CN101788112A - Three-dimensional heat dissipation high-power LED illumination device - Google Patents

Abstract

A high-power LED lighting device with three-dimensional heat dissipation, including at least two high-power LED units that can work independently, a connecting device, at least one LED driver, a shell and a light-transmitting cover, and an electrical connector, connected to each other into a lighting device. The high-power LED unit is composed of at least one high-power LED single tube, an LED radiator, and a fixing device. The heat sink of each LED single tube is directly thermally connected to the radiator through thermally conductive glue or solder; the connecting device The radiators are separated from each other and suspended and fixed in a 3D heat dissipation environment to ensure that each LED works at a normal operating temperature. The LED lighting device of the present invention has the advantages of good heat dissipation, less materials for radiators, low operating temperature of the whole lamp, high luminous efficiency, high lamp power, small and light lamps, low cost, and long service life. Used in the manufacture of lighting fixtures for homes, offices, shopping malls, roads, tunnels, stages, etc.

Description

Three-dimensional cooling high-power LED lighting device

technical field

The invention relates to a semiconductor lighting device, in particular to a three-dimensional (3D) heat dissipation high-power LED lighting device. Used for home, office, shopping mall, road, tunnel, stage and other lighting fixtures.

Background technique

The so-called high-power LED refers to a high-power LED with a single tube power of about 1W and above 1W, also known as a power LED.

Existing high-power LED single tubes cannot be used alone, and must be equipped with heat dissipation devices and good heat dissipation conditions to ensure that the LEDs work at normal operating temperatures. A high-power LED lighting fixture usually has several or even hundreds of high-power LED single tubes. The heat sink of each LED single tube is thermally connected to the radiator through heat-conducting glue or solder, and the large amount of heat generated by the LED during operation is passed through The radiator radiates out. As a semiconductor device, LED is very sensitive to temperature. High temperature will greatly damage the luminous efficiency, service life, reliability and failure rate of LED. Therefore, the design of the heat dissipation device is one of the key links of the high-power LED lighting device.

There are various types of heat sinks for LEDs in the prior art, which can be roughly divided into two categories, namely active heat sinks and passive heat sinks. Active radiators, such as air-cooled radiators with fans, fluid-cooled radiators, radiators with Peltier electronic cooling elements, etc. Passive heat sinks include heat sinks with a series of grooves and fins of various shapes, heat sinks with heat pipes, and the like.

The existing high-power LED lighting commonly used is a passive radiator with a series of grooves and heat dissipation fins of various shapes. The grooves and heat dissipation fins are distributed on a plane or a curved surface to form a two-dimensional (2D ) radiator; a high-power LED single tube, including a star-shaped (Star) LED attached with a metal-based circuit board, is installed on one or several planes of the radiator. The heat sink is made of metal with high thermal conductivity, such as aluminum or aluminum alloy, copper or copper alloy, copper-cored aluminum, and the like. This type of radiator has a long history and has been widely used. At present, high-power LED lighting devices, such as spotlights, street lights, tunnel lights, etc., mostly use this type of radiator. Since the lights are required to work normally in still air, the air in the grooves between the fins is basically still, and the dry air is a good heat insulator, which cannot conduct and dissipate the heat in the middle and deep surfaces of the fins. Therefore, only a small part of the outer surface of the fins near the heat sink is actually used for heat dissipation, and most of the fins are useless, wasting a large amount of metal materials. Therefore, high-power LED lamps require a large volume of heat sinks, resulting in lamps Large in size, heavy in weight and high in cost, the cost of some high-power LED lamp radiators is almost equal to that of LEDs. Not only that, but the large-volume radiator actually becomes a heat store with a large heat capacity, which stores a large amount of heat, which increases the temperature of the whole lamp and reduces the luminous efficiency and service life of the whole lamp.

Most of the self-ballasted LED energy-saving lamps in the prior art also use this kind of radiator. Due to the poor heat dissipation effect of the radiator, it is difficult to make high-power and high-efficiency LED energy-saving lamps. The power of existing LED energy-saving lamps is generally less than 7W. It is necessary to use a large volume radiator to make a higher power LED energy-saving lamp. For example, the 15W LED energy-saving lamp of the prior art is larger than the A21 incandescent lamp, and its weight is about 20 times that of the incandescent lamp; The heat sink of the lamp is as high as 160mm and the diameter is 130mm, while the height of a common 100W incandescent lamp is 118mm, and the diameter of the bulb is 60mm; it is difficult to make energy-saving lamps of 20W-100W or higher power in the prior art. At the same time, the luminous efficiency is also significantly reduced due to poor heat dissipation; even if there are some ventilation holes on the radiator or lampshade, such as Chinese patents 03207297. , the heat dissipation effect is poor, and it is still difficult to make high-power, high-efficiency LED energy-saving lamps.

