WO2010115347A1 - 一种led照明灯具 - Google Patents

一种led照明灯具 Download PDF

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Publication number
WO2010115347A1
WO2010115347A1 PCT/CN2010/000463 CN2010000463W WO2010115347A1 WO 2010115347 A1 WO2010115347 A1 WO 2010115347A1 CN 2010000463 W CN2010000463 W CN 2010000463W WO 2010115347 A1 WO2010115347 A1 WO 2010115347A1
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WO
WIPO (PCT)
Prior art keywords
light
led
light source
led chip
film
Prior art date
Application number
PCT/CN2010/000463
Other languages
English (en)
French (fr)
Inventor
肖志国
李茂龙
常英
隋玉龙
戴兴建
吴粤宁
张宏伟
Original Assignee
大连路明发光科技股份有限公司
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 大连路明发光科技股份有限公司 filed Critical 大连路明发光科技股份有限公司
Publication of WO2010115347A1 publication Critical patent/WO2010115347A1/zh

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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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • 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
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • 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
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • 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
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like 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 present invention relates to an LED lighting fixture, and more particularly to a high-brightness surface light source realized by an integrated LED chip light source device and a light conversion film having a special chip arrangement, which can be used for indoor lighting LED lamps.
  • LED luminaires can be used to generate various color effects through computer programming, and have excellent visual effects in individualized lighting effects, advertising, lighting and lighting projects. Therefore, LEDs are gradually replacing incandescent lamps as new sources of illumination.
  • LED lamps used in the field of illumination are mostly used as light sources for light source illumination. Through the lamps, the point light source can be clearly seen and glare is generated. If used for a long period of time, it is easy to cause visual fatigue or even decreased vision.
  • LED lamps generally have a large amount of heat generated by a single LED, which causes a problem of reduced life.
  • the heat sink In order to solve the problem of heat dissipation, the heat sink generally adopts a heat-dissipating effect, controllable cost, and relatively simple processing of die-cast aluminum fan-fin structure, printed circuit
  • the board uses a printed circuit of a metal core, such as an aluminum substrate or a copper substrate.
  • the existing LED lamps are mainly packaged on the LED chip by using the phosphor mixed dispensing, this not only causes the heat dissipation of the lamp to be poor, but also causes the LED chip and the phosphor to have a faster aging speed and higher light attenuation.
  • the luminous efficiency is low; this packaging process also has the disadvantages of inconsistent brightness and poor uniformity between the white LEDs.
  • the overall lamp is prone to glare, and the color of the color lamp mainly depends on the color of the LED itself. The color must be replaced by the LED. LED itself is not uniform in brightness, color Inconsistent in terms of duration.
  • the patent CN101179102A proposes to close the outer periphery of the LED chip with a gas instead of the epoxy resin, and the convection generated by the gas rapidly conducts heat out of the lamp cover, and the bottom of the LED chip directly contacts the cup body, overcoming the prior art.
  • the middle LED chip has the disadvantage of poor heat transfer effect by the contact of the glue with the bottom of the cup, so that the heat dissipation effect is excellent.
  • patent CN200993322 uses glass, plastic, film and other carriers, combined with phosphor to form special materials, and uses blue LED light source. Excitation is performed to improve the above optical problems to some extent.
  • the number of LEDs is small, the brightness of the type of lamp is low; the combination of phosphor and glass and plastic increases the phosphor content, which increases the cost of the lamp; in addition, the combination of the light source and the three materials limits the LED.
  • the size of the luminaire is also difficult to achieve good lighting and optical effects.
  • Patent CN101533882A provides a method for encapsulating a phosphor pre-formed film for a white LED, and the phosphor and the binder are screen-printed to form a single LED package, which solves the problem in the dispensing method.
  • the problem of poor consistency of light emission between the same batch and different batches eliminates the sorting process in the dispensing process, but the screen printing process ⁇ > achieves high precision requirements for LED light color, and is not easy to form a film uniformly. Screen printing also cannot achieve large-volume roll-forming film, which limits the use of such film.
  • the patent also mentions the use of the pre-formed film to manufacture LED full-lamps, since the phosphor film is directly attached to the lamp.
  • the patent US20060289884A1 and US20080206910A1 provide a method for manufacturing an LED lamp by using a shrinkable film package, which largely solves the disadvantages of inconsistent brightness, poor uniformity, easy deviation of color temperature and poor color rendering of white LED lamps, but in the patent
  • the film used for rolling is a shrink film obtained by calendering. Since extrusion molding is required in the film forming process, the luminescent property of the luminescent material is somewhat reduced; and the heat-shrinkable film is also complicated in preparation process, and its luminescence is complicated.
  • the material of the film is made of polyvinyl chloride, polyethylene and polypropylene, which determines the aging performance of the film is not good.
  • shrinkable film due to the use of such shrinkable film, it is necessary to first make the LEDs into a lamp point, resulting in complicated preparation process of the LED lamp. .
  • Patent US20080142816A1 manufactures a white light point source with adjustable color temperature, which uses a plurality of LED chips and wavelength conversion units having slightly different pump wavelengths to control the generated light by changing the intensity of light generated by the LED chip.
  • White light point since the same type of LED chip is used, a plurality of LED chips can be closely placed on one or more of the bases to form a compact high-brightness design.
  • the white LED light source produced by the patent the LED chip is closely located on the base. Due to the high density and the multi-layer structure of the base, the heat generated by the chip lighting cannot be effectively exported, which will shorten the service life of the LED.
  • the invention combines the light conversion film with good aging performance and the integrated LED chip light source device, so that the LED chip is distributed on the metal printed circuit board with concave surface, and the arrangement manner adopts multiple rows, adopting a misaligned equilateral triangle, and the side length is 5mm ⁇ 0.5mm, the light conversion film is 0.6-0.8mm away from the light-emitting surface of the chip, realizing a high-luminance surface light source, effectively solving the above problems and other problems.
  • the misaligned equilateral triangle can compensate for the difference of light output between different angles of the LED chip, so that the multi-chip combination LED can achieve the highest light-emitting efficiency, and the surface light source can be realized under the 5mm spacing, and the unit area can be guaranteed.
  • the low heat generation, and the existing LED light source products are mainly based on the parallel arrangement of LED chips, the light output is uneven, the direction of light intensity is stronger, the angle of light weakness cannot be improved, and the spacing is up to 5mm.
  • the light-converting film maintains a distance of 0.6-0.8 mm from the light-emitting surface of the chip, which can effectively improve the aging problem when the currently widely used light-converting material is tightly combined with the chip, and the spacing can also be used for the blue LED light. It plays a role of light expansion, better realizes the effect of surface light source, and avoids the loss of light from excessive distance.
  • the LED chip is solid crystal on the substrate of the concave metal circuit board. This structure will greatly reduce the thermal resistance of the light source, and the heat generated by the LED can be quickly transferred to the metal substrate, thereby avoiding the influence of the excessive junction temperature on the service life of the LED.
