WO2013004195A1 - 大功率led照明装置 - Google Patents

大功率led照明装置 Download PDF

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Publication number
WO2013004195A1
WO2013004195A1 PCT/CN2012/078304 CN2012078304W WO2013004195A1 WO 2013004195 A1 WO2013004195 A1 WO 2013004195A1 CN 2012078304 W CN2012078304 W CN 2012078304W WO 2013004195 A1 WO2013004195 A1 WO 2013004195A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat sink
lighting device
led lighting
circuit board
flexible pcb
Prior art date
Application number
PCT/CN2012/078304
Other languages
English (en)
French (fr)
Inventor
陈明允
洪作财
Original Assignee
东莞巨扬电器有限公司
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
Priority claimed from CN201120238238XU external-priority patent/CN202165932U/zh
Priority claimed from CN2011202382267U external-priority patent/CN202165930U/zh
Priority claimed from CN201120238220XU external-priority patent/CN202165929U/zh
Priority claimed from CN2011202382394U external-priority patent/CN202165933U/zh
Priority claimed from CN2011202382178U external-priority patent/CN202165928U/zh
Priority claimed from CN2011202382182U external-priority patent/CN202165872U/zh
Priority claimed from CN2011202382286U external-priority patent/CN202166019U/zh
Application filed by 东莞巨扬电器有限公司 filed Critical 东莞巨扬电器有限公司
Publication of WO2013004195A1 publication Critical patent/WO2013004195A1/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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • 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
    • F21V29/763—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 the planes containing the fins or blades having the direction of the light emitting axis
    • 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 invention relates to the field of high-power LED lighting technology, in particular to a high-power LED lighting device combining a lithium-semiconductor heat sink and a flexible PCB circuit board to improve heat dissipation.
  • high-power LED lighting devices are commonly used in various applications in various usage modes.
  • a fishing light used for fishing a square light that illuminates a square, a tunnel light that illuminates a tunnel, a street light that illuminates a road, and an advertising light that illuminates a billboard, commonly known as PAR Downlights of lights, etc.
  • the high-power LED lighting device comprises a casing, an LED lamp set and an aluminum radiator, the LED lamp group and the aluminum radiator are fixed in the casing, and the LED lamp group is attached to the aluminum radiator. Due to the high power of the high-power LED lighting device, the LED lamp group generates more heat when performing illumination, resulting in a higher temperature of the LED lamp group. Therefore, the high-power LED lighting device needs to be provided with a heat sink such as a heat sink to reduce the temperature of the LED light group.
  • the high-power LED lighting device only has an aluminum heat sink attached to the back of the LED light group, and the aluminum heat sink Although the device has a certain heat dissipation effect, the heat conduction speed of the aluminum heat sink is slow, and the heat dissipation speed still cannot meet the heat dissipation requirements of the high-power LED lighting device, so the heat dissipation effect is still not satisfactory. Therefore, the temperature of the LED lamp group of the high-power LED lighting device is still high, so it is necessary to improve it.
  • Taiwan Patent No. M390637 discloses a flexible circuit board provided with LEDs, but which directly discards the use of the aluminum alloy heat sink, which in turn causes additional problems in the arrangement and heat dissipation of the overall lighting device. Summary of the invention
  • the main object of the present invention is to provide a high-power LED lighting device with improved heat dissipation, which replaces a conventional hard circuit board with a flexible PCB circuit board, so that the heat accumulated on the flexible PCB circuit board is relatively
  • the hard circuit board is much less, so it has a good heat dissipation effect, thereby improving the heat dissipation efficiency, and further extending the life of the LED lighting device.
  • the technical solution adopted by the present invention is to provide a high-power LED lighting device, comprising a casing, an aluminum heat sink, a lithium-magnesium alloy heat sink and a flexible PCB circuit board, the flexible PCB A plurality of LED lamps are disposed on the front surface of the circuit board, and a back surface of the flexible PCB circuit board is fixed to the lithium magnesium alloy heat sink, and the lithium magnesium alloy heat sink is fixed to the aluminum heat sink.
  • the top of the aluminum heat sink is provided with a flat portion
  • the lithium magnesium alloy heat sink is attached to the flat portion
  • the bottom of the aluminum heat sink is provided with a plurality of fins.
  • the lithium magnesium alloy heat sink is embedded on the top of the aluminum heat sink.
  • the front surface of the high-power LED lighting device is provided with a light-transmitting lens, and the light-transmitting lens is fixed to the outer casing.
  • the high power LED lighting device is provided with a power module, and the power module is electrically connected to the flexible PCB circuit board.
  • the aluminum heat sink and the flexible PCB circuit board are disposed in the inner cavity of the outer casing.
  • the high power LED lighting device is one of a fishlight, a square light, a street light, a PAR light, a tunnel light and an advertising light.
  • the high power LED lighting device further comprises a human body sensing element and/or a photoresistor, and the human body sensing element and/or the photoresistor is electrically connected to the flexible PCB circuit board.
  • Still another preferred embodiment of the present invention provides a high power LED lighting device including a housing, a composite heat sink, and a flexible PCB circuit board.
  • the flexible PCB circuit board is provided with a plurality of LED lights on the front side thereof.
  • the back side of the flexible PCB circuit board is fixed to the composite heat sink.
  • the composite heat sink comprises a lithium magnesium alloy heat sink and an aluminum heat sink
  • the top of the aluminum heat sink is provided with a flat portion
  • the lithium magnesium alloy heat sink is attached to the flat portion
  • the bottom of the heat sink is provided with a plurality of fins; wherein the lithium magnesium alloy fins are embedded on the top of the aluminum heat sink.
  • the front surface of the high-power LED lighting device is provided with a light-transmitting lens, and the light-transmitting lens is fixed to the outer casing.
  • the high power LED lighting device is provided with a power module, and the power module is electrically connected to the flexible PCB circuit board.
  • the composite heat sink and the flexible PCB circuit board are disposed in a cavity of the outer casing.
  • a high power LED lighting device including a housing, an aluminum heat sink and a flexible PCB circuit board, the flexible PCB circuit board being provided with a plurality of LED lights on the front side, the flexibility
  • the PCB circuit board is disposed in the inner cavity of the outer casing, and the back surface of the flexible PCB circuit board is fixed to the aluminum heat sink.
  • the top of the aluminum heat sink is provided with a flat portion, and the back surface of the flexible PCB is attached to the flat surface.
  • the bottom portion of the aluminum heat sink is provided with a plurality of fins.
  • the front surface of the high-power LED lighting device is provided with a light-transmitting lens, and the light-transmitting lens is fixed to the outer casing.
  • the high power LED lighting device is provided with a power module, and the power module is electrically connected to the flexible PCB circuit board.
