CN101718424A - Magnesium alloy heat radiating structure of large-power LED lamp - Google Patents
Magnesium alloy heat radiating structure of large-power LED lamp Download PDFInfo
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- CN101718424A CN101718424A CN201010002553A CN201010002553A CN101718424A CN 101718424 A CN101718424 A CN 101718424A CN 201010002553 A CN201010002553 A CN 201010002553A CN 201010002553 A CN201010002553 A CN 201010002553A CN 101718424 A CN101718424 A CN 101718424A
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 110
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- 239000000741 silica gel Substances 0.000 claims abstract description 36
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
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Abstract
The invention relates to a magnesium alloy heat radiating structure of a large-power LED lamp, which comprises a copper-based copper-coating plate, a plurality of LED bulbs and a magnesium alloy heat radiating shell, wherein each LED bulb is provided with a positive electrode, a negative electrode and a bottom heating end; the copper-based copper-coating plate is made of metal copper with good heat conducting performance and provided with an LED access surface and a connection heat conducting surface; the LED bulbs are electrically connected to the LED access surface of the copper-based copper-coating plate; a silica gel heat conducting layer is connected between the LED bulbs and the copper-based copper-coating plate; the magnesium alloy heat radiating shell is connected with the copper-based copper-coating plate and made of magnesium alloy materials and comprises a cover body and a plurality of heat radiating fins; the copper-based copper-coating plate is fixedly arranged in the lamp cavity of the magnesium alloy heat radiating shell; a connecting silica gel heat conducting layer is arranged between the copper-based copper-coating plate and the lamp cavity; and the copper-based copper-coating plate can also be replaced by a magnesium alloy copper-coating plate during practice.
Description
Technical field
The present invention relates to a kind of radiator structure, be meant that especially a kind of magnesium alloy that utilizes is made into heat-dissipating casing, and the LED lamp is arranged on LED lamp radiator structure on copper substrate or the magnalium substrate.
Background technology
Photoelectron technology is after information technology, the new technology revolution again that starts in the world.One of its important content is to be new lighting source with light emitting semiconductor device, progressively substitutes the conventional incandescent lamp source.Its important symbol is a semiconductor light-emitting-diode, is called for short LED.As light source, the LED advantage is embodied in three aspects: energy-saving and environmental protection and long-life.LED does not rely on filament heating to obtain light source, the energy conversion efficiency height, have only in theory the incandescent lamp energy consumption 10%, the fluorescent lamp energy consumption 50%.Aspect voltage, LED uses the low pressure insulating power supply, and supply voltage is between 25-35V, and is different and different according to product, so it is a safer power supply of ratio use high voltage source, is specially adapted to the public place.Aspect applicability, its volume is very little, and each unit LEDs small pieces is the square or circular of 3-8mm, thus can be prepared into the device of different shape, and be suitable for variable environment.Aspect the response time, well-known, the response time of incandescent lamp is a Millisecond, and the response time of LED lamp is a nanosecond.
As mentioned above, just because of numerous advantages of LED under the social background of advocating energy-saving and emission-reduction now, along with the development of semiconductor science technology, the high brightness LED manufacturing technology obtains quantum jump, and each country all wishes to promote and adopt the LED technology of high light efficiency.And it is current, the problem outstanding behaviours of carrying out the existence of illuminating energy-saving product exists: technical merit is low, unstable product quality, life-span is short, original production light fixture and LED light fixture have distinct difference on production technology, traditional light fixture (sodium vapor lamp, halogen family lamp) requires to grasp: light source quality, light projector effect, shape-designing, and the LED lamp requires to grasp: light source quality, circuit design, light projector effect, operating temperature, radiating effect, shape-designing, the key of LED characteristic of a navigation light amount is circuit, operating temperature and radiating effect.Controlling bad operating temperature and radiating effect can make the LED lamp life-span seriously shorten.Therefore, the production key of LED lamp is the maintenance and the good production technology process of radiating effect of operating temperature.So the selection of heat sink material plays a part fatal with being connected of each link of LED.