  • the light conversion film of the present invention is composed of a diffusion film and a mixed coating layer thereon, and the mixed coating layer is composed of a yellow luminescent fluorescent material and/or a red luminescent fluorescent material, a polymer resin, a diamino silane, a drier and a helper.
  • the composition of the agent wherein: the yellow luminescent fluorescent material is used as a blue light LED 3 ⁇ 4JC with an emission spectrum peak wavelength in the range of 440 ⁇ 475 nm, and absorbs at least one emission spectrum with a peak wavelength in the range of 525 ⁇ 580 nm. ;
  • the red luminescent fluorescent material is used as a blue light LED of an excitation light source having a peak wavelength in the range of 440 to 475 nm, and absorbs at least one emission spectrum having a peak wavelength in the range of 580 to 650 nm;
  • the light emitted by the yellow luminescent fluorescent material and the red luminescent fluorescent material is combined with the light emitted by the blue LED to form white light.
  • the object of the present invention is to provide an LED lighting fixture with uniform light color and no glare, and the LED lighting fixture has a high color rendering index and different color temperatures, and can be applied in various occasions.
  • An LED lighting fixture comprising a heat sink, an integrated LED chip light source device, a light conversion film, a lamp cover and a power source, wherein the heat sink has a groove, the integrated LED chip light source device is located in the groove of the heat sink, and the light conversion film is placed Integrated LED chip light source Above the piece, tiled on the LED chip, the lamp cover is over the light conversion film and fixed on the heat sink, and the LED chip integrated with the LED chip light source device is distributed on the concave metal printed circuit board substrate, and arranged Multi-row, adopting misaligned equilateral triangle, the side length is optimally 5mm ⁇ 0.5mm, and the light conversion film is 0.6-0.8mm away from the chip emitting surface height to realize high-brightness surface light source.
  • the recessed surface of the metal printed circuit board in the integrated LED chip light source device does not contain an insulating layer, and the LED chip is directly fixed on the concave metal substrate.
  • An integrated LED chip light source device surrounds the reflective dam formed by the inner wall of the recess of the heat sink. .
  • the radiator groove is filled with transparent silicone or transparent epoxy resin.
  • the light conversion film contains a fluorescent material that can be effectively excited by blue light.
  • the polymer resin contained in the light conversion film is a silicone resin.
  • the light conversion film can be emitted by the blue LED chip to emit one of yellow-green, yellow, orange or red light.
  • the LED lamp of the present invention by combining a light conversion film having a light conversion function and an integrated chip light source device, the light color of the illumination lamp is uniform, and the color range, color rendering property and purity are both large.
  • the increase in the amplitude has also fundamentally improved the glare of traditional lamps.
  • the LED lighting fixture of the present invention by combining a light conversion film having a light conversion function and an integrated chip light source device, full color and white light can be realized, which is convenient for color temperature adjustment, and has light conversion by simple replacement.
  • the function of the light conversion film can realize the conversion of a plurality of colors, which simplifies the manufacturing process of the lamp, thereby reducing the cost and facilitating the promotion.
  • the invention adopts a substrate with a concave metal circuit board, and the insulating layer is removed. This structure will greatly reduce the thermal resistance of the light source, and the heat generated by the LED can be quickly transmitted to the metal substrate, thereby avoiding the junction temperature being too high for the LED. The impact of the service life. 4.
  • the heat sink since the heat sink has a groove, this is equivalent to adding a heat dissipation channel to the LED light source, so that the generated heat can be quickly dissipated into the air, improving the tradition.
  • the problem of poor heat dissipation of white light fixtures improves the service life of the lamps.
  • the preparation method of the LED lamp provided by the invention is the surface film of the LED chip, the manufacturing process is simple, the LED lamp has high luminous efficiency, and the fluorescent aging attenuation phenomenon of the direct dispensing of the phosphor on the LED chip is also improved.
  • the misaligned equilateral triangle arrangement of the LED chip of the invention can compensate for different light exiting between different angles of the LED chip, so that the multi-chip combination LED has the highest light-mixing light-emitting efficiency, and the LED light spacing can be maximized while reaching the light-emitting surface light source. Therefore, the local temperature caused by the tight arrangement of the LEDs is reduced, which affects the service life of the LED.
  • the light conversion film used in the present invention is made of a silicone resin material, and has excellent aging properties.
  • the LED chip Around the LED chip is a reflective dam filled with transparent epoxy or transparent silica gel, which can illuminate the light scattered to the side. At the same time, the transparent light resin is also included in the groove to eliminate the air, which improves the light efficiency of the LED lamp.
  • the surface of the printed circuit board is a white reflective layer that reflects the light that strikes the surface of the board, improving the efficacy of the LED fixture.
  • FIG. 2 Schematic diagram of LED lighting fixture (power supply is not connected) -
  • the upper edge of the light conversion film is flush with the groove (the groove of the heat sink is the card slot)
  • FIG. 3 Schematic diagram of LED lighting fixture (power supply is not connected) - light conversion film upper edge is flush with the groove
  • FIG 4 Integrated LED chip light source device chip arrangement and conversion film structure (multiple rows)
  • Figure 5 Schematic diagram of LED lighting fixture - light conversion film placed on the groove (downlight)
  • 6 to 11 are schematic views showing the structure of the lighting device. 2 an integrated LED chip light source device
  • B1 luminescent film with light conversion function
  • B2 lamp cover
  • B3 LED lens
  • B4 light emitting diode
  • B5 printed circuit board
  • the present invention combines a light conversion film with an integrated LED chip light source device to form an LED lighting fixture.
  • the blue LED chip is fixed and wired on a commercially available printed circuit board (PCB) in a double row, using a misaligned equilateral triangle with a side length of 5 mm ⁇ 0.5 mm. It is connected with the circuit on the circuit board to form the integrated LED chip light source device 2, and then the printed circuit board connected with the LED chip is inserted into the aluminum profile heat sink card slot 1 with the card slot, and the luminescent material and the polymer resin are coated.
  • PCB printed circuit board
  • the method of cloth is used to form the light conversion film 3, and then the finished light conversion film 3 is pasted onto and flush with the card slot, and the light conversion film is 0.6-0.8 mm from the height of the chip light emitting surface, in another embodiment
  • the prepared light conversion film 3 is flatly attached to the groove of the heat sink as shown in FIG.
  • the transparent material of the lampshade 4 is covered, and a filling material is injected into the radiator card slot (groove), and the filling material may be transparent silica gel. Or transparent epoxy resin.
  • a high-intensity surface light source is formed for replacing the strip lamp illumination. Referring further to FIG.
  • the blue LED chip is fixedly bonded on a commercially available printed circuit board (PCB) in a plurality of rows, using a misaligned equilateral triangle with a side length of 5 mm ⁇ 0.5 m.
  • the integrated LED chip light source device 2 is connected with the circuit on the circuit board, and then the printed circuit board connected with the LED chip is flatly attached to the heat sink 1, and the luminescent material and the polymer resin are coated by light.
