WO2012055091A1 - Lampe à réflecteur à diodes électroluminescentes (del) - Google Patents

Lampe à réflecteur à diodes électroluminescentes (del) Download PDF

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Publication number
WO2012055091A1
WO2012055091A1 PCT/CN2010/078118 CN2010078118W WO2012055091A1 WO 2012055091 A1 WO2012055091 A1 WO 2012055091A1 CN 2010078118 W CN2010078118 W CN 2010078118W WO 2012055091 A1 WO2012055091 A1 WO 2012055091A1
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WO
WIPO (PCT)
Prior art keywords
led
reflector
light source
heat
reflector lamp
Prior art date
Application number
PCT/CN2010/078118
Other languages
English (en)
Chinese (zh)
Inventor
胡安华
Original Assignee
马士科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 马士科技有限公司 filed Critical 马士科技有限公司
Priority to PCT/CN2010/078118 priority Critical patent/WO2012055091A1/fr
Publication of WO2012055091A1 publication Critical patent/WO2012055091A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/777—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having directions perpendicular to the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/233—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F21V29/673—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for intake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to the field of lighting fixtures. More particularly, the present invention relates to an LED reflector lamp for use as a lighting fixture having good thermal conductivity and optical rotation, and having high luminous efficiency and uniform illumination. Background of the invention
  • LED As a kind of solid-state light source with great development potential, LED has been paid more and more attention since its birth in the 1960s due to its advantages of energy saving, environmental protection, long life, rich color and small size. Applied in various lighting fields.
  • the existing LED lamps for illumination generally have a plurality of LED light sources assembled to achieve the required brightness and power. The more LED light sources are assembled, the higher the brightness and power of the resulting LED lamps.
  • Cida patent Z99801548.2 discloses an LED lamp, which comprises installing a plurality of LED light sources on a regular polyhedral base, and the base and the connecting column, the threaded lamp cap, the lamp shell and the like constitute an LED lamp .
  • the LED lamp of the Chinese patent has made some improvements in heat dissipation and illumination improvement, the LED light sources of the LED lamp respectively face a plurality of orientations, and since there is no concentrating component, the light emitted from each LED light source cannot Effectively gathered, unable to meet the illumination angle required for adjustment, so that the utilization of emitted light is low; and a part is directly projected onto the assumed working surface, and since the LED light source faces outward, it may cause glare interference to humans. And because the human eye's vision can directly contact the LED light source, the strong light emitted by the LED light source may cause damage to the human eye.
  • the Chinese invention patent application 200910002486.1 filed by the present applicant discloses an LED reflector lamp in which a plurality of LED light sources are fixed on a heat conduction plate in parallel with a longitudinal axis of the heat conduction plate, and then constitute an LED with a reflector cup, a heat sink, and the like. Reflector light. Although the reflector lamp has good thermal conductivity and concentration, there is insufficient uniform illumination in the design. Summary of the invention
  • the object of the present invention is to overcome the above-mentioned shortcomings in the prior art, and to provide an improved LED reflector lamp, which has good thermal conductivity, heat dissipation, poly-rotation, uniform illumination, and the illumination angle can be adjusted. It also solves the problem that the human eye can directly contact the LED light source, and prevents the damage caused by the strong light emitted by the LED to the human eye.
  • the object of the present invention is achieved by the following technical solutions, and provides an LED reflector lamp, the LED reflector lamp comprising:
  • At least two LED light sources the LED light source being controlled by the control circuit;
  • At least two light source panels wherein the at least two LED light sources are respectively fixed on the at least two light source panels;
  • a reflector having a reflective inner surface, a reflective opening formed by the reflective inner surface edge, and a through groove formed at the bottom of the reflector;
  • the LED reflector lamp further includes:
  • thermally conductive column of a multi-faceted cylinder wherein the at least two light source panels are respectively thermally coupled to the surface of the heat guiding column;
  • a heat sink having a cavity internally provided, the cavity being sized and shaped to engage at least a portion of the bottom of the reflector such that a central vertical axis of the reflector is associated with the heat sink
  • the central vertical axis overlaps; and the heat conducting post is inserted into the interior of the reflector via a through slot at the bottom of the reflector and mounted on the heat sink such that the LED light source and the center of the reflector
  • the vertical axis is parallel or at an angle to the central vertical axis of the heat sink such that light emitted by the LED source is reflected off the reflective inner surface of the reflector.