  • the high-power LED lighting device of the invention replaces the conventional hard circuit board by the flexible PCB circuit board, so that the heat accumulated on the flexible PCB circuit board is much less than that of the hard circuit board, so that the heat dissipation effect is good, thereby improving the heat dissipation efficiency.
  • the high-power LED lighting device of the present invention can also utilize a lithium-magnesium alloy heat sink with a high thermal conductivity, and a flexible PCB circuit board to quickly generate a flexible PCB circuit board when working.
  • the heat is transferred to the aluminum heat sink to further enhance the heat dissipation effect, so that the heat accumulated on the flexible PCB circuit board is very small, and the temperature of the flexible PCB circuit board is not high, thereby setting up, the LED light of the flexible PCB circuit board can be improved. Efficiency and extend the life of LED lights on flexible PCB boards.
  • FIG. 1 is a schematic view showing the internal structure of a high-power LED lighting device of the present invention as a downlight.
  • FIG. 2 is an exploded perspective view of a high-power LED lighting device of the present invention as a downlight.
  • FIG. 3 is a schematic diagram showing the internal structure of a high-power LED lighting device according to the present invention.
  • FIG. 4 is an exploded perspective view of a high-power LED lighting device according to the present invention.
  • FIG. 5 is a schematic structural view of a high-power LED lighting device of the present invention as a street lamp.
  • Figure 6 is a cross-sectional view taken along line A-A of Figure 5 of the present invention.
  • FIG. 7 is an exploded perspective view of a high-power LED lighting device of the present invention.
  • FIG. 8 is a schematic structural view of a high-power LED lighting device of the present invention as a tunnel light.
  • Figure 9 is a schematic cross-sectional view taken along line B-B of Figure 8 of the present invention.
  • FIG. 10 is an exploded perspective view of a high-power LED lighting device of the present invention as a tunnel light.
  • FIG. 12 is an exploded perspective view of a high-power LED lighting device of the present invention as a square lamp.
  • FIG. 13 is a schematic structural view of a high-power LED lighting device of the present invention as an advertising lamp.
  • Figure 14 is a cross-sectional view taken along line C-C of Figure 13 of the present invention.
  • FIG. 15 is an exploded perspective view showing a high-power LED lighting device of the present invention as an advertising lamp.
  • Figure 16 is a schematic view showing the structure of another high-power LED lighting device of the present invention.
  • Figure 17 is a cross-sectional view taken along line D-D of Figure 16 of the present invention.
  • Figure 18 is an exploded perspective view of another high-power LED lighting device of the present invention. detailed description
  • FIG. 1 is a schematic diagram showing the internal structure of a high-power LED lighting device according to the present invention
  • FIG. 2 is an exploded view of the high-power LED lighting device of the present invention.
  • the high power LED lighting device of the present invention is generally applied to at least one of an outdoor light and a commercial light.
  • the outdoor light may be at least one of a set of fish lights, a square light, a street light, a tunnel light, and an advertising light
  • the commercial light may be at least one of a downlight and an advertising light.
  • the high-power LED lighting device of the present invention is a downlight 1.
  • the downlight 1 includes a casing 11 having a vent hole 110 and an aluminum heat sink 13, and further includes a lithium magnesium alloy heat sink.
  • a flexible circuit board 12 a front side of the flexible PCB circuit board 12 is provided with a plurality of LED lamps 14, a back surface of the flexible PCB circuit board 12 is fixed to the lithium magnesium alloy heat sink 15, and the lithium magnesium alloy heat sink 15 is fixed to Aluminum radiator 13.
  • the flexible PCB circuit board 12, the lithium-magnesium alloy heat sink 15 and the aluminum heat sink 13 are all fixed in the outer casing 11.
  • the lithium magnesium alloy heat sink 15 is a sheet made of a lithium magnesium alloy material, and the lithium magnesium alloy heat sink 15 has a high thermal conductivity and a heat conduction efficiency.
  • those skilled in the art can easily change the arrangement so that the lithium magnesium alloy heat sink 15 and the aluminum heat sink 13 are integrally formed, that is, the lithium magnesium alloy heat sink 15 and the aluminum heat sink 13 are collectively formed into a composite. Material heat sink.
  • the lithium magnesium alloy heat sink 15 is used as the first heat conduction medium, the heat conduction speed is increased, the temperature of the LED lamp 14 and the flexible PCB circuit board 12 is rapidly lowered, and the aluminum heat sink 13 is used as the second heat conduction medium to reduce The amount of lithium magnesium alloy heat sink 15 used.
  • the overall heat conduction effect is better while reducing the cost.
  • the selection of the first heat transfer medium and the second heat transfer medium this is merely an enumeration and is not intended to be a limitation.
  • the flexible PCB circuit board 12 is a soft printed circuit board, the flexible PCB circuit board 12 can be bent at a large angle, and can be easily disposed on any component that does not have a complete plane. It is more limited by space.
  • the flexible PCB circuit board 12 has a small thickness, and the flexible PCB circuit board 12 has a faster heat conduction speed and a better heat dissipation efficiency than a hard printed circuit board.
  • the heat generated by the flexible PCB circuit board 12 can be quickly transferred to the aluminum heat sink 13, so that the heat accumulated on the flexible PCB circuit board 12 is very small, so the flexibility The temperature of the PCB circuit board 12 is not easily raised.
  • the top of the aluminum heat sink 13 is provided with a flat portion
  • the lithium magnesium alloy heat sink 15 is attached to the flat portion
  • the bottom of the aluminum heat sink 13 is provided with a plurality of fins to assist heat dissipation.
  • the lithium magnesium alloy heat sink 15 is embedded in the top of the aluminum heat sink 13 in an embedded manner to save space and fit closely.
  • the front surface of the downlight 1 is provided with a light-transmitting lens 17, and the light-transmitting lens 17 is fixed to the outer casing 11.
  • the light-transmitting lens 17 will be the LED lamp 14, the flexible PCB circuit board 12, and the lithium-magnesium alloy heat sink 15 And an aluminum heat sink 13 is disposed in the inner cavity of the outer casing 11.
  • the downlight 1 further includes a human body sensing element (not shown) and/or a photoresistor (not shown), and the human body sensing element and/or the photoresistor is electrically connected to the flexible PCB circuit board.
  • the human body sensing element determines whether there is pedestrian walking or object movement in the vicinity of the downlight 1, and if so, a power module electrically connected to the flexible PCB circuit board 12 supplies power to cause the LED lamp 14 to perform illumination; or, by The photoresistor determines the ambient light and darkness. If it is too dark, a power module electrically connected to the flexible PCB circuit board 12 supplies power to cause the LED lamp 14 to perform illumination.