  • the light conversion film is 0.6-0.8 mm away from the light emitting surface of the chip, and then fixing the circular lamp cover 4 of the transparent material to the lamp housing
  • the filling material is injected into the radiator card slot, and the filling material may be transparent silica gel or transparent epoxy resin.
  • the external power source 5 is connected to form a high-brightness surface light source for the purpose of planar illumination.
  • the invention can be applied to various LED lighting fixtures such as LED fluorescent lamps and LED downlights.
  • the present invention also provides an LED lighting device which can improve the uniformity and anti-glare property of various white light fixtures, and has a higher color rendering index, which is convenient for color conversion and application of the lamp.
  • An LED lighting device comprising a heat dissipating support structure, a printed circuit board, a light source and a lamp cover in order from bottom to top, or an LED lens disposed on the light source, wherein the LED lighting device is provided with a light emitting film having a light conversion function (ie, a light conversion film), the light emitting film is located between the light source and the lamp cover or above the lamp cover; if an LED lens is disposed on the blue LED point light source, the light emitting film may be located between the light source and the lamp cover or above the lamp cover. Directly attached to the upper surface of the LED lens.
  • a light emitting film having a light conversion function ie, a light conversion film
  • the light source is one or more blue LED point light sources; according to the design and use requirements of the LED lighting device, the light emitting film having the light conversion function can be placed at a specific position. In order to improve the uniformity of the overall color of the LED lighting device, color rendering and glare.
  • the luminescent film having a light conversion function is a film containing a fluorescent material, and has a thickness of 30 to 200 ⁇ m;
  • the luminescent film having a light conversion function is attached to a surface of the blue LED
  • the LED illumination device has a lens structure
  • the light-emitting film having the light conversion function can be directly attached to the LED.
  • the upper surface of the lens in addition to attaching the light-emitting film having the light conversion function to the surface of the blue LED, the inner surface of the lamp cover, and the outer surface of the lamp cover, the light-emitting film having the light conversion function can be directly attached to the LED.
  • the upper surface of the lens in addition to attaching the light-emitting film having the light conversion function to the surface of the blue LED, the inner surface of the lamp cover, and the outer surface of the lamp cover
  • the light-emitting film with light conversion function is excited by blue light emitted by a blue LED point light source to emit white, red, orange, yellow, yellow-green, cyan, green, purple or purple-red light;
  • the light-emitting film having the light conversion function is printed with a circular, circular, fan-shaped, triangular, pentagonal, animal, plant, cartoon pattern or irregular geometric pattern; the light-emitting film having the light conversion function is completely attached to the lamp cover Or a light source; the light-emitting membrane having a light-converting function is cut into a circle, a ring, a fan, a triangle, a five-pointed star, an animal, a plant, a cartoon pattern or an irregular geometric pattern to be attached to a lampshade or a light source;
  • the light-emitting film having the light conversion function may be respectively attached to the surface of the blue LED point light source; or a part of the point light sources may be attached to the light according to the design pattern of the illumination device.
  • the film, another part of the point source does not adhere to the illuminating film, so that the illuminated LED illuminating device emits different colors and patterns.
  • the LED lighting device has a plurality of blue LED point light sources
  • the lighting device includes a lens, and the light-emitting film having the light conversion function can be attached to the surface of the LED lens; or a part of the LED lens is attached to the light-emitting film according to the design pattern of the illumination device, and the other part of the LED lens is not attached to the light-emitting film.
  • the illuminated LED lighting device is illuminated with different colors and patterns.
  • the LED lighting device of the present invention enables light emitted from a blue LED light source to pass through a light-emitting film having a light-converting function and to excite its light.
  • the luminescent film with light conversion function of various colors is excited by the light of 440 ⁇ 475nm emitted by the blue light source, and emits light with a peak wavelength of 440 ⁇ 640nm, such as red, orange, yellow, yellow green, blue green. , green, purple or purple-red light; when a yellow light-emitting film having a light-converting function is used, the light-emitting film is excited to emit yellow light and the remaining blue light transmitted through the light-converting film is combined into white light.
  • the structure of the illumination device using the luminescent film will be further described below in conjunction with the embodiments.
  • the illuminating device in this embodiment comprises a heat dissipating support structure, a printed circuit board, a light source and a lamp cover in order from bottom to top;
  • the light source is a blue LED
  • the yellow light emitting film with the light conversion function is attached to the blue LED.
  • On the upper surface. The blue light emitted by the blue LED excites the yellow light-emitting film having a light-converting function to generate yellow light, which is combined with the remaining blue light transmitted through the yellow light-emitting film to generate white light.
  • the lighting device described in this embodiment can be widely applied to various types of LED lamps such as wall washers, floodlights, underground lamps, landscape lamps, spotlights, lamp lamps, and commercial residential lamps.
  • Example 2
  • the illuminating device in this embodiment comprises a heat dissipating support structure, a printed circuit board, a light source and a lamp cover in order from bottom to top;
  • the light source is 20 blue LED light sources, and the red light emitting film with light conversion function is attached to the blue LED.
  • the red luminescent film having the light conversion function is excited by the blue light emitted by the blue LED to generate red light.
  • the lighting device described in this embodiment can be widely applied to existing tunnel lights and washing Wall lights, floodlights, underground lights, landscape lights, spotlights, commercial residential lights, etc.
  • the illumination device in this embodiment is as shown in FIG. 8 , and its structure includes a heat dissipation support structure B6, a printed circuit board B5, a light source, an LED lens B3 and a lamp cover B2 in order from bottom to top; the light source is 10 blue LEDs B4, which will
  • the violet light-emitting film B1 having the light-converting function is attached to the inner surface of the entire lampshade B2, and is closely fitted and pressed to form a complete lighting device.
  • the light emitted by the blue LED B4 excites the violet light-emitting film Bl having a light-converting function to emit violet light.
  • the lighting device described in this embodiment can be widely applied to various types of LED lamps such as existing wall washers, floodlights, buried lamps, landscape lamps, spotlights, lamp lamps, and commercial residential lamps.
  • the illumination device in this embodiment is as shown in FIG. 7 , and its structure includes a heat dissipation support structure B6, a printed circuit board B5, a light source, an LED lens B3 and a lamp cover B2 in order from bottom to top; the light source is 10 blue LEDs B4, which will
  • the green light-emitting film B1 having the light-converting function is attached to the outer surface of the entire lampshade B2, and is closely fitted and pressed to form a complete lighting device.
  • the light emitted by the blue LED B4 excites the green light-emitting film Bl having a light-converting function to emit green light.
  • the lighting device described in this embodiment can be widely applied to various types of LED lamps such as existing wall washers, floodlights, buried lights, landscape lights, spotlights, and commercial residential lighting.
  • Example 5
  • the illumination device in this embodiment is as shown in FIG. 6, and its structure includes a heat dissipation support structure B6, a printed circuit board B5, a light source, an LED lens B3 and a lamp cover B2 in order from bottom to top; the light source is 30 blue LEDs B4, each The blue LED B4 is provided with an LED lens B3, and the yellow-green light-emitting film B1 having the light conversion function is attached on the upper surface of the LED lens B3; the blue light emitted by the light source first passes through the LED lens B3. After passing through the yellow-green light-emitting film B1 having the light-converting function, the yellow-green light generated is then emitted to the outside through the lampshade B2 to achieve the illumination effect.