With regard to the LED lamp that occurs on the market now, its preparation method generally all be at first with the copper circuit by epoxy resin bonding on insulation board, such structure can reach circuit turn-on, the effect of partiting thermal insulation, then the pin with LED lamp pearl is welded on the copper circuit one by one, at last, the aluminium base that is welded with LED lamp pearl is connected on the heat sink or heat-dissipating casing of aluminium alloy, but the LED light fixture product that utilizes this as mentioned above method to produce, its integral heat sink performance is unsatisfactory, because the bad performance of its heat dispersion, must shorten the service life of whole light fixture product, and this is the major defect for conventional art.
Summary of the invention
The invention provides a kind of magnesium alloy heat radiating structure of high-powered LED lamp, it utilizes magnesium alloy to be made into heat-dissipating casing, and thereby the LED lamp is arranged on to reach on copper substrate or the magnalium substrate improves the purpose that LED lamp work calories distributes efficient, and this is to be main purpose of the present invention.
The invention provides a kind of method of making the magnesium alloy heat radiating structure of high-powered LED lamp, adopt this method can produce the higher LED lamp of radiating efficiency, thereby promote the radiating efficiency of LED lamp, and this is to be another purpose of the present invention.
In order to solve above technical problem, the technical solution used in the present invention is: the magnesium alloy heat radiating structure of high-powered LED lamp, it comprises the copper-clad plate of copper base, some LED lamp pearls and magnesium alloy heat-dissipating casing, wherein, this LED lamp pearl has positive electrode, negative electrode and bottom heating end, this LED lamp pearl is in work, at first need this positive electrode and this negative electrode place in circuit, this LED lamp pearl electrified light emitting then, and the heat that this LED lamp pearl work is produced in the process of this LED lamp pearl electrified light emitting mainly concentrates on the end position place that generates heat, this bottom.
This copper base copper-clad plate is become by heat conductivility good metal copper, this copper base copper-clad plate has LED and inserts face and connect thermal conductive surface, some these LED lamp pearls are connected electrically on this LED access face of this copper base copper-clad plate, further describe for, this positive electrode of this LED lamp pearl and this negative electrode by the welding mode be connected electrically on this LED access face.
Be connected with the silica gel heat-conducting layer between this LED access face of this LED lamp pearl and this copper base copper-clad plate, further describe to, this silica gel heat-conducting layer and be connected between this LED access face of this bottom heating end of this LED lamp pearl and this copper base copper-clad plate.
The heat that this LED lamp pearl work is produced in the process of this LED lamp pearl electrified light emitting at first is passed to this silica gel heat-conducting layer from this bottom heating end, then by this silica gel heat-conducting layer heat further is passed in this copper base copper-clad plate.
This magnesium alloy heat-dissipating casing is connected with this copper base copper-clad plate, this magnesium alloy heat-dissipating casing is made by magnesium alloy materials, the density of this magnesium alloy materials is 1.74-1.8g/cm3, specific heat is: 0.209cal/g. ℃, its transmitance is 92% when optical wavelength is the 200-2000 micron, its transmitance is greater than 92% when optical wavelength is the 2.5-7 micron, this magnesium alloy materials is high-pressure casting, low pressure casting, the magnesium alloy of extrusion modling, its crystallization temperature is broad at interval, easy mode crystallization with mushy freezing, so there is tangible dendrite formation, air permeability and good is arranged, good conductive performance, electric conductivity height, the conductivity of heat height, electromagnetic wave shielding performance is good, and the intensity of magnesium alloy is also than aluminium alloy height, and its corrosion resistance has surpassed pack alloy A380, and the high heat-dissipation that has other metals not possess, so magnesium alloy shell is more suitable for the high-powered LED lamp heat radiation.