Most of the LED street lamps and tunnel lamps in the prior art also use this kind of radiator. Since this type of lamp requires a larger output luminous flux, that is, a higher power LED is required, the contradiction between large volume and high cost of the radiator is even more serious. protrude.

Therefore, how to improve the heat dissipation efficiency of the radiator and reduce the volume weight and cost of the radiator is of great significance to the development of LED lighting technology.

Contents of the invention

The object of the present invention is to overcome the above-mentioned deficiencies, and provide a high-power LED lighting device with 3D heat dissipation, which has good heat dissipation effect, small volume, light weight, less metal consumption, low cost, high luminous efficiency, and long life. 10W-100W or higher power LED energy-saving lamps become possible, making it possible to manufacture light-weight, low-cost LED street lamps.

The 3D heat dissipation high-power LED lighting device of the present invention includes: at least two high-power LED units that can work independently, a connecting device, at least one LED driver, a housing, and an electrical connector; the high-power LED unit, LED driver, housing, connection device and electrical connector are interconnected to form a self-ballasted LED lighting device-LED energy-saving lamp; each high-power LED unit that can work independently is composed of at least one high-power LED single tube, and one LED heat dissipation The driver and a housing for fixing a high-power LED single tube and a light-transmitting housing; the connecting device includes at least one pillar and an LED unit connecting plate, one end of the pillar is connected to the driver housing, and the other end is connected to the LED The unit connection boards are connected; the connection device separates the radiators from each other and fixes them in the air to work in a 3D heat dissipation environment. The heat sink of the high-power LED single tube is directly thermally connected to the radiator through thermal conductive glue or solder , each radiator is surrounded by air that can circulate freely, ensuring that each LED works at a normal operating temperature, making it possible to manufacture 10W-100W or greater power LED energy-saving lamps; the connecting device connects the various power LED units The electric connection wires of the electrodes of the LED units of each power are connected to the driver through the connecting device; the heat sink is a heat sink with a series of grooves and heat dissipation fins.

The connecting board for fixing each LED unit in the present invention is a circuit board, or a metal or plastic board plus a circuit board; each LED unit is fixed on the connecting board with glue or screws; the connecting board and the pillar are auxiliary radiators.

The light-transmitting cover of the LED unit of the present invention is an anti-glare cover, which is milky white, frosted, colored or transparent, and can also be a cover with a series of small prisms and small lenses.

The light-transmitting cover of the present invention is an anti-glare cover, and there may be one for each LED unit, or one shared by each LED unit.

The light-transmitting cover of the present invention is a colored cover, and its transmission spectrum is matched with the luminescence spectrum of the LED to improve the color rendering index of the LED to make a high color rendering index LED lamp.

The radiator of the present invention is a radiator with a series of grooves and cooling fins; it is made of high thermal conductivity metal aluminum or aluminum alloy, copper or copper alloy, copper core aluminum, ceramics, etc.; the shape of the radiator is Cylindrical, conical, pagoda, spherical or other shapes of various shapes; grooves and fins are in the shape of grooves and fins parallel to or perpendicular to the axis of the radiator, or spiral grooves and cooling fins.

When the heat sink of the present invention is made of aluminum or aluminum alloy, a copper or high heat conductivity metal core with higher thermal conductivity is added to the joint of the heat sink of the high-power LED single tube to improve the heat transfer capacity of the heat sink.

The lead-out line of the electrode of at least one high-power LED single tube of the high-power LED unit of the present invention is led out from the other end of the heat sink through the through hole on the heat sink, or directly from the side of the LED.

The several high-power LED single tubes of the present invention have the same or different luminous colors, so that lighting devices with different color temperatures, different color rendering indexes, high color rendering indexes, different colors, variable colors, and variable color temperatures can be made.