  • the lighting device of this embodiment can be widely applied to various types of lamps such as existing wall washers, floodlights, buried lights, landscape lights, spotlights, and commercial residential lighting.
  • Example 6
  • the lighting device in this embodiment is as shown in FIG. 10, and its structure is sequentially arranged from bottom to top, the thermal support structure B6, the printed circuit board B5, the light source and the lamp cover B2; the light source is 10 blue LEDs B4, first having The blue-green light-emitting film B1 of the light conversion function is printed with a pattern (can print various patterns of animals, plants, cartoons, or regular or irregular geometric patterns such as rings, sectors, pentagrams, triangles, etc.), and then paste the surface thereof.
  • the inner surface of the entire lampshade B2 is tightly fitted and pressed to form a complete lighting device.
  • the light emitted by the blue LED B4 excites the blue-green light-emitting film B1 having a light-converting function to emit blue-green light.
  • the lighting device described in this embodiment can be widely applied to various types of LED lamps such as existing wall washers, floodlights, buried lamps, landscape lamps, spotlights, lamp lamps, and commercial residential lamps.
  • the illumination device in this embodiment is as shown in FIG. 11, and its structure includes a thermal support structure B6, a printed circuit board B5, a light source and a lamp cover B2 from bottom to top; the light source is 100 blue LEDs B4, which will have a light conversion function.
  • the yellow light-emitting film B1 is attached to the upper surface of each of the blue LEDs B4. The blue light emitted by the blue LED B4
  • the yellow light emitting film B1 having the light conversion function generates yellow light, which is combined with the remaining blue light transmitted through the yellow light emitting film to generate white light.
  • the lighting device described in this embodiment can be widely applied to various types of LEDs such as high-power LED street lamps, wall washers, floodlights, underground lamps, landscape lamps, spotlights, lights, commercial residential lamps, and the like. Lighting.
  • Example 8 The illumination device in this embodiment is as shown in FIG. 9 , and its structure includes a heat dissipation support structure B6, a printed circuit board B5, a light source and a lamp cover B2 in order from bottom to top; the light source is 16 blue LEDs B4, and the first pair has light conversion
  • the function of the purple-red light-emitting film B1 is geometrically patterned, such as: circular, square, triangular, etc., and then the die-cut light-emitting film B1 is attached to the outer surface of the lampshade B2 to form Complete lighting fixture.
  • the blue light emitted by the blue LED B4 passes through the shade B2 through the purple-red light-emitting film B1 with light conversion function, and the surface of the die-cut geometric pattern emits blue light, and the other surface emits purple-red light to form a unique color illumination decoration. effect.
  • the lighting device described in this embodiment can be widely applied to various types of LED lamps such as tunnel lamps, wall washers, floodlights, underground lamps, landscape lamps, spotlights, lamp lamps, and commercial residential lamps.
  • LED lamps such as tunnel lamps, wall washers, floodlights, underground lamps, landscape lamps, spotlights, lamp lamps, and commercial residential lamps.
  • the lighting device in this embodiment comprises a heat dissipating support structure, a printed circuit board, a light source and a lamp cover in order from bottom to top;
  • the light source is 50 blue LEDs, which will have red, orange, yellow, yellow green, and light conversion functions.
  • the blue-green, green, purple and purple-red light-emitting films are respectively attached to the upper surfaces of 40 different blue LEDs, and the remaining 10 blue LEDs are not attached with any luminescent film.
  • the blue light emitted by the blue LED excites the above-mentioned light-emitting membrane with light conversion function to generate red, orange, yellow, yellow-green, cyan, green, purple, and purple-red light, respectively, and blue light emitted from a blue LED without any light-emitting film. , forming a color lighting effect.
  • the lighting device described in this embodiment can be widely applied to various types of LED lamps such as tunnel lamps, wall washers, floodlights, underground lamps, landscape lamps, spotlights, lamp lamps, and commercial residential lamps.
  • LED lamps such as tunnel lamps, wall washers, floodlights, underground lamps, landscape lamps, spotlights, lamp lamps, and commercial residential lamps.
  • the illuminating device in this embodiment comprises a heat dissipating support structure, a printed circuit board, a light source, an LED lens and a lamp cover in order from bottom to top;
  • the light source is 80 blue light LED, each LED is equipped with an LED lens, which will have red, orange, yellow, yellow-green, blue-green, green, purple and purple-red light-emitting films with light conversion function, respectively, which are attached to 60 different LEDs.
  • On the upper surface of the lens no remaining luminescent film is attached to the remaining 20 LED lenses.
  • the LED lens with the luminescent film is excited by the blue light emitted by the blue LED to produce red, orange, yellow, yellow-green, cyan, green, purple and purple-red light, respectively, and blue light emitted from the blue LED without any luminescent film. , forming a color lighting effect.
  • the lighting device described in this embodiment can be widely applied to various types of LED lamps such as tunnel lamps, wall washers, floodlights, underground lamps, landscape lamps, spotlights, lamp lamps, and commercial residential lamps.
  • LED lamps such as tunnel lamps, wall washers, floodlights, underground lamps, landscape lamps, spotlights, lamp lamps, and commercial residential lamps.
  • the illuminating device in this embodiment comprises a heat dissipating support structure, a printed circuit board, a light source and a lamp cover in order from bottom to top; the light source is 150 blue LEDs, and the yellow light emitting film with light conversion function is attached to each blue light. On the upper surface of the LED. The blue light emitted by the blue LED excites the yellow light emitting film having the light converting function to generate yellow light, and combines with the remaining blue light transmitted through the yellow light emitting film to generate white light.
  • the illumination device described in this embodiment can be widely applied to various types of LED lamps such as high-power LED street lamps, spotlights, and commercial residential lamps.