This magnesium alloy heat-dissipating casing comprises cover body and some fin, this cover body upwards is concaved with the lamp chamber from its bottom surface, this lamp chamber has opening and heat radiation joint face, some these fin connections are arranged on this cover body, this copper base copper-clad plate is fixedly installed in this lamp chamber of this magnesium alloy heat-dissipating casing, be provided with between this connection thermal conductive surface of this copper base copper-clad plate and this heat radiation joint face in this lamp chamber and be connected the silica gel heat-conducting layer, after the heat that this LED lamp pearl work is produced in the process of this LED lamp pearl electrified light emitting is passed in this copper base copper-clad plate, further heat is passed to this magnesium alloy heat-dissipating casing by this connection silica gel heat-conducting layer, and finish the process that the heat transmission is distributed by the material behavior of this magnesium alloy heat-dissipating casing, this magnesium alloy heat-dissipating casing outwards distributes heat by this cover body and some this fin.
At last, be provided with waterproof apron between this copper base copper-clad plate and this magnesium alloy heat-dissipating casing, be connected with Transparent lamp shade on this opening of this magnesium alloy heat-dissipating casing, this Transparent lamp shade is connected on this opening of this magnesium alloy heat-dissipating casing by the clamping integrated circuit board.
Aforesaid this copper base copper-clad plate also can be replaced by the magnesium alloy copper-clad plate in practice.
In the magnesium alloy heat radiating structure of making high-powered LED lamp of the present invention, its production method comprises the steps:
The first step, the silica gel heat-conducting layer spread upon the bottom of LED lamp pearl, this LED lamp pearl has positive electrode, negative electrode and bottom heating end, and this LED lamp pearl is stained with is combined in the copper-clad plate of copper base, this copper base copper-clad plate has LED and inserts face and connect thermal conductive surface, this LED lamp pearl is stained with on this LED access face that is combined in this copper base copper-clad plate, this moment, this silica gel heat-conducting layer is between this LED access face of this bottom of this LED lamp pearl heating end and this copper base copper-clad plate, and this copper base copper-clad plate is become by heat conductivility good metal copper.
Second step, this positive electrode and this negative electrode that will aforesaid this LED lamp pearl be welded on respectively in this copper base copper-clad plate, this moment, and this LED access face formation electrical connection of this positive electrode of this LED lamp pearl and this negative electrode and this copper base copper-clad plate.
The 3rd step, in the magnesium alloy heat-dissipating casing, smear to be provided with and connect the silica gel heat-conducting layer, this magnesium alloy heat-dissipating casing comprises cover body and some fin, this cover body upwards is concaved with the lamp chamber from its bottom surface, this lamp chamber has opening and heat radiation joint face, some these fin connections are arranged on this cover body, this connection silica gel heat-conducting layer is arranged on this heat conduction joint face, with as mentioned above second the step in this copper base copper-clad plate be fixedly installed in this lamp chamber of this magnesium alloy heat-dissipating casing, this moment, be provided with this between this connection thermal conductive surface of this copper base copper-clad plate and this heat radiation joint face in this lamp chamber and be connected the silica gel heat-conducting layer, at last, utilize connecting screw that this copper base copper-clad plate is fixedly connected in this magnesium alloy heat-dissipating casing, to finish whole step.
Aforesaid this copper base copper-clad plate also can be replaced by the magnesium alloy copper-clad plate in practice.
Beneficial effect of the present invention is: utilize structure of the present invention or preparation method to prolong the service life of LED lamp, energy resource consumption and investment have been reduced, guaranteed saves energy, because pollution elements such as high-power magnesium alloy LED street lamp is not leaded, mercury, without any pollution, it is environmental protection to environment; Shock-resistant, seismic force is strong, the light that LED sends out in visible-range, no ultraviolet ray and infra-red radiation, therefore the magnesium alloy lamp housing has the high-frequency wave shielding, human body is not had injury, radiationless, it is safer.
Description of drawings
Fig. 1 is the perspective exploded view of copper base of the present invention copper-clad plate or magnesium alloy copper-clad plate and LED lamp pearl and magnesium alloy heat-dissipating casing;
Fig. 2 is the connection diagram of copper base of the present invention copper-clad plate or magnesium alloy copper-clad plate and LED lamp pearl;
Fig. 3 is the schematic perspective view of magnesium alloy heat-dissipating casing of the present invention;
Fig. 4 is the cross-sectional view of magnesium alloy heat-dissipating casing of the present invention;
Fig. 5 is the cross-sectional view of magnesium alloy heat-dissipating casing of the present invention and copper-clad plate of copper base or magnesium alloy copper-clad plate;
Fig. 6 is a perspective exploded view of the present invention;
Fig. 7 is the schematic perspective view of the present invention's combination.