The connection device of the present invention connects the large power LED units to each other, and connects to the driver casing at the same time, and the electric connection wires of the electrodes of each LED are connected to the driver through the connection device, or connected to the The driver; said connecting device also serves as an auxiliary heat sink and is made of metal, ceramic or plastic. The shape of the connecting device can be designed according to the heat dissipation, appearance and mechanical strength of the lamp.

The driver described in the present invention is a converter that converts the input AC or DC voltage into a voltage suitable for LED operation; the driver is a dimming or non-dimming driver, and may also include remote control, light control circuit or programmed automatic Control circuit.

The connection device of the present invention is one of the electrical connection devices in existing lamps and lamps, and is suitable for being installed on different lamp holders or lamps.

The driver described in the present invention can be assembled with the LED unit to form an integrated lamp, and can also be separately installed as a split lamp.

When the lighting device of the present invention is used for lighting roads, tunnels, courtyards, stages, etc., the housing of the lighting device is the connection device that connects the LED units, and the radiators of the LED units are separately installed on the housing and located between the lamp housing The outside of the cavity formed by the light-transmitting cover; there is at least one circuit board on the inner wall of the lamp housing for connecting the electrode leads of the LED units of various powers, and the lead-out wires are connected to the LED driver through the electrical connecting wire; at the same time, there is a light-transmitting cover, a light reflector, and a pole of the lighting device; between each LED unit and the shell of the lighting device, and between the light-transmitting cover and the shell of the lighting device are all moisture-proof and waterproof seals.

Compared with the prior art, the present invention has the advantages of high heat dissipation efficiency, less materials for radiators, small and light lamps, convenient production, flexible design, high luminous efficiency, and long service life. The three-dimensional heat dissipation high-power LED lighting device of the present invention can be used in Manufacture LED lighting fixtures of various sizes and powers for homes, offices, shopping malls, roads, tunnels, and stages.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of a high-power LED unit composed of a single high-power LED tube and a heat sink of the present invention.

Fig. 2 is a structural schematic diagram of another embodiment of a high-power LED unit composed of a single high-power LED tube and a heat sink of the present invention.

Fig. 3 is a structural schematic diagram of another embodiment of a high-power LED unit composed of a single high-power LED tube and a heat sink of the present invention.

Fig. 4 is a schematic structural diagram of an embodiment of the 3D heat dissipation high-power LED integrated lighting lamp of the present invention.

Fig. 5 is a schematic structural diagram of another embodiment of the 3D heat dissipation high-power LED integrated lighting lamp of the present invention.

Fig. 6 is a structural schematic diagram of another embodiment of the 3D heat dissipation high-power LED integrated lighting lamp of the present invention.

Fig. 7 is a schematic structural view of an embodiment of the 3D heat dissipation high-power LED street lamp of the present invention.

In the figure: 1. High-power LED unit; 2. High-power LED single tube; 3. Radiator; 4. Protect and fix the LED shell; 5. LED lens; 6. High-power LED single-tube electrode lead-out line; 7. , heat sink; 8, radiator fins and grooves; 9, screw holes; 10, thermal adhesive; 11, through holes; 12, high-power LED unit electrode leads; 13, high-power LED with metal core Unit; 14. Board for fixing high-power LED unit; 15. Circuit board; 16. Conductive layer on circuit board; 17. Solder; 18. Copper core; 19. Fixing device; 20. Sealing ring; 21. Integrated three-dimensional 22. Connection device; 22a. Pillar; 22b. Connection board; 23. Driver; 24. Driver shell; 25. Lamp holder; 26. Lead wire; 27. Circuit board; 28. Air flow; 29. PAR type lamp; 30, three-dimensional heat dissipation high-power LED street lamp; 31, street lamp shell; 32, pole; 33, light-transmitting cover; 34, lead wire; 35 light reflector; 36, glue;

Detailed ways

Example 1

The present invention will be described in detail below in conjunction with the accompanying drawings. Fig. 1 is a structural diagram of an embodiment of a high-power LED unit composed of a high-power LED and a heat sink of the present invention. The high-power LED unit 1 is composed of at least one high-power LED single tube 2, a heat sink 3 and a housing 4 for protecting and fixing the LED; the high-power LED single tube can be used in various forms of high-power LED single tubes , 5 in Fig. 1 is the lens of high-power LED single tube, it can adopt the lens of different shapes according to the requirement of the output light distribution of lighting device; 6 is the electrode lead-out line of high-power LED single tube; 8 is the cooling fin of radiator The groove between the sheet and the fins is used for heat dissipation; the screw hole 9 is used as a heat sink for connecting the lighting device, and the outer surface of the heat sink 7 of the high-power LED single tube 2 is connected to the heat sink through thermal conductive glue or solder 10 3 connections. The high-power LED single-tube electrode lead wire 6 is led out through the through hole 11 in the radiator 3, and the high-power LED unit electrode lead wire 12 is used for connecting to a circuit board or a driver.