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Description

一种 LED照明灯具 技术领域
本发明涉及一种 LED照明灯具， 特别涉及一种由具有特殊芯 片排布的集成 LED 芯片光源器件和光转换膜实现的高亮度面光 源， 该光源可用于室内照明的 LED灯具。 背景技术
随着世界经济的飞速 艮， 照^作为日常生活中所不可缺少的 部分， 成了世界各国的一项重要的能源消耗。 LED灯具由于其节 能、 环保， 并且颜色极为丰富， 可以通过电脑编程发出各种颜色 效果， 在灯光效果个性化运用、 广告业、 灯光亮化工程等场合具 有极佳的视觉效果。 因此 LED正逐渐替代白炽灯成为新的照明光 源。
目前，应用于照明领域的 LED灯具作为光源多为点光源发光， 透过该灯具可以清楚的看到点光源， 并产生刺眼的眩光， 如果长 期使用， 容易引起视觉疲劳甚至视力下降。
其次， LED灯具普遍存在单颗 LED发热量大， 造成其寿命下 降的问题， 为了解决散热问题， 散热器一般多采用散热效果好， 成本可控， 加工相对简便的压铸铝扇翅结构， 印刷电路板采用金 属芯的印制线路， 如铝基板或铜基板。
另外， 由于现有的 LED灯主要是采用荧光粉混合点胶覆盖在 LED芯片上的封装方式，这不仅会导致灯的散热性差，使 LED芯 片和荧光粉的老化速度较快， 光衰减较高， 发光效率低； 这种封 装工艺还使得白色 LED之间存在亮度不一致和均匀性差的缺点， 整体灯具容易产生眩光，而彩色灯具颜色主要依赖 LED本身颜色， 改变颜色必须更换 LED,各种颜色的 LED本身亮度也不均匀、 色 衰期不一致等。
为了解决散热问题， 专利 CN101179102A提出在 LED芯片的 外周以气体代替环氧树脂进行封闭， 利用气体产生的对流将热迅 速传导出灯罩外， 另外 LED芯片底部直接与杯体接触， 克服了现 有技术中 LED 芯片通过胶与杯底接触而导致传热效果不佳的缺 点， 使散热效果极佳。 这些改进方法虽然对解决发热量大， 眩光 等问题有一定作用。 但是， 它没能解决单颗 LED颜色单一， 整体 亮度不均匀的问题， 同时为了解决热量和眩光的问题， 带来了加 工工艺复杂， 成本大幅增加的缺点。
为了改进传统白光 LED灯具的亮度不一致、 均匀性差、 色温 易偏离和显色性差的缺点，专利 CN200993322中利用玻璃、塑料、 胶片等栽体， 与荧光粉结合形成特种材料， 并使用蓝色 LED光源 进行激发， 使上述光学问题得到了一定程度的改善。 但是， 因为 LED数量少， 所以该型灯具亮度偏低； 荧光粉与玻璃和塑料的结 合， 使得荧光粉含量增加， 提高了此灯具的成本； 另外光源和三 种材料的结合方式， 限制了 LED灯具的尺寸， 也难于达到良好的 照明和光学效果。
专利 CN101533882A提供了一种白光 LED用荧光粉预制薄膜 的封装方法， 将荧光粉和粘合剂釆用丝网印刷的方法制成薄膜封 装单个的 LED, 此种方法解决了点胶法中出现的相同批次以及不 同批次之间出光一致性较差的问题， 省去了点胶法中的分拣工序， 但丝网印刷工艺 ί >实现 LED光色高精度要求， 不易均匀成膜， 同时丝网印刷也不能实现大尺寸成卷制膜， 这就限制了此种膜的 用途， 该专利还提到了采用该预制薄膜的方法制造 LED整灯， 由 于荧光粉薄膜直接贴在灯的透光镜上， 因此芯片散热对其影响十 分微弱， 在一定程度上提高了 LED整灯的寿命， 但是其制备工艺 仍然复杂， 生产效率难以提高。 专利 US20060289884A1和 US20080206910A1提供了一种采 用收缩性薄膜封装制造 LED灯的方法， 在很大程度上解决了白光 LED灯具的亮度不一致、 均匀性差、 色温易偏离和显色性差的缺 点， 但该专利中釆用的薄膜为压延法制得的收缩性薄膜， 由于在 制膜过程中需要挤压成型， 因此发光材料的发光性能会有一定程 度的降低； 而且热收缩性薄膜其制备工艺也复杂， 其发光膜的材 质采用聚氯乙烯、 聚乙烯和聚丙烯， 这决定了膜的老化性能不好； 另外， 由于采用此种收缩性薄膜， 势必先将 LEDs 制成灯点， 导 致 LED灯具的制备工艺复杂。
专利 US20080142816A1 制造了一种可调节色温的白光点光 源， 该光源采用多个泵浦波长稍有不同的 LED芯片和波长转换单 元， 通过使 LED芯片产生的光的强度变化， 从而控制生成的光的 白光点。 而且， 由于使用相同类型的 LED芯片， 多个 LED芯片 可以紧密地位于一个或多个底座上， 形成紧凑的高亮度设计。
但该专利制得的白光 LED光源， 甚 LED芯片紧密的位于底座上， 由于密度大、 并且底座为多层结构， 其芯片点亮产生的热量不能 有效导出， 将会缩短 LED的使用寿命。
本发明将老化性能好的光转换膜与集成 LED芯片光源器件相 结合， 使 LED芯片分布在带有凹面的金属印刷线路板 ^上， 排 列方式采用多排， 采用错位等边三角形， 边长为 5mm±0.5mm， 光 转换膜距离芯片发光表面高度 0.6-0.8mm， 实现了高亮度面光源， 有效地解决了上面的问题和其它的问题。
通过多排布大量试验证明错位等边三角形能弥补 LED芯片不 同角度之间的出光不同， 使多芯片组合 LED混光出光效率最高， 保证 5mm间距下也可实现面光源， 同时还可保证单位面积的低发 热量， 而现有 LED光源产品主要以 LED芯片并列排布为主， 出 光不均， 光强的方向更强， 光弱的角度不能改善， 在间距达 5mm 时明暗不一样； 光转换膜通过与芯片发光面保持 0.6-0.8mm 的距 离， 可有效改良目前普遍采用的光转换材料与芯片紧密结合时的 老化问题， 另此间距也可对蓝色 LED光起到扩光作用， 更好的实 现面光源效果， 也避免了过高距离对出光的损失。 LED芯片固晶 在有凹面的金属线路板的基板上， 此结构将大大减少光源热阻， 可使 LED产生的热量艮快传导到金属基板上， 避免了结温过高对 LED的使用寿命影响。
其中本发明中的光转换膜由扩散膜和在其上的混合涂料层构 成， 混合涂料层由黄色发光荧光材料和 /或红色发光荧光材料、 聚 合物树脂、 双氨基硅烷、 稀幹剂和助剂组成， 其中： 所述的黄色 发光荧光材料被做为激发光源的发射光谱峰值波长在 440 ~ 475nm范围内的蓝光 LED ¾JC，吸收^ L出至少一个峰值波长在 525 ~ 580nm范围内的发射光谱；
所述的红色发光荧光材料被做为激发光源的发射光谱峰值波 长在 440 ~ 475nm范围内的蓝光 LED ^ l, 吸收^ L出至少一个 峰值波长在 580 ~ 650nm范围内的发射光谱；
黄色发光荧光材料和红色发光荧光材料所发出的光与蓝光 LED所发出的光复合成白色的光。 发明内容
本发明的目的是提供一种光色均一、不眩光的 LED照明灯具， 并且该 LED照明灯具具有较高的显色指数、 不同的色温， 可以实 现各种场合的应用。
为了解决上述技术问题， 本发明采用如下技术方案：
一种 LED照明灯具， 包括散热器， 集成 LED芯片光源器件， 光转换膜， 灯罩和电源， 其中散热器带有凹槽， 集成 LED芯片光 源器件位于散热器的凹槽内， 光转换膜置于集成 LED芯片光源器 件上方， 平铺在 LED芯片上， 灯罩罩在光转换膜上方并固定在散 热器上， 其特征在于集成 LED芯片光源器件的 LED芯片分布在带 有凹面的金属印刷线路板基板上， 排列方式采用多排， 采用错位 等边三角形， 边长最优为 5mm±0.5mm， 光转换膜距离芯片发光表 面高度 0.6-0.8mm， 实现高亮度面光源。
集成 LED芯片光源器件中的金属印刷线路板凹面处不含绝缘 层， LED芯片直接固晶在凹面金属基板上。
集成 LED芯片光源器件周围为散热器的凹槽内壁形成的反光 围坝。 .