The specific embodiment
The magnesium alloy heat radiating structure of (shown in Fig. 1 to 7) high-powered LED lamp, it comprises copper base copper-clad plate 10, some LED lamp pearls 20 and magnesium alloy heat-dissipating casing 30.
Wherein, (as shown in Figure 2) this LED lamp pearl 20 has positive electrode 21, negative electrode 22 and bottom heating end 23, this LED lamp pearl 20 is in work, at first need this positive electrode 21 and this negative electrode 22 places in circuit, these LED lamp pearl 20 electrified light emittings then, and the heat that these LED lamp pearl 20 work are produced in the process of these LED lamp pearl 20 electrified light emittings mainly concentrates on this bottom heating and holds 23 positions.
This copper base copper-clad plate 10 is by leading heat dispersion good metal copper, and this copper base copper-clad plate 10 has LED and inserts face 11 and connect thermal conductive surface 12.
This LED that some these LED lamp pearls 20 are connected electrically in this copper base copper-clad plate 10 inserts on the face 11.
Further describe for, this positive electrode 21 of this LED lamp pearl 20 and this negative electrode 22 mode by welding is connected electrically in this LED and inserts on face 11.
This LED of this LED lamp pearl 20 and this copper base copper-clad plate 10 inserts between the face 11 and is connected with silica gel heat-conducting layer 40.
Further describe between this LED access face 11 of this bottom heating end 23 of being connected this LED lamp pearl 20 for, this silica gel heat-conducting layer 40 and this copper base copper-clad plate 10.
The heat that these LED lamp pearl 20 work are produced in the process of these LED lamp pearl 20 electrified light emittings at first is passed to this silica gel heat-conducting layer 40 from this bottom heating end 23, then by this silica gel heat-conducting layer 40 heat further is passed in this copper base copper-clad plate 10.
This magnesium alloy heat-dissipating casing 30 is connected with this copper base copper-clad plate 10, and this magnesium alloy heat-dissipating casing 30 is made by magnesium alloy materials.
The density of this magnesium alloy materials is 1.74-1.8g/cm3, and specific heat is: 0.209cal/g. ℃, its transmitance is 92% when optical wavelength is the 200-2000 micron, and its transmitance is greater than 92% when optical wavelength is the 2.5-7 micron.
The magnesium alloy of this magnesium alloy materials for adopting high-pressure casting, low pressure casting, extrusion modling to make, its crystallization temperature is broad at interval, easy mode crystallization with mushy freezing, so there is tangible dendrite formation, air permeability and good is arranged, good conductive performance, the electric conductivity height, the conductivity of heat height, electromagnetic wave shielding performance is good, and the intensity of magnesium alloy is also than aluminium alloy height, and its corrosion resistance has surpassed pack alloy A380, and the high heat-dissipation that has other metals not possess, so magnesium alloy shell is more suitable for the high-powered LED lamp heat radiation.
(as shown in Figure 3) this magnesium alloy heat-dissipating casing 30 comprises cover body 31 and some fin 32.
(as shown in Figure 4) this cover body 31 upwards is concaved with lamp chamber 33 from its bottom surface, and this lamp chamber 33 has opening 331 and heat radiation joint face 332.
Some these fin 32 connections are arranged on this cover body 31.
(as shown in Figure 5) this copper base copper-clad plate 10 is fixedly installed in this lamp chamber 33 of this magnesium alloy heat-dissipating casing 30, is provided with between this connection thermal conductive surface 12 of this copper base copper-clad plate 10 and this heat radiation joint face 332 in this lamp chamber 33 to be connected silica gel heat-conducting layer 50.
After the heat that these LED lamp pearl 20 work are produced in the process of these LED lamp pearl 20 electrified light emittings is passed in this copper base copper-clad plate 10, further heat is passed to this magnesium alloy heat-dissipating casing 30 by this connection silica gel heat-conducting layer 50, and finishes the process that the heat transmission is distributed by the material behavior of this magnesium alloy heat-dissipating casing 30.