  • the LED reflector lamp comprises:
  • the four LED light sources are respectively fixed on the four light source panels; wherein the heat conducting columns are six-sided cylinders, and four longitudinal surfaces of the six-sided cylinders have the same area,
  • the four light source panels are respectively fixed on the four longitudinal surfaces in a heat conductive manner, and the lower portion of the heat sink is annular, and the upper portion is sized to cooperate with the reflective cup so that the inner surface of the upper portion is The outer surfaces of the reflectors are completely in close contact.
  • the multifaceted cylinder may be a regular multifaceted cylinder or an irregular multifaceted cylinder, preferably a regular polygonal cylinder such as a cone, a cuboid, a cube, a trapezoidal cylinder, a prismatic cylinder or a cylinder.
  • the LED reflector lamp further includes a cooling heat sink for further dissipating heat generated by the LED light source.
  • the cooling heat sink may be selected from an electric fan, a pressurized gas injection device, an electronic heat exchanger, and mounted on a top surface or a side surface of the heat conducting column; or a coolant disposed in the heat conducting column.
  • a surface of each of the heat conducting columns is provided with a boss, and an outer surface of the boss is opposite to the heat conducting a slope of the column whose vertical axis is inclined upward or downward, wherein the light source panel is fixed on the inclined surface of the boss, so that the light emitted by the LED light source passes through the reflective inner surface or the lower portion of the upper portion of the reflector The inner surface of the reflection is reflected out to obtain beams of different angles to meet the needs of different lighting occasions.
  • a solid-source panel with an LED light source may be attached to the top surface of the heat-conducting column.
  • the LED light source can be fixed on the light source panel by dispensing or by any mechanical means, and the light source panel and the heat conducting column can pass fasteners, dispensing or adhesive heat-dissipating oil. Fixed together.
  • a heat dissipation oil layer is coated between the light source panel and the heat conducting column.
  • the reflector is designed in the shape of a horn, and the reflective inner surface of the reflector is parabolic and coated with a reflective material. And the upper part of the radiator is also made into a corresponding horn shape, which cooperates with the reflector.
  • the heat sink includes an upper portion and a lower portion, wherein the lower portion is annular and connected to the lamp cap of the LED lamp, and the upper portion is sized to cooperate with the reflector cup such that the inner surface of the upper portion is The outer surfaces of the reflectors are completely in close contact.
  • a plurality of fins parallel to and spaced apart from the central vertical axis of the reflector may be disposed on the outer surface of the heat sink to achieve a better heat dissipation effect.
  • the LED light source may be disposed near the bottom of the reflector or may be disposed adjacent to the reflector opening.
  • the light from the LED light source is reflected by the inner surface of the reflector, which can change the angle of the beam reflected by the reflector, which is beneficial to more occasions.
  • the heat conducting column is disposed such that its central vertical axis overlaps with a central vertical axis of the reflector and a central vertical axis of the heat sink, and a central vertical axis of the heat conducting column and an arc of the reflector The tangent of the intersection of the lines is vertical.
  • the heat conducting column, the heat sink and the reflector can be separate parts, or two or two of them can be integrally formed, or the three can be integrally formed.
  • the light source panel, the heat conducting column, the heat sink and the reflector cup are preferably made of a heat conductive material such as aluminum, aluminum alloy, ceramic or graphite.
  • the LED reflector lamp of the present invention has the characteristics of a PAR lamp, has a very high light effect and a good concentration of optical rotation. Therefore, the reflector opening portion may not be provided with a reflector cover, and of course, a reflector cover may be added as needed.