  • FIG. 3 is a schematic diagram showing the internal structure of a high-power LED lighting device according to the present invention
  • FIG. 4 is an exploded view of the high-power LED lighting device of the present invention.
  • the high-power LED lighting device of the present invention is a fish-collecting lamp 2, similar to the downlight 1 of the first embodiment, the fishing light 2 includes a casing 21 and an aluminum radiator 23, and includes a lithium-magnesium alloy heat sink 25 and a flexible PCB circuit board 22; a plurality of LED lamps 24 are disposed on the front surface of the flexible PCB circuit board 22, and the back surface of the flexible PCB circuit board 22 is fixed to the lithium-magnesium alloy heat sink 25, and the lithium magnesium alloy heats up The sheet 25 is fixed to the aluminum heat sink 23.
  • the flexible PCB circuit board 22, the lithium-magnesium alloy heat sink 25, and the aluminum heat sink 23 are all fixed in the outer casing 21.
  • the lithium-magnesium alloy heat sink 25 is a sheet made of a lithium-magnesium alloy material, and the lithium-magnesium alloy heat sink 25 has a high thermal conductivity and a better heat conduction efficiency.
  • the flexible PCB circuit board 22 has a small thickness, and the flexible PCB circuit board 22 has a faster heat transfer speed and a better heat dissipation efficiency than a hard printed circuit board. With the lithium-magnesium alloy heat sink 25 with high thermal conductivity, the heat generated by the flexible PCB circuit board 22 can be quickly transferred to the aluminum heat sink 23, so that the heat accumulated on the flexible PCB circuit board 22 is very small, so the flexible PCB circuit board The temperature of 22 is not easy to rise.
  • the bottom of the aluminum heat sink 23 is provided with a plurality of fins 26.
  • the lithium magnesium alloy heat sink 25 is embedded in the top of the aluminum heat sink 23 in an embedded manner to save space and fit closely. Effective.
  • the front surface of the fish-collar lamp 2 is provided with a light-transmitting lens 27, and the light-transmitting lens 27 is fixed to the outer casing 21.
  • the light-transmitting lens 27 has an LED lamp 24, a flexible PCB circuit board 22, a lithium-magnesium alloy heat sink 25, and
  • the aluminum heat sink 23 is placed in the inner cavity of the outer casing 21.
  • FIG. 5 is a schematic structural view of a high-power LED lighting device according to the present invention
  • FIG. 6 is a cross-sectional view along line AA of FIG. 5 of the present invention
  • FIG. 7 is a high-power LED lighting device of the present invention. It is a schematic diagram of the decomposition of a street lamp.
  • the high-power LED lighting device of the present invention is a street lamp 3, similar to the downlight 1 of the first embodiment, the street lamp 3 includes a casing 31 and an aluminum radiator 33, and further includes a lithium magnesium alloy. a heat sink 35 and a flexible PCB circuit board 32; a front surface of the flexible PCB circuit board 32 is provided with a plurality of LED lamps 34, the back surface of the flexible PCB circuit board 32 is fixed to the lithium magnesium alloy heat sink 35, and the lithium magnesium alloy heat sink 35 is fixed to Aluminum radiator 33.
  • the flexible PCB circuit board 32, the lithium-magnesium alloy heat sink 35, and the aluminum heat sink 33 are all fixed in the outer casing 31.
  • the bottom of the aluminum heat sink 33 is provided with a plurality of fins 36.
  • the lithium magnesium alloy heat sink 35 is embedded in the top of the aluminum heat sink 33 in an embedded manner to achieve space saving and close fit.
  • the front surface of the street lamp 3 is provided with a light-transmitting lens 37, and the light-transmitting lens 37 is fixed to the outer casing 31. At the same time, the light-transmitting lens 37 dissipates the LED lamp 34, the flexible PCB circuit board 32, the lithium-magnesium alloy heat sink 35 and the aluminum heat sink.
  • the device 33 is placed in the inner cavity of the outer casing 31.
  • the surface area of the light-transmitting lens 37 can be smaller than the surface area of the outer casing 31, so that when the two are assembled together (as shown in FIG. 5 to FIG. 7), a large gap can be left.
  • 310 used as a vent; more preferably, in order to prevent liquid from an outside from entering the outer casing 31 through the vent 310, in the embodiment, the street lamp 3 further includes a waterproof means (not shown). Preferably, it is disposed on the periphery of the casing 31 to prevent liquid from flowing into the casing 31 through the vent hole 310 from the outside, and to maintain the internal circuit of the street lamp 3 to operate well.
  • At least one vent hole may be disposed at the outer casing 31 as described in the foregoing embodiment, and thus will not be described again.
  • FIG. 8 is a schematic structural view of a high-power LED lighting device according to the present invention
  • FIG. 9 is a cross-sectional view along line BB of FIG. 8 of the present invention
  • FIG. 10 is a high-power LED lighting of the present invention.
  • the device is an exploded schematic view of a tunnel light.
  • the high-power LED lighting device of the present invention is a tunnel lamp 4, similar to the downlight 1 of the first embodiment, the tunnel lamp 4 includes a casing 41 and an aluminum radiator 43, and further includes a lithium a magnesium alloy heat sink 45 and a flexible PCB circuit board 42; a plurality of LED lamps 44 are disposed on the front surface of the flexible PCB circuit board 42, and the back surface of the flexible PCB circuit board 42 is fixed to the lithium magnesium alloy heat sink 45, and the lithium magnesium alloy heat sink 45 It is fixed to the aluminum radiator 43.
  • the tunnel lamp 4 further includes a power module 48 electrically connected to the flexible PCB circuit board 42 , and the power module 48 , the flexible PCB circuit board 42 , the lithium magnesium alloy heat sink 45 , and the aluminum heat sink 43 are all fixed in the outer casing 41 . .
  • the bottom of the aluminum heat sink 43 is provided with a plurality of fins 46.
  • the lithium-magnesium alloy fins 45 are embedded in the top of the aluminum heat sink 43 in an embedded manner to achieve space saving and close fit.
  • a light-transmitting lens 47 is disposed on the front surface of the tunnel lamp 4, and the light-transmitting lens 47 is fixed to the outer casing 41.
  • the light-transmitting lens 47 will be an LED lamp 44, a flexible PCB circuit board 42, a lithium-magnesium alloy heat sink 45, and aluminum.
  • the heat sink 43 is placed in the inner cavity of the outer casing 41.
  • FIG. 11 is a schematic diagram showing the structure of a high-power LED lighting device according to the present invention
  • FIG. 12 is an exploded perspective view of the high-power LED lighting device of the present invention.