This magnesium alloy heat-dissipating casing 30 outwards distributes heat by this cover body 31 and some this fin 32.
At last, be provided with waterproof apron 61 between (shown in Fig. 6 to 7) this copper base copper-clad plate 10 and this magnesium alloy heat-dissipating casing 30.
Be connected with Transparent lamp shade 62 on this opening 331 of this magnesium alloy heat-dissipating casing 30, this Transparent lamp shade 62 is connected on this opening 331 of this magnesium alloy heat-dissipating casing 30 by clamping plate 63.
Aforesaid this copper base copper-clad plate 10 also can be replaced by the magnesium alloy copper-clad plate in practice.
In the magnesium alloy heat radiating structure of making high-powered LED lamp of the present invention, its production method comprises the steps: (shown in Fig. 1 to 7)
The first step, silica gel heat-conducting layer 40 is spread upon the bottom of LED lamp pearl 20, this LED lamp pearl 20 has positive electrode 21, negative electrode 22 and bottom heating end 23, and this LED lamp pearl 20 is stained with is combined in the copper base copper-clad plate 10.
This copper base copper-clad plate 10 has LED and inserts face 11 and connect thermal conductive surface 12, this LED lamp pearl 20 is stained with this LED that is combined in this copper base copper-clad plate 10 and inserts on the face 11, this moment, this silica gel heat-conducting layer 40 inserts between the face 11 at this bottom heating end 23 of this LED lamp pearl 20 and this LED of this copper base copper-clad plate 10, and this copper base copper-clad plate 10 is become by heat conductivility good metal copper.
Second step, this positive electrode 21 and this negative electrode 22 of aforesaid this LED lamp pearl 20 is welded on respectively in this copper base copper-clad plate 10, this moment, this positive electrode 21 of this LED lamp pearl 20 and this negative electrode 22 insert face 11 formation electrical connections with this LED of this copper base copper-clad plate 10.
The 3rd step, in magnesium alloy heat-dissipating casing 30, smear to be provided with and connect silica gel heat-conducting layer 50, this magnesium alloy heat-dissipating casing 30 comprises cover body 31 and some fin 32, this cover body 31 upwards is concaved with lamp chamber 33 from its bottom surface, and this lamp chamber 33 has opening 331 and heat radiation joint face 332.
Some these fin 32 connections are arranged on this cover body 31, this connection silica gel heat-conducting layer 50 is arranged on this heat radiation joint face 332, with as mentioned above second the step in this copper base copper-clad plate 10 be fixedly installed in this lamp chamber 33 of this magnesium alloy heat-dissipating casing 30, this moment, be provided with this between this connection thermal conductive surface 12 of this copper base copper-clad plate 10 and this heat radiation joint face 332 in this lamp chamber 33 and be connected silica gel heat-conducting layer 50, at last, utilize connecting screw that this copper base copper-clad plate 10 is fixedly connected in this magnesium alloy heat-dissipating casing 30, to finish whole step.
Aforesaid this copper base copper-clad plate 10 also can be replaced by the magnesium alloy copper-clad plate in practice.
The characteristics of product of the present invention and preparation method are as mentioned above, allow LED bottom metal face tightly contact the copper-clad plate of copper base, by the copper-clad plate of copper base the heat energy high-speed transfer of LED to magnesium alloy shell, thereby reach good heat radiating by the high-strength dissipation of heat of magnesium alloy. Because of LED input electric energy, the luminous energy of output 10% to 20%, all the other 80% to 90% are converted to heat energy. For high-power LED lamp is normally used, must adopt the copper base copper-clad plate with high-efficiency heat conduction performance to absorb whole heat energy that the work of LED bottom produces by silica gel, utilization is dispelled the heat, and the glue densification is connected to and the magnesium alloy lamp housing heat radiation scale of the tool dissipation of heat, gets rid of the heat energy that has a strong impact on the LED life-span.