  • the LED light sources are mounted on the respective side surfaces of the heat transfer column at equal angular intervals, and the emitted light is reflected by the reflective inner surface of the reflector, so that good light rotation and uniformity can be obtained. Lighting effect.
  • the LED reflector lamp of the invention closely contacts the LED chip light source panel and the heat conducting column, and the heat conducting column and the heat sink are connected together, thereby forming a good heat conduction and heat dissipation path, and the heat emitted by the LED light source is passed through the light source.
  • the heat dissipation path of the heat-radiating column and the heat sink of the panel and the reflection cup are emitted, which reduces the temperature of the LED light source.
  • the glass reflector is not provided in the opening of the reflector, and A cooling heat sink is added on the heat conducting column, so that the LED light source can circulate with the air, which is beneficial to the heat dissipation, and can further reduce the heat generated when the LED emits light, thereby solving the problem of heating of the high-power LED reflector lamp, ensuring the LED.
  • heat has extended the life of LED reflector lamps.
  • Fig. 1 is a perspective view showing an LED reflector lamp according to a first embodiment of the present invention.
  • Fig. 2 is an exploded perspective view of the LED reflector lamp shown in Fig. 1.
  • Fig. 3 is a perspective view showing a heat conducting column used in the LED reflector lamp shown in Fig. 1.
  • Figure 4 is a perspective view of the thermally conductive column of Figure 3 with the light source panel to which the LED light source is attached secured to the four longitudinal surfaces of the thermally conductive column.
  • Fig. 5 is a schematic cross-sectional view showing the LED reflector lamp shown in Fig. 1.
  • Fig. 6 is a perspective view showing the LED reflector lamp of the second embodiment of the present invention.
  • Fig. 7 is a perspective view showing the LED reflector lamp of the third embodiment of the present invention.
  • Fig. 8 is a partially exploded perspective view showing the structure of the heat conducting column of the LED reflector lamp shown in Fig. 7.
  • Fig. 9 is a perspective view showing the LED reflector lamp of the fourth embodiment of the present invention.
  • Fig. 10 is a schematic cross-sectional view showing the LED reflector lamp shown in Fig. 9.
  • Fig. 11 is a perspective view showing the LED reflector lamp of the fifth embodiment of the present invention.
  • Fig. 12 is a schematic cross-sectional view showing the LED reflector lamp shown in Fig. 11. detailed description
  • the reflector lamp 100 includes four LED sources 60, four light source panels 20, a thermally conductive column 10, and a heat sink. 50.
  • the control circuit can alternatively be formed integrally with the LED reflector lamp in the cavity 52 of the heat sink 50, or can be formed separately from the LED with a plug connector for connection to the LED reflector lamp.
  • the control circuit is not the gist of the present invention and will not be described in detail herein.
  • the LED light source can be constructed from one or more LEDs.
  • the four LED light sources 60 are each composed of four chip LEDs and are respectively fixed on the four light source panels 20.
  • the LED light source 60 and the light source panel 20 can be glued together or fixed together in any known mechanical manner.
  • the light source panel 20 can be fastened, dispensed or have The viscous heat-dissipating oil is fixed to the heat-conducting column 10.
  • the light source panel 20 can be attached to the thermally conductive column 10 in any other manner known in the art, preferably to provide good thermal and thermal dissipation.
  • the heat conducting column 10 is a regular hexahedral cylinder, wherein the four longitudinal surfaces 14 have equal areas, and the four light source panels 20 to which the LED light source 60 is fixed are respectively fixed on the four surfaces. 14 on.
  • the light source panel 20 is directly adhered to the surface 14 of the heat conducting column by using a viscous heat-dissipating oil, so that good heat conduction and heat dissipation can be achieved.
  • the heat sink 50 is composed of a lower portion 52 adjacent to the screw base 40 and an upper portion 54 abutting against the reflector cup, wherein the lower portion 52 is annular, and the interior of the upper portion 54 is provided with a cavity 542, and the heat conducting column 10 is disposed in the inner cavity 542. It overlaps with the central vertical axis of the heat sink 50.