  • the high-power LED lighting device of the present invention is a square lamp 5, similar to the downlight 1 of the first embodiment, the square lamp 5 includes a casing 51 and an aluminum radiator 53, and further includes a lithium a magnesium alloy heat sink 55 and a flexible PCB circuit board 52; a plurality of LED lamps 54 are disposed on the front surface of the flexible PCB circuit board 52, and the back surface of the flexible PCB circuit board 52 is fixed to the lithium magnesium alloy heat sink 55, and the lithium magnesium alloy heat sink 55 Fixed to aluminum radiator 53. Among them, the flexible PCB circuit board 52, the lithium magnesium alloy heat sink 55, and the aluminum heat sink 53 are all fixed in the outer casing 51.
  • the bottom of the aluminum heat sink 53 is provided with a plurality of fins 56.
  • the lithium magnesium alloy heat sink 55 is embedded in the top of the aluminum heat sink 53 in an embedded manner to achieve space saving and close fit.
  • a light-transmitting lens 57 is disposed on the front surface of the square lamp 5, and the light-transmitting lens 57 is fixed to the outer casing 51.
  • the light-transmitting lens 57 has an LED lamp 54, a flexible PCB circuit board 52, a lithium-magnesium alloy heat sink 55, and aluminum.
  • the heat sink 53 is enclosed in the inner cavity of the outer casing 51.
  • FIG. 13 is a schematic structural view of a high-power LED lighting device of the present invention as an advertising lamp;
  • FIG. 14 is a cross-sectional view along line CC of FIG. 13 of the present invention;
  • the device is an exploded view of an advertising light.
  • the high-power LED lighting device of the present invention is an advertising lamp 6, similar to the downlight 1 of the first embodiment, the advertising lamp 6 includes a casing 61 and an aluminum radiator 63, and further includes a lithium a magnesium alloy heat sink 65 and a flexible PCB circuit board 62; a plurality of LED lamps 64 are disposed in front of the flexible PCB circuit board 62, and a back surface of the flexible PCB circuit board 62 is fixed to the lithium magnesium alloy heat sink 65, and the lithium magnesium alloy heat sink 65 It is fixed to the aluminum heat sink 63.
  • the advertising lamp 6 further includes a power module 68 electrically connected to the flexible PCB circuit board 62. The power module 68, the flexible PCB circuit board 62, the lithium magnesium alloy heat sink 65 and the aluminum heat sink 63 are all fixed in the outer casing 61.
  • a plurality of fins 66 are disposed at the bottom of the aluminum heat sink 63.
  • the lithium-magnesium alloy fins 65 are embedded in the top of the aluminum heat sink 63 in an embedded manner to achieve space saving and close fit.
  • the front surface of the advertising lamp 6 is provided with a light-transmitting lens 67, and the light-transmitting lens 67 is fixed to the outer casing 61.
  • the light-transmitting lens 67 will be an LED lamp 64, a flexible PCB circuit board 62, a lithium-magnesium alloy heat sink 65 and aluminum.
  • the heat sink 63 is enclosed in the inner cavity of the outer casing 61.
  • FIG. 16 is a schematic structural view of another high-power LED lighting device according to the present invention
  • FIG. 17 is a cross-sectional view taken along line DD of FIG. 16 of the present invention
  • the lighting device is an exploded schematic view of another advertising light.
  • the high-power LED lighting device of the present invention is an advertising lamp 7, similar to the advertising lamp 6 of the sixth embodiment, and the difference between the two is that the advertising lamp 7 in this embodiment is not required.
  • Lithium-magnesium alloy heat sinks are used to assist in conduction heat dissipation.
  • the advertising lamp 7 includes a housing 71 and an aluminum heat sink 73, and further includes a flexible PCB circuit board 72.
  • the front surface of the flexible PCB circuit board 72 is provided with a plurality of LED lamps 74, and the back surface of the flexible PCB circuit board 72 is fixed to the aluminum heat sink 73.
  • the flexible PCB circuit board 72 is disposed in the inner cavity of the outer casing.
  • the flexible PCB circuit board 72 and the aluminum heat sink 73 are all fixed in the outer casing 71.
  • the advertising light 7 also includes a power module 78 that is electrically coupled to the flexible PCB circuit board 72.
  • the bottom of the aluminum heat sink 73 is provided with a plurality of fins 76.
  • the front surface of the advertising lamp 7 is provided with a light-transmitting lens 77, and the light-transmitting lens 77 is fixed to the outer casing 71.
  • the light-transmitting lens 77 closes the LED lamp 74, the flexible PCB circuit board 72 and the aluminum heat sink 73 to the outer casing. In the inner cavity of 71. to The other embodiments are the same as the first embodiment, and will not be described again.
  • the high-power LED lighting device of the present invention utilizes a lithium-magnesium alloy heat sink with a high thermal conductivity, and is matched with a flexible PCB circuit board to quickly transfer heat generated by the flexible PCB circuit board to the aluminum heat sink, and dissipate heat.