Product of the present invention and preparation method, at first it can be implemented, and proves according to many experiments, has produced at present 40W, 80W, 120W, 150W magnesium alloy LED street lamp; 60W, 100W magnesium alloy Tunnel Lamp; 1W, 3W, 4W, 5W, 12W magnesium alloy Projecting Lamp, shot-light.
Secondly, product of the present invention and preparation method are used magnesium alloy and are done the perfect adaptation that heat sink material, copper are done Heat Conduction Material in heat conduction, radiator structure, make high-powered LED lamp reach best operating temperature, guarantee, service life of prolongation high-powered LED lamp.
Again, the magnesium alloy among the present invention is combined the illumination of using with LED, has prolonged the service life of lamp, reduced energy resource consumption and investment, guaranteed saves energy, because pollution elements such as high-power magnesium alloy LED street lamp is not leaded, mercury, without any pollution, it is environmental protection to environment; Shock-resistant, seismic force is strong, the light that LED sends out in visible-range, no ultraviolet ray and infra-red radiation, therefore the magnesium alloy lamp housing has the high-frequency wave shielding, human body is not had injury, radiationless, it is safer.
The combination of tradition LED and aluminium alloy, because the thermal inertia of aluminium alloy causes radiating effect undesirable, the LED operating temperature is remained on more than 60 ℃, cause the lost of life to 1 of LED lamp below ten thousand hours, effective combination of product LED of the present invention and magnesium alloy remains between 30 ℃ to 45 ℃ the operating temperature of LED lamp, thereby prolong ten thousand hours to the 100000 hours life-span to 5 of LED lamp
Aluminium alloy density is big, lamp housing weight, weak heat-dissipating, the waste raw material produced; And the density of magnesium alloy is little, and product is light, save material, reduce stress problem that the product deadweight brings, be convenient to install, again nontoxic, pollution-free reusable. Can make energy-saving and environmental protection go on benign cycle so use magnesium alloy to be combined with LED, not only save the energy but also made the investor obtain good energy-conservation repayment for national. Technology of the present invention is applicable to all light fixtures of high-power LED illumination in practice.
Claims (8)
1. the magnesium alloy heat radiating structure of high-powered LED lamp, it is characterized in that: it comprises the copper-clad plate of copper base, some LED lamp pearls and magnesium alloy heat-dissipating casing, wherein, this LED lamp pearl has positive electrode, negative electrode and bottom heating end, this LED lamp pearl is in work, at first need this positive electrode and this negative electrode place in circuit, this LED lamp pearl electrified light emitting then, and the heat that this LED lamp pearl work is produced in the process of this LED lamp pearl electrified light emitting mainly concentrates on this heating end position place, bottom
This copper base copper-clad plate is made by the good metallic copper of heat conductivility; This copper base copper-clad plate has LED and inserts face and connect thermal conductive surface; Some these LED lamp pearls are connected electrically on this LED access face of this copper base copper-clad plate; Be connected with the silica gel heat-conducting layer between this LED access face of this LED lamp pearl and this copper base copper-clad plate; The heat that this LED lamp pearl work produces in the process of this LED lamp pearl electrified light emitting at first is passed to this silica gel heat-conducting layer from this bottom heating end; Then by this silica gel heat-conducting layer heat further is passed in this copper base copper-clad plate
This magnesium alloy heat-dissipating casing is connected with this copper base copper-clad plate, this magnesium alloy heat-dissipating casing is made by magnesium alloy materials, this magnesium alloy heat-dissipating casing comprises cover body and some fin, this cover body upwards is concaved with the lamp chamber from its bottom surface, this lamp chamber has opening and heat radiation joint face, some these fin connections are arranged on this cover body, this copper base copper-clad plate is fixedly installed in this lamp chamber of this magnesium alloy heat-dissipating casing, be provided with between this connection thermal conductive surface of this copper base copper-clad plate and this heat radiation joint face in this lamp chamber and be connected the silica gel heat-conducting layer, after the heat that this LED lamp pearl work is produced in the process of this LED lamp pearl electrified light emitting is passed in this copper base copper-clad plate, further heat is passed to this magnesium alloy heat-dissipating casing by this connection silica gel heat-conducting layer, and finishes the process that the heat transmission is distributed by the material behavior of this magnesium alloy heat-dissipating casing.