散热器凹槽内填有透明硅胶或透明环氧树脂。
光转换膜含有可以被蓝光有效激发的荧光材料。
光转换膜中含有的聚合物树脂为有机硅树脂。
光转换膜可以被蓝光 LED芯片所发出的光 ^， 发出黄绿色、 黄色、 橙色或红色光中的一种。
本发明的有益效果在于：
1. 在本发明所述的 LED灯具中， 由于将具有光转换功能的光 转换膜和集成芯片光源器件相结合， 使得照明灯具光色均一， 而 且色彩范围、 显色性和纯度都得到了大幅度提高， 也从根本上改 善了传统灯具的眩光问题。
2. 在本发明所述的 LED照明灯具中， 由于将具有光转换功能 的光转换膜和集成芯片光源器件相结合， 可以实现全彩和白光， 便于色温的调节， 通过简单的更换具有光转换功能的光转换膜即 可实现多种颜色的转换， 简化了灯具的制造工艺， 从而起到降低 成本和便于推广的作用。
3. 本发明采用了有凹面的金属线路板的基板，去掉了绝缘层， 此结构将大大减少光源热阻， 可使 LED产生的热量很快传导到金 属基板上， 避免了结温过高对 LED的使用寿命影响。 4. 在本发明所述的 LED照明灯具中，由于采用的散热器具有 凹槽， 这样， 相当于给 LED光源又增加了一条散热通道， 使得产 生的热量可以快速散发到空气中， 改善了传统白光灯具散热性差 的问题， 提高了灯具的使用寿命。
5. 本发明提供的 LED灯具的制备方法为 LED芯片表面贴膜， 制作工艺简单， LED灯具光效高，也改善了荧光粉直接点胶在 LED 芯片上的荧光老化衰减现象。
6. 本发明的 LED芯片的错位等边三角形排布， 能弥补 LED 芯片不同角度之间的出光不同， 使多芯片组合 LED混光出光效率 最高， 在达到出光面光源的同时可使得 LED间距最大， 从而减少 LED紧密排布造成的局部温度过高， 影响 LED使用寿命。
7. 本发明中采用的光转换膜釆用有机硅树脂材料制成， 其老 化性能好。
8. LED 芯片周围为注有透明环氧树脂或透明硅胶的反光围 坝， 可以将散射到侧面的光射回， 同时因凹槽内注有透明树脂也 排除空气提高了 LED灯具的光效。
9. 印刷电路板（PCB )表面为白色反光层， 可以将照射到电 路板表面的光反射回去， 提高了 LED灯具的光效。 附图说明
图 1 集成 LED芯片光源器件芯片排布及转换膜结构 (双排)示 意图
图 2 LED照明灯具剖面示意图（电源未连接 )一一光转换膜上 部边缘与凹槽平齐（散热器的凹槽是卡槽）
图 3 LED照明灯具剖面示意图 （电源未连接）——光转换膜 上部边缘与凹槽平齐
图 4 集成 LED芯片光源器件芯片排布及转换膜结构 (多排)示 图 5 LED照明灯具剖面示意图——光转换膜置于凹槽之上（筒 灯）
图 6 ~图 11为照明装置结构示意图。
Figure imgf000009_0001
2一集成 LED芯片光源器件
3—光转换膜 4—灯罩
5—电源 B1: 具有光转换功能的发光膜; B2: 灯罩； B3: LED透镜；
B4: 发光二极管; B5: 印刷线路板；
B6: 散热支撑结构。 具体实施方式
以下对本发明一种 LED 照明灯具的内容结合附图和实施例作 进一步的说明：
参照图 1， 图 2，本发明是将光转换膜与集成 LED芯片光源器 件相结合制成 LED照明灯具。如图 1 所示，在商业可得到的印刷 电路板 ( PCB )上将蓝光 LED芯片固晶打线，其排布方式为双排， 采用错位等边三角形，边长为 5mm±0.5mm,使其与电路板上的电 路连接制成集成 LED芯片光源器件 2，然后将连接好 LED芯片的 印刷电路板插入带卡槽的铝型材散热器卡槽 1 内， 将发光材料和 聚合物树脂用涂布的方法制成光转换膜 3,然后将制成的光转换膜 3 粘贴到卡槽之上并与之平齐， 光转换膜距离芯片发光表面高度 0.6-0.8mm, 在另一个实施例中， 将制成的光转换膜 3平贴到散热 器的凹槽之上， 如图 3所示。 最后将透明材质的灯罩 4罩上， 在 散热器卡槽（凹槽）内注入填充物质， 填充物质可以是透明硅胶 或透明环氧树脂。 形成高亮度面光源， 用于替代条型灯管照明。 进一步参考图 4， 在商业可得到的印刷电路板（PCB )上将蓝 光 LED芯片固晶打线，其排布方式为多排，采用错位等边三角形， 边长为 5mm±0.5m， 使其与电路板上的电路连接制成集成 LED芯 片光源器件 2， 然后将连接好 LED芯片的印刷电路板平贴于散热 器 1之上，将发光材料和聚合物树脂用涂布的方法制成光转换膜 3， 然后将制成的光转换膜 3平贴于 LED芯片光源器件 2之上， 光转 换膜距离芯片发光表面高度 0.6-0.8mm，再将透明材质的圆形灯罩 4 固定灯壳之上， 在散热器卡槽内注入填充物质， 填充物质可以 是透明硅胶或透明环氧树脂， 最后将外置电源 5连接好， 形成高 亮度面光源， 用于平面照明的需要。
本发明可以用于 LED日光灯、 LED筒灯等多种 LED照明灯 具上。
本发明之实施， 并不限于以上最佳实施例所公开的方式。 此外，本发明还提供一种可以改善各种白光灯具光色的均一性 和防眩光性的 LED照明装置， 该装置具有较高显色指数， 便于实 现灯具彩色变换和应用。
具体技术方案如下：
一种 LED照明装置， 其结构从下至上依次包含散热支撑结构、 印刷线路板、 光源和灯罩， 或者在光源之上还设置 LED透镜， 所 述 LED照明装置中设有具有光转换功能的发光膜 (即光转换膜）， 所述发光膜位于光源与灯罩之间或灯罩之上； 如果在蓝光 LED点 光源上设置有 LED透镜， 所述发光膜除了位于光源与灯罩之间或 灯罩之上， 也可以直接贴覆于 LED透镜的上表面。
所述的光源为 1个或多个蓝光 LED点光源； 根据 LED照明装置 的设计和使用需求， 可将具有光转换功能的发光膜置于特定位置， 以改善 LED照明装置整体光色的均一性、 显色性和眩光等问题。 所述具有光转换功能的发光膜是含有荧光材料的薄膜， 厚度 为 30 ~ 200μιη;
具体方案： 所述具有光转换功能的发光膜贴覆于蓝光 LED的 表面；
或者将具有光转换功能的发光膜贴覆于灯罩的内表面； 或者将具有光转换功能的发光膜贴覆于灯罩的外表面；