  • the effect is good. Therefore, the heat accumulated on the flexible PCB circuit board is very small, so that the temperature of the flexible PCB circuit board is not high, thereby setting up, thereby improving the luminous efficiency of the LED lamp on the flexible PCB circuit board, and extending the LED on the flexible PCB circuit board. The life of the lamp.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

一种大功率LED照明装置，包括外壳（11）、铝散热器（13）、锂镁合金散热片（15）和柔性PCB电路板（12）。柔性PCB电路板（12）的前面设置有多个LED灯（14），柔性PCB电路板（12）的背面固定于锂镁合金散热片（15），锂镁合金散热片（15）固定于铝散热器（13）。该大功率LED照明装置能够提高整体散热效率，并延长LED灯（14）的使用寿命。

Description

大功率 LED照明装置
技术领域
本发明关于大功率 LED 照明技术领域， 尤其是涉及一种结合锂美合金散热片 以及柔性 PCB电路板以改进散热的大功率 LED照明装置。 背景技术
现有技术中， 大功率 LED照明装置常见以各种的使用方式而应用于各式场合。 举例而言， 像是于捕渔时使用的集鱼灯， 对广场提供照明的广场灯， 对隧道提供照 明的隧道灯， 对道路提供照明的路灯， 对广告牌提供照明的广告灯， 俗称 PAR灯的 筒灯等。
大功率 LED照明装置包括外壳、 LED灯组和铝散热器， LED灯组和铝散热器 固定于外壳内， LED灯组贴设于铝散热器。 由于大功率 LED照明装置功率较大， 故于执行照明时， LED灯组产生的热量较多， 导致 LED灯组的温度较高。 因此， 大功率 LED照明装置需要设置散热器等散热装置， 以降低 LED灯组的温度，但是， 现有技术中， 大功率 LED照明装置仅在 LED灯组的背面贴设铝散热器， 铝散热器 虽然具有一定的散热效果， 但是铝散热器的热传导速度较慢， 散热速度仍然不能满 足大功率 LED照明装置的散热要求， 故散热效果仍不理想。 因此， 大功率 LED照 明装置的 LED灯组的温度仍然偏高， 因此有必要予以改进。
请参阅中国台湾专利号 M390637 , 其揭露一种设置有 LED的软性电路板， 但 其是直接舍弃铝合金散热板的使用， 反而造成了整体照明装置设置上和散热上的额 外问题。 发明内容
针对现有技术存在的不足， 本发明的主要目的在于提供一种改进散热的大功率 LED照明装置， 藉由柔性 PCB电路板取代习知的硬式电路板， 使积聚于柔性 PCB 电路板的热量相对于硬式电路板少得多， 故有良好散热效果， 进而提高散热效率， 以进一步延长 LED照明装置的寿命。
为实现上述目的， 本发明采用的技术方案是提供一种大功率 LED照明装置， 包括一外壳、 一铝散热器、 一锂镁合金散热片和一柔性 PCB电路板， 该柔性 PCB 电路板的前面设置有多个 LED灯， 该柔性 PCB电路板的背面固定于该锂镁合金散 热片， 该锂镁合金散热片固定于该铝散热器。
较佳地， 该铝散热器的顶部设置有一平贴部， 该锂镁合金散热片贴设于该平贴 部， 该铝散热器的底部设置有多个翼片。
较佳地， 该锂镁合金散热片嵌设于该铝散热器的顶部。
较佳地， 该大功率 LED照明装置的正面设置有一透光镜片， 该透光镜片固定 于该外壳。
较佳地， 该大功率 LED照明装置内设置有一电源模块， 该电源模块电连接于 该柔性 PCB电路板。
较佳地， 该铝散热器以及该柔性 PCB电路板设置于该外壳的内腔中。
较佳地， 该大功率 LED照明装置为一集鱼灯、 一广场灯、 一路灯、 一 PAR灯、 一隧道灯以及一广告灯的其中之一者。
较佳地， 该大功率 LED照明装置还包括一人体感应元件及 /或一光敏电阻， 且 该人体感应元件及 /或该光敏电阻电连接于该柔性 PCB电路板。
本发明的再一较佳作法， 是提供一种大功率 LED照明装置， 包括一外壳、 一 复合材料散热片和一柔性 PCB电路板， 该柔性 PCB电路板的前面设置有多个 LED 灯， 该柔性 PCB电路板的背面固定于该复合材料散热片。
较佳地， 该复合材料散热片包括一锂镁合金散热片以及一铝散热器， 该铝散热 器的顶部设置有一平贴部， 该锂镁合金散热片贴设于该平贴部， 该铝散热器的底部 设置有多个翼片； 其中， 该锂镁合金散热片嵌设于该铝散热器的顶部。
较佳地， 该大功率 LED照明装置的正面设置有一透光镜片， 该透光镜片固定 于该外壳。
较佳地， 该大功率 LED照明装置内设置有一电源模块， 该电源模块电连接于 该柔性 PCB电路板。
较佳地， 该复合材料散热片以及该柔性 PCB电路板设置于该外壳的内腔中。 本发明的又一较佳作法， 是提供一种大功率 LED照明装置， 包括一外壳、 一 铝散热器和一柔性 PCB电路板， 该柔性 PCB电路板的前面设置有多个 LED灯， 该 柔性 PCB电路板设置于外壳的内腔中， 该柔性 PCB电路板的背面固定于该铝散热 器。
较佳地， 该铝散热器的顶部设置有一平贴部， 该柔性 PCB板的背面贴设于该平 贴部， 该铝散热器的底部设置有多个翼片。
较佳地， 该大功率 LED照明装置的正面设置有一透光镜片， 该透光镜片固定 于该外壳。
较佳地， 该大功率 LED照明装置内设置有一电源模块， 该电源模块电连接于 该柔性 PCB电路板。
本发明大功率 LED照明装置， 藉由柔性 PCB电路板取代习知的硬式电路板， 使积聚于柔性 PCB电路板的热量相对于硬式电路板少得多， 故有良好散热效果，进 而提高散热效率， 以进一步延长 LED照明装置的寿命； 而且， 本发明大功率 LED 照明装置还可利用具有较高导热系数的锂镁合金散热片， 搭配柔性 PCB电路板， 以 迅速将柔性 PCB电路板工作时产生的热量传导到铝散热器， 进一步提升散热效果， 使得积聚于柔性 PCB电路板热量非常少， 确保柔性 PCB电路板的温度不高， 藉此 设置， 可提高柔性 PCB电路板上的 LED灯的发光效率， 并延长柔性 PCB电路板上 的 LED灯的使用寿命。 附图说明
图 1 为本发明大功率 LED照明装置为一筒灯的内部结构示意图。
图 2 为本发明大功率 LED照明装置为一筒灯的分解示意图。
图 3 为本发明大功率 LED照明装置为一集鱼灯的内部结构示意图。