Example 2

FIG. 2 is a structural schematic diagram of an embodiment of the high-power LED unit housing 4 with a light-transmitting cover 4a of the present invention. The light-transmitting case 4a is an anti-glare case, which is milky white, frosted, colored or transparent, and can also be a case with a series of small prisms and small lenses; the light-transmitting case is The colored cover, whose transmission spectrum matches the luminescence spectrum of the LED, is used to improve the color rendering index of the LED, so as to make a high color rendering index LED lamp. The meanings represented by other numbers in Fig. 2 are the same as those in Fig. 1 .

Example 3

Fig. 3 is a schematic diagram of the structure of a high-power LED unit with a metal core. The high-power LED unit 13 with a metal core is fixed on the lighting device housing or the substrate 14; 15 is a circuit board for connecting various power LED units; 16 is the conductive layer of the circuit board 15, and the high-power LED single tube The electrode lead wire 6 of 2 is soldered to the conductive layer 15 with solder 17 . When the radiator 3 is made of aluminum alloy, in order to improve the heat conduction capability of the radiator itself, a copper or high thermal conductivity metal core 18 with higher thermal conductivity can be added at the thermal connection with the high-power LED single tube 2 heat sink 7 . Fixing screw 19 is a fixing device for high-power LED unit 13 and circuit board 15, illuminating device housing or substrate 14; The meanings represented by other numbers in FIG. 3 are the same as those in FIG. 1 .

Example 4

FIG. 4 is a structural schematic diagram of an embodiment of the integrated 3D heat dissipation high-power LED energy-saving lamp 21 of the present invention. The integrated 3D heat dissipation high-power LED energy-saving lamp 21 includes several high-power LED units 1, a connecting device 22, an LED driver 23 and its driver housing 24, and a lamp holder 25; the connecting device 22 consists of at least one The pillar 22a is composed of at least one connecting plate 22b. One end of the pillar 22a is connected to the housing 24 of the driver 23, and the other end is connected to the connecting plate 22b; , and the lamp holder 25 are connected to each other to form an integrated three-dimensional heat dissipation high-power LED energy-saving lamp 21. Figure 3 shows an example with 9 high power LED units. (A) in Fig. 3 is its side view, (B) is the distribution diagram of the high-power LED unit. Each LED unit is connected to each other by the connection device 22, the electrode lead-out wire 12 of each large-power LED unit is connected with the driver 23 through the connection device 22, and the input of the driver 23 is connected with the lamp cap 25 through the lead wire 26, and is used for connecting an external power source; Connect the external power supply and each LED can emit light. The electrode leads 12 of each LED can be directly connected to the driver, or can be connected to the driver after being connected to the circuit board 27 in the connecting device 22 .

Described connection board is metal, plastic board plus circuit board or is circuit board; Fig. 4 is the example of metal, plastic board plus circuit board; Each LED unit is fixed on described connection board with glue (as shown in Fig. 5) or screw Above, Figure 4 is an example of fixing with screws; the connecting plate and the pillar are also auxiliary heat sinks for the lamp.

The light-transmitting cover of the LED unit may have one for each LED unit, or one shared by multiple LED units; FIG. 4 shows an example of one light-transmitting cover for each LED unit.

The light-transmitting cover of the present invention is a colored cover, and its transmission spectrum is matched with the luminescence spectrum of the LED to improve the color rendering index of the LED to make a high color rendering index LED lamp.

The several high-power LED single tubes 2 have the same or different luminous colors, so that lighting devices with different color temperatures, different color rendering indexes, high color rendering indexes, different colors, variable colors, and variable color temperatures can be made.

The driver 23 is a converter that converts the input AC or DC voltage into a voltage suitable for high-power LED operation; the driver is a dimming or non-dimming driver, a color-changing or color-changing driver, and may also include Light control circuit or programming automatic control circuit; the driver 23 can be installed together with the LED to form an integrated energy-saving lamp, and can also be installed separately as a split lamp.