  • the bottom and lower portions 52 of the upper portion 54 define a receiving cavity 522 for receiving various electronic components of the LED reflector lamp, including control circuitry.
  • the upper portion 54 of the heat sink is flared and gradually increases from the bottom to the top opening.
  • a receiving portion 56 is disposed between the receiving cavity 522 and the upper cavity 542.
  • the supporting portion is centrally provided with a through hole 562.
  • the bottom of the heat conducting column is provided with a screw hole 12 at a position corresponding to the through hole 562.
  • the heat transfer post 10 is placed on the support portion 56 and the screw holes 12 of the heat transfer post 10 are aligned with the through holes 562 of the support portion 56, and the heat transfer post 10 can be locked to the support portion 56 by screws, as shown in FIG. .
  • the two can also be connected together by pluggable, or the heat sink 50 and the heat transfer column 10 are integrally formed, as will be apparent to those skilled in the art.
  • the surface of the inner cavity 542 of the heat sink 50 is designed in the shape of a horn that cooperates with the outer surface of the reflector 30 so as to abut against the outer surface 36 of the reflector 30 to facilitate dissipation of heat through the reflector 30.
  • a plurality of fins 58 are arranged on the outer surface of the upper portion and the lower portion of the heat sink 50 in parallel with and spaced apart from the center vertical axis. The heat sinks 58 are disposed so that the heat transferred from the heat conducting column 10 is good. Dissipate to achieve better heat dissipation.
  • the reflector cup 30 has a parabolic reflective inner surface 32, a reflective opening 38 formed by the edge of the reflective inner surface 32, and a through groove 34 formed in the bottom of the reflector, wherein the central vertical axis of the reflective opening 38 and the through slot 34 The center vertical axes overlap.
  • the reflector cup 30 is designed in the shape of a horn, has a smaller diameter at the bottom, and has a larger diameter toward the opening, thereby having the characteristics of a PAR lamp, and having higher light efficiency and better concentration of optical rotation.
  • the reflective inner surface 32 of the reflector 30 is a smooth paraboloid that can be plated with a bright reflective material to increase light efficiency.
  • the glass reflection mask is not disposed at the reflection opening, so that the chip LED can be connected to the atmosphere, which is more favorable for heat dissipation, thereby further reducing the heat generated when the LED emits light.
  • the material used for the lampshade may be glass, polycarbonate (PC), polyester (PET) or polymethyl methacrylate (PMMA).
  • the shape and size of the channel 34 is just The thermally conductive post 10 is mounted through the through slot 34 on the support portion 56 of the heat sink such that the LED light source 60 secured to each surface 14 of the thermally conductive post is parallel to the central vertical axis of the reflector 30. More preferably, the thermally conductive column 10 is disposed such that its central vertical axis overlaps the central vertical axis of the reflector 30 and the central vertical axis of the heat sink 50.
  • the four chip LEDs arranged on each of the light source panels 20 are in the same In a vertical plane, the light they emit can be uniformly illuminated onto the reflective inner surface 32 of the reflector 30 and reflected off the reflective opening 38. It has been found that light reflected off the reflective inner surface 32 of the reflector can be effectively and evenly concentrated to achieve illumination brightness.
  • the light source panel 20 can be designed such that the LED light source 60 is closer to the bottom through-groove 34 of the reflector 30, or can be designed to be closer to the reflective opening 38 of the reflector.
  • the beam angle of the LED reflector lamp of the present invention can be controlled to a range of 10 to 60 degrees.
  • the thermally conductive column 10, the heat sink 50 and the reflector cup 30 can be three separate sections that are fixed together by plugging to form a good thermal contact.
  • the three portions may also be integrally formed in two, that is, the heat conducting column 10 and the heat sink 50 are integrally formed, or the heat conducting column 10 and the reflector cup 30 are integrally formed, or the heat sink 50 and the reflector cup 30 are integrally formed.