图 4 为本发明大功率 LED照明装置为一集鱼灯的分解示意图。
图 5 为本发明大功率 LED照明装置为一路灯的结构示意图。
图 6 为沿本发明图 5中 A-A方向的剖面示意图。
图 7 为本发明大功率 LED照明装置为一路灯的分解示意图。
图 8 为本发明大功率 LED照明装置为一隧道灯的结构示意图。
图 9 为沿本发明图 8中 B-B方向的剖面示意图。
图 10 为本发明大功率 LED照明装置为一隧道灯的分解示意图。
图 11 为本发明大功率 LED照明装置为一广场灯的内部结构示意图
图 12 为本发明大功率 LED照明装置为一广场灯的分解示意图。
图 13 为本发明大功率 LED照明装置为一广告灯的结构示意图。
图 14 为沿本发明图 13中 C-C方向的剖面示意图。
图 15 为本发明大功率 LED照明装置为一广告灯的分解示意图。 图 16: 为本发明大功率 LED照明装置为另一广告灯的结构示意图。
图 17 : 为沿本发明图 16中 D-D方向的剖面示意图。
图 18 : 为本发明大功率 LED照明装置为另一广告灯的分解示意图。 具体实施方式
请先参阅图 1以及图 2， 图 1为本发明大功率 LED照明装置为一筒灯的内部结 构示意图； 图 2为本发明大功率 LED照明装置为一筒灯的分解示意图。
于此须先说明者为， 本发明的大功率 LED 照明装置通常应用于一户外灯和一 商业照明灯中的至少一者。 该户外灯可以为一集鱼灯、 一广场灯、 一路灯、 一隧道 灯以及一广告灯其中的至少一者， 该商业照明灯可以为筒灯以及广告灯其中的至少 一者。 于本发明的第一实施例中， 本发明的大功率 LED照明装置为一筒灯 1， 筒灯 1包括一具有通气孔 110的外壳 11 以及一铝散热器 13， 还包括一锂镁合金散热片 15和一柔性 PCB电路板 12; 柔性 PCB电路板 12的前面设置有多个 LED灯 14， 柔性 PCB电路板 12的背面固定于锂镁合金散热片 15， 而锂镁合金散热片 15固定 于铝散热器 13。 其中， 柔性 PCB电路板 12、 锂镁合金散热片 15以及铝散热器 13 皆被固定于外壳 11内。
详细而言， 锂镁合金散热片 15为锂镁合金材料制成的片材， 锂镁合金散热片 15具有较高的导热系数， 导热效率更好。 从另一方面而言， 本领域技术人员亦可轻 易地改变设置使锂镁合金散热片 15以及铝散热器 13为一体成型， 即锂镁合金散热 片 15以及铝散热器 13共同形成为一复合材料散热片。 于本实施例中， 使用锂镁合 金散热片 15作为第一导热介质， 提高导热速度， 迅速降低 LED灯 14及柔性 PCB 电路板 12的温度， 使用铝散热器 13作为第二导热介质， 以减少锂镁合金散热片 15 的使用量。 藉此， 在降低成本的同时， 整体导热效果更好。 至于第一导热介质以及 第二导热介质的选用， 于此仅为一列举， 并非作一限制。
于此须注意者为，由于柔性 PCB电路板 12为软质的印刷电路板，因此柔性 PCB 电路板 12可作大角度的弯曲， 可轻易地设置于任何不具有完整平面的元件上， 装 设上更不受空间的局限。 除此之外， 柔性 PCB电路板 12厚度较小， 与硬质印刷电 路板相比较下， 柔性 PCB电路板 12导热速度更快， 而具有更佳的散热效率。 再搭 配上导热效率快的锂镁合金散热片 15，柔性 PCB电路板 12工作时产生的热量即可 迅速将传导到铝散热器 13， 故积聚于柔性 PCB 电路板 12热量非常少， 因此柔性 PCB电路板 12的温度不易升高。
于一较佳实施态样中， 铝散热器 13 的顶部设置有一平贴部， 锂镁合金散热片 15贴设于平贴部， 铝散热器 13的底部设置有多个翼片， 以协助散热。 较佳为， 锂 镁合金散热片 15以嵌设的方式嵌设于铝散热器 13的顶部， 以达节省空间以及紧密 贴合之效。
进一步而言，筒灯 1的正面设置有一透光镜片 17，透光镜片 17固定于外壳 11， 于此同时， 透光镜片 17将 LED灯 14、 柔性 PCB电路板 12、 锂镁合金散热片 15 以及铝散热器 13关阖于外壳 11的内腔中。
更进一步而言， 筒灯 1还包括一人体感应元件 （图未示）及 /或一光敏电阻 （图 未示），且该人体感应元件及 /或该光敏电阻电连接于柔性 PCB电路板上。藉由该人 体感应元件来判断筒灯 1 附近是否有行人走动或物体运动等， 若有， 与柔性 PCB 电路板 12电连接的一电源模块则供电， 使 LED灯 14执行照明； 抑或， 藉由该光 敏电阻来判断周遭环境明暗， 若过暗， 与柔性 PCB电路板 12电连接的一电源模块 则供电， 使 LED灯 14执行开启照明。
请参阅图 3以及图 4， 图 3为本发明大功率 LED照明装置为一集鱼灯的内部结 构示意图； 图 4为本发明大功率 LED照明装置为一集鱼灯的分解示意图。
于第二实施例中， 本发明的大功率 LED照明装置为一集鱼灯 2， 相似于第一实 施例的筒灯 1， 集鱼灯 2包括一外壳 21以及一铝散热器 23， 还包括一锂镁合金散 热片 25和一柔性 PCB电路板 22; 柔性 PCB电路板 22的前面设置有多个 LED灯 24， 柔性 PCB电路板 22的背面固定于锂镁合金散热片 25， 锂镁合金散热片 25固 定于铝散热器 23。 其中， 柔性 PCB电路板 22、 锂镁合金散热片 25以及铝散热器 23皆被固定于外壳 21内。
锂镁合金散热片 25为锂镁合金材料制成的片材， 锂镁合金散热片 25具有较高 的导热系数， 导热效率更好。 除此之外， 柔性 PCB电路板 22厚度较小， 与硬质印 刷电路板相比较下， 柔性 PCB电路板 22导热速度更快， 而具有更佳的散热效率。 搭配导热效率快的锂镁合金散热片 25，柔性 PCB电路板 22工作时产生的热量即可 迅速将传导到铝散热器 23， 故积聚于柔性 PCB 电路板 22热量非常少， 因此柔性 PCB电路板 22的温度不易升高。
于本实施态样中， 铝散热器 23的底部设置有多个翼片 26。 较佳为， 锂镁合金 散热片 25以嵌设的方式嵌设于铝散热器 23的顶部， 以达节省空间以及紧密贴合之 效。 此外， 集鱼灯 2的正面设置有一透光镜片 27， 透光镜片 27固定于外壳 21， 于 此同时， 透光镜片 27将 LED灯 24、 柔性 PCB电路板 22、 锂镁合金散热片 25以 及铝散热器 23关阖于外壳 21的内腔中。 至于其它细部实施态样则相同于第一实施 例， 于此不再赘述。
请参阅图 5至图 7，图 5为本发明大功率 LED照明装置为一路灯的结构示意图； 图 6为沿本发明图 5中 A-A方向的剖面示意图； 图 7为本发明大功率 LED照明装 置为一路灯的分解示意图。
