy into a Light

An optical device, each of which corresponds to a diode illuminating device in the diode illuminating device for adjusting a light field shape of the corresponding illuminating device;

a Hollow barrel, the hollow barrel comprising a first circumference and a second circumference, the hollow barrel engaging the heat sink element with the first circumference to expose the heat sink fins in the air And forming a space for accommodating the first heat conducting elements and the diode light emitting devices;

A transparent shield that engages the second periphery of the hollow barrel.

2. A light-emitting diode lighting device according to claim 1, wherein each of the optical elements comprises a support and a lens detachably coupled to the corresponding diode light-emitting device.

The illuminating device of claim 2, wherein the support body comprises a first open end and a second open end, the first open end is connected to the corresponding diode illuminating device, and the first The open end accommodates the lens.

The light-emitting diode lighting apparatus according to claim 3, wherein the lens is selected from the group consisting of an elliptical lens, a circular lens, a cat's eye lens, an irregular lens, and a polygonal lens.

5. The LED lighting device of claim 4, wherein the one optical element comprises a first optical element and a second optical element, the lens of the first optical element and the second optical element The lenses are the same.

6. The LED lighting device of claim 4, wherein the one optical element comprises a first optical element and a second optical element, the lens of the first optical element and the second optical element The lenses are not the same.

7. The LED lighting device of claim 1 further comprising a spacer member • e), 'the partitioning plate member is disposed in the hollow barrel, and the space is further divided into a first chamber and a second chamber, the partitioning plate member having N first through holes thereon, each of which The polar body light emitting device corresponds to a first through hole.

8. A light-emitting diode lighting apparatus according to claim 7, wherein each of the optical elements comprises a support body and a lens detachably coupled to the partition plate member.

The illuminating diode lighting device of claim 8 , wherein the support body comprises a first open end and a second open end, the first open end comprises a plurality of hooks for connecting the support body To the partition plate member, and the second port end accommodates the lens.

The light emitting diode lighting device of claim 8, wherein the lens is selected from the group consisting of an elliptical lens, a circular lens, a cat's eye lens, an irregular lens, and a polygonal lens.

11. A light-emitting diode lighting apparatus according to claim 9, wherein the cat-eye lens comprises a surface on which a direction is defined, the lens forming a groove in the direction along the surface.

12. A light emitting diode illumination device according to claim 11 wherein the direction is an elliptical minor axis of the lens.

The illuminating diode lighting device of claim 7, wherein the partitioning plate member is heat-insulated

The illuminating diode lighting device of claim 7, further comprising a heat-insulating plate device, wherein the heat insulating plate member is disposed in the first chamber, and the heat insulating plate member is mounted thereon There are two second through holes, and the second portion of each of the first heat conducting elements corresponds to one of the second through holes and passes through the corresponding second through hole. '

15. The illuminating diode lighting device of claim 14, further comprising a heat-insulating sleeve that is sleeved over one of the first thermally conductive elements On the second part.

16. The LED lighting device of claim 1, wherein the heat dissipating plate member comprises N first grooves formed on the first surface of the heat dissipating plate member, the first of each of the first heat conducting members The portion is attached to a corresponding first groove.

17. The LED lighting device of claim 16, wherein a first portion of each of the first thermally conductive elements is filled with a thermally conductive material between the corresponding first trenches.

The illuminating diode lighting device of claim 1, further comprising a plurality of second heat conducting elements attached to the first surface of the heat sink element.

The illuminating diode lighting device of claim 18, wherein the heat dissipating plate member comprises a plurality of second grooves formed on the first surface of the heat dissipating plate member, each of the second heat conducting members being attached to One corresponds to the second groove.

20. The LED lighting device of claim 19, wherein each of the second thermally conductive elements and the corresponding second trench are filled with a thermally conductive material. The illuminating diode lighting device described above further includes an adiabatic ring

(Heat-insulating ring), wherein the hollow barrel is engaged with the heat sink element by the heat insulating ring.