  • the heat conducting column 10, the heat sink 50 and the reflector cup 30 can also be integrally formed.
  • the light source panel 20, the heat conducting column 10, the heat sink 50, and the reflector cup 30 are preferably made of a thermally conductive material such as aluminum, aluminum alloy, ceramic or graphite.
  • FIG. 6 is a perspective view of a LED reflector lamp according to a second embodiment of the present invention.
  • This embodiment is basically the same as the structure of the first embodiment, and the heat conducting column 210 is still a regular hexahedral cylinder, wherein the four longitudinal surfaces 214 have equal areas, the main difference being: the LED reflector lamp of the present embodiment has 8 light source panels 220, correspondingly, 8 LED light sources 260, each LED light source is respectively fixed on a light source panel; each longitudinal surface 214 of the heat conducting column 210 is fixed with two straight lines in the vertical direction The light source panel 220 is arranged.
  • the number of the light source panel 220 and the chip LED light source 210 may be increased on each surface of the heat conducting column as needed, or the light source panel to which one or more LED light sources are fixed may be mounted on the top surface of the heat conducting column 210.
  • the structure of the heat sink 250 is substantially the same as that of the first embodiment. In this embodiment, since a plurality of LED chip light sources are added, an LED reflector lamp having a large power can be obtained.
  • FIG. 7 and 8 are a perspective view and an exploded view of an LED reflector lamp according to a third embodiment of the present invention.
  • This embodiment is basically the same as the structure of the first embodiment, and includes an LED light source 360, a light source panel 320, and a heat conducting column. 310, reflector 330, heat sink 350, the main difference is that: a cooling heat sink is mounted on the top surface 316 of the heat conducting column 310 of this embodiment.
  • the cooling heat sink is a small fan 340.
  • the small fan 340 includes a central circular shaft 346, a plurality of fan blades 342 disposed around the central circular shaft 346, and a square fan outer frame 344.
  • the central circular shaft 346, the fan blade 342 and the fan outer frame 344 of the present embodiment are integrally formed, and of course, they may be fixed together by means of fasteners, dispensing, or the like.
  • the two opposite corners of the fan frame 344 are respectively provided with a screw hole 348.
  • the corresponding position of the heat-radiating column top surface 316 is provided with a screw hole 312, and the screw holes 348 and 312 are aligned, and the screw 370 can be used.
  • the fan 340 is locked on the top surface of the heat conducting column 310.
  • the fan 340 can generate a flow of air, and the heat generated by the illumination of the LED light source is quickly dissipated into the air, further reducing the temperature of the LED light source.
  • the central vertical axis of the fan 340 overlaps with the central vertical axis of the heat conducting column 310, and the LED reflector lamp obtains a better cooling and dissipating effect.
  • the cooling heat sink can also be in other forms, such as a pressurized gas injection device, an electronic heat exchanger, or a coolant filled in the heat conducting column to heat the heat generated by the LED light source by heat exchanger or by liquid convection. go.
  • the cooling heat sink is provided, the heat generated by the LED light source can be quickly dissipated, thereby improving the heat dissipation effect, and thus the power of the LED reflector lamp can be made larger.
  • the LED reflector lamp 400 of the present embodiment has substantially the same structure as that of the first embodiment, and the main difference is that: on each of the four longitudinal surfaces of the heat conducting column 410 of the embodiment, a boss 412 is provided, the protrusion
  • the stage 412 has a triangular cross section and an outer surface that is a slope 414 that slopes upward toward a central vertical axis of the thermally conductive column.
  • a light source panel 420 having an LED light source 460 is attached to the slope 414 such that the central vertical axis of the LED light source 460 is at an angle R1 to the central vertical axis of the thermally conductive column 410, as shown in FIG.
  • the size of the R1 angle can be designed according to the actual needs of the combination of the shape and size of the boss and the heat-conducting column to obtain different large beam angles to meet the needs of more lighting applications.