于第三实施例中， 本发明的大功率 LED照明装置为一路灯 3， 相似于第一实施 例的筒灯 1， 路灯 3包括一外壳 31以及一铝散热器 33， 还包括一锂镁合金散热片 35和一柔性 PCB电路板 32; 柔性 PCB电路板 32的前面设置有多个 LED灯 34， 柔性 PCB电路板 32的背面固定于锂镁合金散热片 35， 锂镁合金散热片 35固定于 铝散热器 33。 其中， 柔性 PCB电路板 32、 锂镁合金散热片 35以及铝散热器 33皆 被固定于外壳 31内。
于本实施态样中， 铝散热器 33的底部设置有多个翼片 36。 较佳为， 锂镁合金 散热片 35以嵌设的方式嵌设于铝散热器 33的顶部， 以达节省空间以及紧密贴合之 效。 此外， 路灯 3的正面设置有一透光镜片 37， 透光镜片 37固定于外壳 31， 于此 同时， 透光镜片 37将 LED灯 34、 柔性 PCB电路板 32、 锂镁合金散热片 35以及 铝散热器 33关阖于外壳 31的内腔中。至于其它细部实施态样则相同于第一实施例， 于此不再赘述。
与前述实施例不同之处在于， 透光镜片 37的表面积可小于外壳 31的表面积， 以于两者组装于一起时（如图 5〜图 7所示者）， 可以留出一个较大的空隙 310， 以 作为一通气孔使用； 更佳者， 为避免来自一外界的液体经通气孔 310进入至外壳 31 内， 于本实施态样中， 路灯 3更包括一防水手段 （图未示）， 较佳为设置于外壳 31 ***， 以防止液体自该外界经由通气孔 310流入外壳 31 内， 并使路灯 3内部电路 维持良好运作。
当然， 若透光镜片 37的表面积约略等于外壳 31的表面积时 （图未示）， 至少 一通气孔则可如前述实施例中所述般， 改设置于外壳 31处， 于此即不再赘述。
请参阅图 8至图 10， 图 8为本发明大功率 LED照明装置为一隧道灯的结构示 意图； 图 9为沿本发明图 8中 B-B方向的剖面示意图； 图 10为本发明大功率 LED 照明装置为一隧道灯的分解示意图。 于第四实施例中， 本发明的大功率 LED照明装置为一隧道灯 4， 相似于第一实 施例的筒灯 1， 隧道灯 4包括一外壳 41以及一铝散热器 43， 还包括一锂镁合金散 热片 45和一柔性 PCB电路板 42; 柔性 PCB电路板 42的前面设置有多个 LED灯 44， 柔性 PCB电路板 42的背面固定于锂镁合金散热片 45， 锂镁合金散热片 45固 定于铝散热器 43。 其中， 隧道灯 4更包括与柔性 PCB电路板 42电连接的一电源模 块 48， 而电源模块 48、 柔性 PCB电路板 42、 锂镁合金散热片 45以及铝散热器 43 皆被固定于外壳 41内。
于本实施态样中， 铝散热器 43的底部设置有多个翼片 46。 较佳为， 锂镁合金 散热片 45以嵌设的方式嵌设于铝散热器 43的顶部， 以达节省空间以及紧密贴合之 效。 此外， 隧道灯 4的正面设置有一透光镜片 47， 透光镜片 47固定于外壳 41， 于 此同时， 透光镜片 47将 LED灯 44、 柔性 PCB电路板 42、 锂镁合金散热片 45以 及铝散热器 43关阖于外壳 41的内腔中。 至于其它细部实施态样则相同于第一实施 例， 于此不再赘述。
请参阅图 11以及图 12， 图 11为本发明大功率 LED照明装置为一广场灯的结 构示意图； 图 12为本发明大功率 LED照明装置为一广场灯的分解示意图。
于第五实施例中， 本发明的大功率 LED照明装置为一广场灯 5， 相似于第一实 施例的筒灯 1， 广场灯 5包括一外壳 51以及一铝散热器 53， 还包括一锂镁合金散 热片 55和一柔性 PCB电路板 52; 柔性 PCB电路板 52的前面设置有多个 LED灯 54， 柔性 PCB电路板 52的背面固定于锂镁合金散热片 55， 锂镁合金散热片 55固 定于铝散热器 53。 其中， 柔性 PCB电路板 52、 锂镁合金散热片 55以及铝散热器 53皆被固定于外壳 51内。
于本实施态样中， 铝散热器 53的底部设置有多个翼片 56。 较佳为， 锂镁合金 散热片 55以嵌设的方式嵌设于铝散热器 53的顶部， 以达节省空间以及紧密贴合之 效。 此外， 广场灯 5的正面设置有一透光镜片 57， 透光镜片 57固定于外壳 51， 于 此同时， 透光镜片 57将 LED灯 54、 柔性 PCB电路板 52、 锂镁合金散热片 55以 及铝散热器 53关阖于外壳 51的内腔中。 至于其它细部实施态样则相同于第一实施 例， 于此不再赘述。
请参阅图 13至图 15， 图 13为本发明大功率 LED照明装置为一广告灯的结构 示意图； 图 14为沿本发明图 13中 C-C方向的剖面示意图； 图 15为本发明大功率 LED照明装置为一广告灯的分解示意图。 于第六实施例中， 本发明的大功率 LED照明装置为一广告灯 6， 相似于第一实 施例的筒灯 1， 广告灯 6包括一外壳 61以及一铝散热器 63， 还包括一锂镁合金散 热片 65和一柔性 PCB电路板 62; 柔性 PCB电路板 62的前面设置有多个 LED灯 64， 柔性 PCB电路板 62的背面固定于锂镁合金散热片 65， 锂镁合金散热片 65固 定于铝散热器 63。 其中， 广告灯 6更包括与柔性 PCB电路板 62电连接的一电源模 块 68， 电源模块 68、 柔性 PCB电路板 62、 锂镁合金散热片 65以及铝散热器 63 皆被固定于外壳 61内。
于本实施态样中， 铝散热器 63的底部设置有多个翼片 66。 较佳为， 锂镁合金 散热片 65以嵌设的方式嵌设于铝散热器 63的顶部， 以达节省空间以及紧密贴合之 效。 此外， 广告灯 6的正面设置有一透光镜片 67， 透光镜片 67固定于外壳 61， 于 此同时， 透光镜片 67将 LED灯 64、 柔性 PCB电路板 62、 锂镁合金散热片 65以 及铝散热器 63关阖于外壳 61的内腔中。 至于其它细部实施态样则相同于第一实施 例， 于此不再赘述。
请参阅图 16至图 18， 图 16为本发明大功率 LED照明装置为另一广告灯的结 构示意图； 图 17为沿本发明图 16中 D-D方向的剖面示意图； 图 18为本发明大功 率 LED照明装置为另一广告灯的分解示意图。
于第七实施例中， 本发明的大功率 LED照明装置为一广告灯 7， 相似于第六实 施例的广告灯 6， 两者之间的差异点在于， 本实施例中的广告灯 7无须锂镁合金散 热片来执行协助传导散热。
广告灯 7包括外壳 71以及一铝散热器 73， 还包括一柔性 PCB电路板 72; 柔 性 PCB电路板 72的前面设置有多个 LED灯 74， 柔性 PCB电路板 72的背面固定 于铝散热器 73， 且柔性 PCB电路板 72设置于外壳的内腔中。 其中， 柔性 PCB电 路板 72以及铝散热器 73皆被固定于外壳 71内。