The various power LED units 1 are connected to each other by the connection device 22 and fixed in the air. The air flow between the LED units extends in all directions, as shown by 28 in FIG. 3 , so that the heat generated by the high-power LED can be effectively taken away , to ensure that various power LEDs can work at their normal operating temperature, making it possible to manufacture 10W-100W or higher power LED energy-saving lamps. The LED energy-saving lamp radiator has high heat dissipation efficiency, small size, light weight, low cost, high luminous efficiency and long service life.

Example 5

FIG. 5 is a schematic structural diagram of an embodiment of a PAR type 3D heat-dissipating high-power LED lighting lamp 29 of the present invention. It includes several high-power LED units 1 to form a PAR lamp-type integrated lamp. Figure 5 shows an example of 19 high-power LED units, in which (C) is a side view, and (D) is a distribution diagram of the LED units. The meanings represented by other numbers in FIG. 5 are the same as those in FIG. 4 .

Fig. 6 is a structural schematic diagram of another embodiment of the integrated 3D heat dissipation high-power LED energy-saving lamp 21a of the present invention. As shown in Figure 6, the plurality of LED units share a light-transmitting case 4a, and the connecting board 22b is a circuit board; a plurality of LED units 1 and the light-transmitting case 4a are fixed on the circuit board 22b with glue 36 The heat sink 3 of the LED unit 1 is thermally connected to the heat sink 7 of the LED single tube 2 through thermally conductive glue and solder, and the heat sink 3 of each LED is separated by the pillar 22a and the connecting plate 22b and suspended and fixed on the transparent cover 4a Outside the cavity formed by the circuit board 22b, the surroundings of each radiator are free-flowing air to ensure that each LED can dissipate heat effectively; the side of the circuit board facing the light-transmitting casing, except for the light-emitting window of the LED, is a high-light reflection Rate surface to improve the effective luminous efficiency of the lamp; 37 is a fixing ring for fixing the light-transmitting casing 4a and the circuit board 22b, made of plastic, metal or ceramics. The meanings represented by other numbers in FIG. 6 are the same as those in FIG. 4 .

Example 7

FIG. 7 is a schematic structural view of an embodiment of a 3D heat-dissipating high-power LED lighting device 30 for a street lamp of the present invention. The street lamp 30 of 3D heat dissipation high-power LED includes several high-power LED units 1 or 13, the heat sink 3 is pagoda-shaped or other shapes, a street lamp shell 31 and its pole 32, a light-transmitting cover 33, and an LED The driver 23 and its input and output connection lines 34 can also be installed with a light reflector 35 if necessary. The street lamp housing 31 is the connecting device of each large-power LED unit, and is made of metal or plastic. There is at least one circuit board 15 for connecting each LED electrode lead wire on the inner wall of the street lamp housing 31. The circuit board 15 is divided into several parts. Small pieces, in order to avoid the different thermal expansion coefficients of the circuit board 15 and the housing 31 to cause deformation of the housing and the circuit board, resulting in electrical or thermal connection failure; the transparent cover 33 is a plane or curved surface, made of glass, tempered glass or plastic. The axis of each LED unit, that is, the direction of the output light, can be arranged according to the requirements of the output light distribution of the lamp. Between each LED unit 1 or 13 and the lamp housing 31 , between the light-transmitting cover 33 and the lamp housing 31 are moisture-proof and waterproof seals. The heat sink 3 of the LED unit is installed separately outside the cavity formed by the lamp housing 31 and the light-transmitting cover 33, and works in a 3D heat dissipation environment. The air that can circulate freely around the lamp can be effectively dissipated; the temperature of the LED and its driver in the lamp housing is very low, thus forming a thin and light, wind and rain resistance, high heat dissipation efficiency, less material used in the radiator, and high luminous efficiency. , Long life LED street lights.

By changing the shape of the lamp shell 31 and its connecting device, it can be made into a tunnel lamp or a stage lamp for tunnel or stage lighting.