LED照明装置有透镜结构时， 除了将具有光转换功能的发光 膜贴覆于蓝光 LED的表面、 灯罩的内表面和灯罩的外表面， 还可 以将具有光转换功能的发光膜直接贴覆于 LED透镜的上表面。
所述具有光转换功能的发光膜被蓝光 LED点光源所发的蓝光 激发发出白色、 红色、 橙色、 黄色、 黄绿色、 蓝绿、 绿色、 紫色 或紫红色光；
应用所述具有光转换功能的发光膜釆用一种或者多种的组合 使用；
所述具有光转换功能的发光膜上印刷有圆形、 环形、 扇形、 三角形、 五角星、 动物、 植物、 卡通图案或不规则几何图案； 所述具有光转换功能的发光膜完全贴覆于灯罩或光源上； 所述具有光转换功能的发光膜切成圆形、 环形、 扇形、 三角 形、 五角星、 动物、 植物、 卡通图案或不规则几何图案贴覆于灯 罩或光源上；
所述的 LED照明装置具有多个蓝光 LED点光源时， 可将具有 光转换功能的发光膜分别贴覆于蓝光 LED点光源的表面； 或者根 据照明装置的设计图案， 将一部分点光源贴覆发光膜， 另一部分 点光源不贴覆发光膜， 使点亮后的 LED照明装置照射出不同的颜 色和图案。
所述的 LED照明装置具有多个蓝光 LED点光源时， 若照明装 置中含有透镜， 可以将具有光转换功能的发光膜贴覆于 LED透镜 的表面； 或者根据照明装置的设计图案， 将一部分 LED透镜上贴 覆发光膜， 另一部分 LED透镜不贴覆发光膜， 使点亮后的 LED照 明装置照射出不同的颜色和图案。
本发明的 LED照明装置能使蓝色 LED光源发出的光线经过具有 光转换功能的发光膜， 并激发其发光。 各种颜色的具有光转换功 能的发光膜被蓝光光源所发出的 440 ~ 475nm 范围的光激发， 发 出发射光 峰值波长在 440 ~ 640nm范围的光， 如红、橙、 黄、 黄 绿、 兰绿、 绿、 紫或紫红色光； 当釆用具有光转换功能的黄光发 光膜时， 发光膜被激发发出黄光与透过光转换膜的剩余蓝光复合 成白光。 下面结合实施例进一步描述采用发光膜的照明装置结构。
实施例 1
本实施例中的照明装置其结构从下至上依次包含散热支撑结 构、 印刷线路板、 光源和灯罩； 所述光源为 1个蓝光 LED, 将具 有光转换功能的黄光发光膜表贴在蓝光 LED 的上表面上。 蓝光 LED 所发出的蓝光激发具有光转换功能的黄光发光膜产生黄色 光， 与透过黄光发光膜的剩余蓝光复合产生白光。
这一实施例所述的照明装置可以广泛应用于洗墙灯、 泛光灯、 地埋灯、景观灯、射灯、 车灯、 商用民用照明灯等各型 LED灯具。 实施例 2
本实施例中的照明装置其结构从下至上依次包含散热支撑结 构、 印刷线路板、 光源和灯罩； 光源为 20个蓝光 LED光源， 将 具有光转换功能的红光发光膜表贴在蓝光 LED的上表面上， 具有 光转换功能的红色发光膜被蓝光 LED所发的蓝光激发产生红光。
这一实施例所述的照明装置可以广泛应用于现有的隧道灯、洗 墙灯、 泛光灯、 地埋灯、 景观灯、 射灯、 商用民用照明灯等各型
LED灯具。
实施例 3
本实施例中的照明装置如图 8所示，其结构从下至上依次包含 散热支撑结构 B6、 印刷线路板 B5、 光源、 LED透镜 B3和灯罩 B2; 所述光源为 10个蓝光 LED B4， 将具有光转换功能的紫光发 光膜 B1表贴在整个灯罩 B2的内表面， 紧密贴合压紧， 形成完整 的照明装置。 蓝色 LED B4所发出的光线激发具有光转换功能的 紫光发光膜 Bl， 发出紫光。
这一实施例所述的照明装置可以广泛应用于现有的洗墙灯、泛 光灯、地埋灯、景观灯、射灯、车灯、 商用民用照明灯等各型 LED 灯具。
实施例 4
本实施例中的照明装置如图 7所示，其结构从下至上依次包含 散热支撑结构 B6、 印刷线路板 B5、 光源、 LED透镜 B3和灯罩 B2; 所述光源为 10个蓝光 LED B4， 将具有光转换功能的绿光发 光膜 B1表贴在整个灯罩 B2的外表面， 紧密贴合压紧， 形成完整 的照明装置。 蓝色 LED B4所发出的光线激发具有光转换功能的 绿光发光膜 Bl， 发出绿光。
这一实施例所述的照明装置可以广泛应用于现有的洗墙灯、泛 光灯、地埋灯、 景观灯、射灯、 商用民用照明灯等各型 LED灯具。 实施例 5
本实施例中的照明装置如图 6所示，其结构从下至上依次包含 散热支撑结构 B6、 印刷线路板 B5、 光源、 LED透镜 B3和灯罩 B2; 所述光源为 30个蓝光 LED B4, 每个蓝光 LED B4上配置有 一个 LED透镜 B3,将具有光转换功能的黄绿光发光膜 B1表贴在 LED透镜 B3的上表面； 光源发出的蓝光先经过 LED透镜 B3, 再经过具有光转换功能的黄绿光发光膜 Bl， 产生的黄绿光再经过 灯罩 B2散发到外部， 达到照明的效果。
这一实施例所述的照明装置可以广泛应用于现有的洗墙灯、泛 光灯、 地埋灯、 景观灯、 射灯、 商用民用照明灯等各型灯具。 实施例 6
本实施例中的照明装置如图 10所示， 其结构从下至上依次包 舍敉热支撑结构 B6、 印刷线路板 B5、 光源和灯罩 B2; 所述光源 为 10个蓝光 LED B4, 先在具有光转换功能的蓝绿光发光膜 B1 上印刷上图案（可以印刷各种动物、 植物、 卡通等图案或者环形、 扇形、 五角星、 三角形等规则或不规则几何图案）， 然后将其表贴 在整个灯罩 B2的内表面， 紧密贴合压紧， 形成完整的照明装置。 蓝色 LED B4所发出的光线激发具有光转换功能的蓝绿光发光膜 B1, 发出蓝绿光。
这一实施例所述的照明装置可以广泛应用于现有的洗墙灯、泛 光灯、地埋灯、景观灯、射灯、车灯、 商用民用照明灯等各型 LED 灯具。
实施例 7
本实施例中的照明装置如图 11所示， 其结构从下至上依次包 热支撑结构 B6、 印刷线路板 B5、 光源和灯罩 B2; 所述光源 为 100个蓝光 LED B4， 将具有光转换功能的黄光发光膜 B1表贴 在各蓝光 LED B4的上表面上。蓝光 LED B4所发出的蓝光 具 有光转换功能的黄光发光膜 B1产生黄色光，与透过黄光发光膜的 剩余蓝光复合产生白光。