  • 11 and 13 show an LED reflector lamp 500 as a fifth embodiment of the present invention.
  • the structure of the LED reflector lamp is similar to that of the LED reflector lamp 400 of the fourth embodiment described above, except that the slope 514 of the boss 512 is inclined downward toward the central vertical axis of the heat conducting column so as to be fixed to the light source panel 520.
  • the central vertical axis of the upper LED light source 560 is at an angle R2 to the central vertical axis of the thermally conductive column 510, as shown in FIG.
  • This design allows the light from the LED source to be reflected off the inner paraboloid of the bottom of the reflector, resulting in a smaller beam angle for better concentrating and higher luminous flux.
  • the size of the R2 angle can be designed according to the actual needs by the combination of the shape and size of the boss and the heat conducting column. Different small beam angles.
  • the LED reflector lamp of the invention closely adheres the LED light source to the light source panel, and the light source panel forms a heat conduction connection with the heat conducting column, thereby forming a good heat conduction and heat dissipation path of the light source panel-heat conducting column-heat sink.
  • the heat generated by the LED light source is quickly dissipated through the heat dissipation path, which reduces the temperature of the LED light source, thereby effectively solving the heat dissipation problem of the LED lamp.
  • the reflector has an opening, and a cooling and cooling device is provided, which is more conducive to heat dissipation.
  • the LED light source is mounted in the center of the reflector in a manner parallel to the central vertical axis of the reflector or at an angle, so that the light emitted by the LED can be reflected out through the inner surface of the reflector, forming a good poly-rotation and avoiding the cause. Damage to the human eye caused by direct contact with the LED light source.
  • the obtained LED light source When the LED light source is disposed at a groove near the bottom of the reflector, the obtained LED light source emits a small angle of light reflection. When the LED light source is disposed at an opening near the top of the reflector, the obtained LED light source emits a large angle of light reflection. In this way, the size of the illumination angle of the LED reflector can be adjusted. In addition, the provision of a boss on the surface of the thermal column can also adjust the beam angle of the LED reflector for a wider range of applications.
  • the surface of the regular multi-faceted cylinder is increased, for example, 6 or 7, or even more; or the light source panel fixed on each surface of the heat-conducting column and the LED light source fixed to the light source panel are added. The number, or both of which can be changed at the same time, can be made into a series of high-power LED reflector lamps for a wider range of applications.
  • the present invention provides an LED reflector lamp, which not only effectively solves the heat dissipation problem of the high-power LED, but also greatly improves the luminous flux and luminous efficiency of the LED, and obtains a more continuous and uniform illumination effect.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L'invention porte sur une lampe à réflecteur à diodes électroluminescentes (DEL), laquelle lampe comprend un circuit de commande, au moins deux sources de lumière à diodes électroluminescentes (DEL) (60), au moins deux panneaux de source de lumière (20) fixés aux au moins deux sources de lumière à diodes électroluminescentes (DEL) (60), une coupelle réfléchissante (30) ayant une surface interne réfléchissante, une ouverture réfléchissante et une fente formée en bas de la coupelle réfléchissante (30), une colonne conduisant la chaleur (10), qui est une colonne polyédrique sur la surface de laquelle les au moins deux panneaux de source de lumière (20) sont fixés thermiquement, respectivement, et un dissipateur de chaleur (50) qui a une cavité, la cavité étant dimensionnée et formée de façon à être couplée à au moins une partie du bas de la coupelle réfléchissante (30). La colonne conduisant la chaleur (10) est insérée dans l'intérieur de la coupelle réfléchissante (30) par l'intermédiaire d'une fente formée en bas de la coupelle réfléchissante (30), et est disposée sur le dissipateur de chaleur (50), de telle sorte que l'axe vertical central des sources à diodes électroluminescentes (DEL) (60) et de la coupelle réfléchissante (30) et l'axe vertical central du dissipateur de chaleur (50) sont parallèles ou en angle. La conductivité thermique, la dissipation de chaleur et l'uniformité d'éclairage de la lampe à réflecteur à diodes électroluminescentes (DEL) sont bonnes. L'angle d'éclairage peut être réglé selon les besoins.