Claims (10)

1. a 3D heat dissipation high-power LED illumination device includes: two great power LED unit, a jockey, the driver of at least one LED, a shell, an electric connector at least; Described great power LED unit, led driver, shell, jockey and electric connector are interconnected to one from the ballast high-power LED energy-saving lamp; It is characterized in that: described great power LED unit is made up of at least one great power LED single tube, a LED radiator, a fixture and a light transmission casing, the heat sink of each LED single tube directly is connected with radiator heat through heat-conducting glue or welding compound, each radiator has enough area of dissipations, but around radiator is under the conditions of air of free flow, and each great power LED unit all can work independently; Described jockey includes at least one pillar and a LED unit connecting plate, and an end of described pillar is connected with drive enclosure, and the other end is connected with LED unit connecting plate; Described jockey is working in the environment of the mutually discrete and unsettled 3D of the being fixed on heat radiation of the radiator of each LED unit, but each radiator around be the air of free flow; The electric connection line of the electrode of each great power LED unit is connected to driver through jockey; Described radiator is the radiator that has a series of grooves and radiating fin.

2. 3D heat dissipation high-power LED illumination device according to claim 1 is characterized in that: the described connecting plate of fixing each LED unit is a circuit board, or metal, plastic plate add circuit board; Each LED unit is fixed on the described connecting plate with glue or screw, and described connecting plate and pillar are additional cooler.

3. 3D heat dissipation high-power LED illumination device according to claim 1 is characterized in that: described light transmission casing is dazzled the light shield shell for disappearing, and for milky white, frosted, coloured or transparent case, also can be the case that has a series of little prisms, lenslet; But each LED unit respectively has one, but also one of each LED units shared.

4. according to claim 1 and 3 described 3D heat dissipation high-power LED illumination devices, it is characterized in that: described light transmission casing is coloured case, its transmitted spectrum matches, is used to improve the colour rendering index of LED with the luminescent spectrum of LED, to make high color rendering index (CRI) LED lamp.

5. 3D heat dissipation high-power LED illumination device according to claim 1, it is characterized in that the great power LED single tube of described each great power LED unit, be used to make the lighting device of different-colour, different colour rendering index, not homochromy, changeable colour, variable colour temperature by at least one identical or different illuminant colour.

6. 3D heat dissipation high-power LED illumination device according to claim 1 is characterized in that described driver is transformed into the converter of the voltage that is suitable for LED work for an interchange of input or DC voltage; Described driver comprise light modulation or not dimming driver, variable color or variable color temperature driver, remote control, light-operated circuit driver or programming automatic control circuit driver are arranged; Described driver can be installed together with LED, constitutes the integral type lighting device, also can be installed separately, and constitutes split type lighting device.

7. 3D heat dissipation high-power LED illumination device includes: several great power LED unit, lamp housing and jockey thereof, a light transmission casing, the input and output connecting line of the driver of a LED and driver thereof; The driver of described great power LED unit, lamp housing and jockey thereof, light transmission casing, LED and driver thereof are interconnected to 3D heat dissipation high-power LED lamp; It is characterized in that: described several great power LED unit are made up of at least one great power LED single tube, a LED radiator, a fixture, the heat sink of each LED single tube directly is connected with radiator heat through heat-conducting glue or welding compound, each radiator has enough area of dissipations, but around radiator is under the conditions of air of free flow, and each LED unit all can work independently; The radiator of described several great power LED unit is by mutual discrete being fixed on the lamp housing, and be positioned at outside the cavity of lamp housing and light transmission casing formation, but around each radiator is the air of free flow, and each radiator is worked in the environment of 3D heat radiation; The installed surface of the axle vertical lamp shell of each LED unit is installed; At least one circuit board that is used to connect each great power LED cell electrode lead-in wire arranged on the inwall of described lamp housing, and its lead-out wire is connected to led driver through electric connection line; Described radiator is the radiator that has a series of grooves and radiating fin.

8. 3D heat dissipation high-power LED illumination device according to claim 7 is characterized in that described diffuser is that plane or curved surface are made by glass, safety glass or plastics.

9. 3D heat dissipation high-power LED illumination device according to claim 7 is characterized in that described lamp housing and jockey thereof, can be the lamp housing and the lamp pole thereof of street lamp, or the fixture of the lamp housing of Tunnel Lamp and lamp thereof; In the cavity that lamp housing and light transmission casing constitute reflective optical system is installed; Between each LED unit and the illuminating apparatus outer shell, be the moistureproof and waterproof sealing between diffuser and the illuminating apparatus outer shell.

10. 3D heat dissipation high-power LED illumination device according to claim 7 is characterized in that the axle of described each LED unit can be exported photodistributed requirement by lamp and installs by different angles, to make the photodistributed lighting devices of different outputs.

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