于本实施例中，仅利用柔性 PCB电路板 72设置于铝散热器 73上， 即能使柔性 PCB电路板 72工作时产生的热量传导到铝散热器 73， 使得柔性 PCB电路板 72的 温度不易升高。 相似于第六实施例， 广告灯 7亦包括与柔性 PCB电路板 72电连接 的一电源模块 78。
于本实施态样中， 铝散热器 73的底部设置有多个翼片 76。 此外， 广告灯 7的 正面设置有一透光镜片 77， 透光镜片 77固定于外壳 71， 于此同时， 透光镜片 77 将 LED灯 74、 柔性 PCB电路板 72以及铝散热器 73关阖于外壳 71的内腔中。 至 于其它细部实施态样则相同于第一实施例， 于此不再赘述。
综上所述， 本发明大功率 LED 照明装置利用具有较高导热系数的锂镁合金散 热片， 搭配柔性 PCB电路板， 以迅速将柔性 PCB电路板工作时产生的热量传导到 铝散热器， 散热效果良好。 因此， 积聚于柔性 PCB 电路板热量非常少， 使得柔性 PCB电路板的温度不高， 藉此设置， 即可提高柔性 PCB电路板上的 LED灯的发光 效率， 并延长柔性 PCB电路板上的 LED灯的使用寿命。
以上所述仅为本发明的较佳实施例， 并非用以限定本发明的权利要求范围， 因 此凡其它未脱离本发明所揭示的精神下所完成的等效改变或修饰， 均应包含于本发 明的范围内。

Claims

权利要求
1、 一种大功率 LED照明装置， 包括一外壳以及一铝散热器， 其特征在于： 还 包括一锂镁合金散热片和一柔性 PCB电路板， 该柔性 PCB电路板的前面设置有多 个 LED灯， 该柔性 PCB电路板的背面固定于该锂镁合金散热片， 该锂镁合金散热 片固定于该铝散热器。
2、 根据权利要求 1所述的大功率 LED照明装置， 其特征在于： 该铝散热器的 顶部设置有一平贴部， 该锂镁合金散热片贴设于该平贴部， 该铝散热器的底部设置 有多个翼片。
3、 根据权利要求 2所述的大功率 LED照明装置， 其特征在于： 该锂镁合金散 热片嵌设于该铝散热器的顶部。
4、 根据权利要求 3所述的大功率 LED照明装置， 其特征在于： 该大功率 LED 照明装置的正面设置有一透光镜片， 该透光镜片固定于该外壳。
5、 根据权利要求 4所述的大功率 LED照明装置， 其特征在于： 该大功率 LED 照明装置内设置有一电源模块， 该电源模块电连接于该柔性 PCB电路板。
6、 根据权利要求 5所述的大功率 LED照明装置， 其特征在于： 该铝散热器以 及该柔性 PCB电路板设置于该外壳的内腔中。
7、 根据权利要求 1所述的大功率 LED照明装置， 其特征在于： 该大功率 LED 照明装置为一集鱼灯、 一广场灯、 一路灯、 一 PAR灯、 一隧道灯以及一广告灯的其 中之一者。
8、 根据权利要求 1所述的大功率 LED照明装置， 其特征在于： 还包括一人体 感应元件及 /或一光敏电阻， 且该人体感应元件及 /或该光敏电阻电连接于该柔性 PCB电路板。
9、 一种大功率 LED照明装置， 包括一外壳， 其特征在于： 还包括一复合材料 散热片和一柔性 PCB电路板， 该柔性 PCB电路板的前面设置有多个 LED灯， 该柔 性 PCB电路板的背面固定于该复合材料散热片。
10、 根据权利要求 9所述的大功率 LED照明装置， 其特征在于： 该复合材料 散热片包括一锂镁合金散热片以及一铝散热器， 该铝散热器的顶部设置有一平贴 部， 该锂镁合金散热片贴设于该平贴部， 该铝散热器的底部设置有多个翼片； 其中， 该锂镁合金散热片嵌设于该铝散热器的顶部。
11、根据权利要求 10所述的大功率 LED照明装置，其特征在于：该大功率 LED 照明装置的正面设置有一透光镜片， 该透光镜片固定于该外壳。
12、根据权利要求 11所述的大功率 LED照明装置，其特征在于：该大功率 LED 照明装置内设置有一电源模块， 该电源模块电连接于该柔性 PCB电路板。
13、 根据权利要求 12所述的大功率 LED照明装置， 其特征在于： 该复合材料 散热片以及该柔性 PCB电路板设置于该外壳的内腔中。
14、 一种大功率 LED 照明装置， 包括一外壳以及一铝散热器， 其特征在于： 还包括一柔性 PCB电路板， 该柔性 PCB电路板的前面设置有多个 LED灯， 该柔性 PCB电路板设置于外壳的内腔中， 该柔性 PCB电路板的背面固定于该铝散热器。
15、 根据权利要求 14所述的大功率 LED照明装置， 其特征在于： 该铝散热器 的顶部设置有一平贴部， 该柔性 PCB板的背面贴设于该平贴部， 该铝散热器的底部 设置有多个翼片。
16、根据权利要求 15所述的大功率 LED照明装置，其特征在于：该大功率 LED 照明装置的正面设置有一透光镜片， 该透光镜片固定于该外壳。
17、根据权利要求 16所述的大功率 LED照明装置，其特征在于：该大功率 LED 照明装置内设置有一电源模块， 该电源模块电连接于该柔性 PCB电路板。
PCT/CN2012/078304 2011-07-07 2012-07-06 大功率led照明装置 WO2013004195A1 (zh)

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CN201120238238XU CN202165932U (zh) 2011-07-07 2011-07-07 一种改进散热的led广告灯
CN201120238226.7 2011-07-07
CN2011202382267U CN202165930U (zh) 2011-07-07 2011-07-07 一种改进散热的led路灯
CN201120238220.X 2011-07-07
CN201120238220XU CN202165929U (zh) 2011-07-07 2011-07-07 一种改进散热的led隧道灯
CN201120238238.X 2011-07-07
CN201120238218.2 2011-07-07
CN201120238239.4 2011-07-07
CN201120238217.8 2011-07-07
CN201120238228.6 2011-07-07
CN2011202382394U CN202165933U (zh) 2011-07-07 2011-07-07 一种改进散热的led广告灯
CN2011202382178U CN202165928U (zh) 2011-07-07 2011-07-07 一种改进散热的大功率led广场灯
CN2011202382182U CN202165872U (zh) 2011-07-07 2011-07-07 一种改进散热的par灯
CN2011202382286U CN202166019U (zh) 2011-07-07 2011-07-07 一种改进散热的led集鱼灯

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