PCT/CN2010/078118 2010-10-26 2010-10-26 Lampe à réflecteur à diodes électroluminescentes (del) WO2012055091A1 (fr)

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PCT/CN2010/078118 WO2012055091A1 (fr) 2010-10-26 2010-10-26 Lampe à réflecteur à diodes électroluminescentes (del)

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PCT/CN2010/078118 WO2012055091A1 (fr) 2010-10-26 2010-10-26 Lampe à réflecteur à diodes électroluminescentes (del)

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CN103982824A (zh) * 2014-05-28 2014-08-13 昆山生态屋建筑技术有限公司 一种带有半球形扩散罩且角度可调的射灯
CN103982823A (zh) * 2014-05-28 2014-08-13 昆山生态屋建筑技术有限公司 一种灯头散热体上设置有通风孔的射灯
CN103982822A (zh) * 2014-05-28 2014-08-13 昆山生态屋建筑技术有限公司 一种导热柱上设置有风扇的射灯
CN103982826A (zh) * 2014-05-28 2014-08-13 昆山生态屋建筑技术有限公司 一种导热柱上设置有半导体制冷片的射灯
CN104033798A (zh) * 2014-06-25 2014-09-10 昆山天重星光电科技有限公司 一种带有球形扩散罩的射灯
US20150003074A1 (en) * 2013-03-15 2015-01-01 Nathan Howard Calvin Lighting Fixture
DE102015216662A1 (de) * 2015-09-01 2017-03-02 Osram Gmbh Leuchtmittel mit LEDs

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CN201103806Y (zh) * 2007-09-03 2008-08-20 廖钦彬 发光二极管灯具
CN101373064A (zh) * 2007-08-24 2009-02-25 富准精密工业(深圳)有限公司 发光二极管灯具
CN201246614Y (zh) * 2008-07-16 2009-05-27 沈李豪 一种led灯泡
CN101655187A (zh) * 2008-12-17 2010-02-24 马士科技有限公司 Led反射灯

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CN101373064A (zh) * 2007-08-24 2009-02-25 富准精密工业(深圳)有限公司 发光二极管灯具
CN201103806Y (zh) * 2007-09-03 2008-08-20 廖钦彬 发光二极管灯具
CN201246614Y (zh) * 2008-07-16 2009-05-27 沈李豪 一种led灯泡
CN101655187A (zh) * 2008-12-17 2010-02-24 马士科技有限公司 Led反射灯

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150003074A1 (en) * 2013-03-15 2015-01-01 Nathan Howard Calvin Lighting Fixture
US9068724B2 (en) 2013-03-15 2015-06-30 Nathan Howard Calvin Lighting fixture having clipped reverse parabolic reflector
CN103982824A (zh) * 2014-05-28 2014-08-13 昆山生态屋建筑技术有限公司 一种带有半球形扩散罩且角度可调的射灯
CN103982823A (zh) * 2014-05-28 2014-08-13 昆山生态屋建筑技术有限公司 一种灯头散热体上设置有通风孔的射灯
CN103982822A (zh) * 2014-05-28 2014-08-13 昆山生态屋建筑技术有限公司 一种导热柱上设置有风扇的射灯
CN103982826A (zh) * 2014-05-28 2014-08-13 昆山生态屋建筑技术有限公司 一种导热柱上设置有半导体制冷片的射灯
CN104033798A (zh) * 2014-06-25 2014-09-10 昆山天重星光电科技有限公司 一种带有球形扩散罩的射灯
DE102015216662A1 (de) * 2015-09-01 2017-03-02 Osram Gmbh Leuchtmittel mit LEDs
US10386056B2 (en) 2015-09-01 2019-08-20 Ledvance Gmbh Illuminant with LEDs

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