这一实施例所述的照明装置可以广泛应用于现有的大功率 LED路灯、 洗墙灯、 泛光灯、 地埋灯、 景观灯、 射灯、 车灯、 商 用民用照明灯等各型 LED灯具。
实施例 8 本实施例中的照明装置如图 9所示，其结构从下至上依次包含 散热支撑结构 B6、 印刷线路板 B5、 光源和灯罩 B2; 所述光源为 16个蓝光 LED B4， 首先对具有光转换功能的紫红光发光膜 B1进 行几何图案模切， 如： 圆形、 方形、 三角形等几何图案， 然后将 模切后的具有光转换功能的发光膜 B1表贴在整个灯罩 B2的外表 面， 形成完整的照明装置。 蓝色 LED B4所发出的蓝光， 通过灯 罩 B2经过具有光转换功能的紫红光发光膜 B1, 其模切镂空的几 何图案表面发出蓝色光线， 其余表面发出紫红色光线， 形成独特 的彩色照明装饰效果。
这一实施例所述的照明装置可以广泛应用于现有的隧道灯、洗 墙灯、 泛光灯、 地埋灯、 景观灯、 射灯、 车灯、 商用民用照明灯 等各型 LED灯具。
实施例 9
本实施例中的照明装置其结构从下至上依次包含散热支撑结 构、 印刷线路板、 光源和灯罩； 所述光源为 50个蓝光 LED, 将具 有光转换功能的红、 橙、 黄、 黄绿、 蓝绿、 绿、 紫和紫红色光发 光膜， 分别表贴在其中 40个不同蓝光 LED的上表面， 剩余的 10 个蓝光 LED上不贴任何发光膜。 蓝光 LED所发出的蓝光激发上 述具有光转换功能的发光膜， 分别产生红、 橙、 黄、 黄绿、 蓝绿、 绿、 紫和紫红色光， 与不贴任何发光膜的蓝光 LED发出的蓝光， 形成彩色照明效果。
这一实施例所述的照明装置可以广泛应用于现有的隧道灯、洗 墙灯、 泛光灯、 地埋灯、 景观灯、 射灯、 车灯、 商用民用照明灯 等各型 LED灯具。
实施例 10
本实施例中的照明装置其结构从下至上依次包含散热支撑结 构、 印刷线路板、 光源、 LED透镜和灯罩； 所述光源为 80个蓝光 LED, 每个蓝光 LED上配置有一个 LED透镜， 将具有光转换功 能的红、 橙、 黄、 黄绿、 蓝绿、 绿、 紫和紫红色光发光膜， 分别 表贴在其中 60个不同 LED透镜的上表面， 剩余的 20个 LED透 镜上不贴任何发光膜。 贴有发光膜的 LED透镜被蓝光 LED所发 出的蓝光激发， 分别产生红、 橙、 黄、 黄绿、 蓝绿、 绿、 紫和紫 红色光， 与不贴任何发光膜的蓝光 LED发出的蓝光， 形成彩色照 明效果。
这一实施例所述的照明装置可以广泛应用于现有的隧道灯、洗 墙灯、 泛光灯、 地埋灯、 景观灯、 射灯、 车灯、 商用民用照明灯 等各型 LED灯具。
实施例 11
本实施例中的照明装置其结构从下至上依次包含散热支撑结 构、 印刷线路板、 光源和灯罩； 所述光源为 150个蓝光 LED, 将 具有光转换功能的黄光发光膜表贴在各蓝光 LED的上表面上。 蓝 光 LED所发出的蓝光激发具有光转换功能的黄光发光膜产生黄色 光， 与透过黄光发光膜的剩余蓝光复合产生白光。
这一实施例所述的照明装置可以广泛应用于现有的大功率 LED路 灯、 射灯、 商用民用照明灯等各型 LED灯具。

Claims

权 利 要 求
1、 一种 LED照明灯具， 包括散热器， 集成 LED芯片光源器 件， 光转换膜， 灯罩和电源， 其中散热器带有凹槽， 集成 LED 芯片光源器件位于散热器的凹槽内， 光转换膜置于集成 LED芯 片光源器件上方， 平铺在 LED芯片上， 灯罩罩在光转换膜上方 并固定在散热器上， 其特征在于集成 LED芯片光源器件的 LED 芯片分布在带有凹面的金属印刷线路板基板上， 排列方式釆用 多排， 采用错位等边三角形， 实现高亮度面光源。
2、 如权利要求 1中所述的 LED照明灯具， 其特征在于， 所 述错位等边三角形的边长为 5mm±0.5mm。
3、 如权利要求 1中所述的 LED照明灯具， 其特征在于， 所 述光转换膜距离芯片发光表面高度为 0.6mm-0.8mm。
4、 如权利要求 1中所述的 LED照明灯具， 其特征在于集成 LED芯片光源器件中的金属印刷线路板凹面处不含绝缘层， LED芯片直接固晶在凹面金属基板上。
5、 如权利要求 1中所述的 LED照明灯具， 其特征在于集成 LED芯片光源器件周围为散热器的凹槽内壁形成的反光围坝。 .
6、 如权利要求 1中所述的 LED照明灯具， 其特征在于在散 热器凹槽内填有透明硅胶或透明环氧树脂。
7、 如权利要求 1中所述的 LED照明灯具， 其特征在于光转 换膜含有可以被光有效激发的荧光材料。
8、 如权利要求 1中所述的 LED照明灯具， 其特征在于光 转换膜中含有的聚合物树脂为有机硅树脂。
9、 如权利要求 1中所述的 LED照明灯具， 其特征在于光转 换膜可以被 LED芯片所发出的光激发， 发出红色、 橙色、 黄色 或黄绿色光中的一种。
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CN108087835A (zh) * 2017-06-19 2018-05-29 上海小糸车灯有限公司 一种用于汽车前大灯的led光源及汽车前大灯
CN108281416A (zh) * 2018-03-15 2018-07-13 江西申安亚明光电科技有限公司 一种直射式光源
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CN102748599A (zh) * 2011-04-22 2012-10-24 海洋王照明科技股份有限公司 Led灯具
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CN110553184A (zh) * 2019-10-15 2019-12-10 恩藤照明设备(北京)有限公司 高光效sd线光源
WO2024173977A1 (en) * 2023-02-20 2024-08-29 Dukesea Pty Limited Lighting assembly

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