2. the magnesium alloy heat radiating structure of the high-powered LED lamp described in claim 1 is characterized in that: this positive electrode of this LED lamp pearl and this negative electrode are connected electrically on this LED access face by the mode of welding.
3. the magnesium alloy heat radiating structure of the high-powered LED lamp described in claim 1 is characterized in that: this silica gel heat-conducting layer is connected between this LED access face of this bottom heating end of this LED lamp pearl and this copper base copper-clad plate.
4. the magnesium alloy heat radiating structure of the high-powered LED lamp described in claim 1, it is characterized in that: the density of this magnesium alloy materials is 1.74-1.8g/cm3, specific heat is: 0.209cal/g. ℃, its transmitance is 92% when optical wavelength is the 200-2000 micron, and its transmitance is greater than 92% when optical wavelength is the 2.5-7 micron.
5. the magnesium alloy heat radiating structure of the high-powered LED lamp described in claim 1, it is characterized in that: last, be provided with waterproof apron between this copper base copper-clad plate and this magnesium alloy heat-dissipating casing, be connected with Transparent lamp shade on this opening of this magnesium alloy heat-dissipating casing, this Transparent lamp shade is connected on this opening of this magnesium alloy heat-dissipating casing by the clamping integrated circuit board.
6. the magnesium alloy heat radiating structure of the high-powered LED lamp described in the claim 1 to 5 any, it is characterized in that: this copper base copper-clad plate can be the magnesium alloy copper-clad plate.
7. make the method for the magnesium alloy heat radiating structure of high-powered LED lamp, it is characterized in that: it comprises the steps,
The first step, the silica gel heat-conducting layer is spread upon the bottom of LED lamp pearl, this LED lamp pearl has positive electrode, negative electrode and bottom heating end, and this LED lamp pearl is stained with is combined in the copper-clad plate of copper base, this copper base copper-clad plate has LED and inserts face and connect thermal conductive surface, this LED lamp pearl is stained with on this LED access face that is combined in this copper base copper-clad plate, this moment, this silica gel heat-conducting layer is between this LED access face of this bottom of this LED lamp pearl heating end and this copper base copper-clad plate, this copper base copper-clad plate is become by heat conductivility good metal copper
Second step, this positive electrode and this negative electrode that will aforesaid this LED lamp pearl be welded on respectively in this copper base copper-clad plate, this moment, and this LED access face formation electrical connection of this positive electrode of this LED lamp pearl and this negative electrode and this copper base copper-clad plate,
The 3rd step, in the magnesium alloy heat-dissipating casing, smear to be provided with and connect the silica gel heat-conducting layer, this magnesium alloy heat-dissipating casing comprises cover body and some fin, this cover body upwards is concaved with the lamp chamber from its bottom surface, this lamp chamber has opening and heat radiation joint face, some these fin connections are arranged on this cover body, this connection silica gel heat-conducting layer is arranged on this heat radiation joint face, with as mentioned above second the step in this copper base copper-clad plate be fixedly installed in this lamp chamber of this magnesium alloy heat-dissipating casing, this moment, be provided with this between this connection thermal conductive surface of this copper base copper-clad plate and this heat radiation joint face in this lamp chamber and be connected the silica gel heat-conducting layer, at last, utilize connecting screw that this copper base copper-clad plate is fixedly connected in this magnesium alloy heat-dissipating casing, to finish whole step.
8. the method for the magnesium alloy heat radiating structure of the making high-powered LED lamp described in claim 7, it is characterized in that: this copper base copper-clad plate can be the magnesium alloy copper-clad plate.
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| CN2010100025532A CN101718424B (en) | 2010-01-09 | 2010-01-09 | Magnesium alloy heat radiating structure of large-power LED lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103511926A (en) * | 2013-09-25 | 2014-01-15 | 苏州东亚欣业节能照明有限公司 | LED spotlight |
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| CN1194826C (en) * | 2002-05-20 | 2005-03-30 | 沈阳工业大学 | Magnesium alloy radiator and mfg. method thereof |
| CN1290384C (en) * | 2003-05-26 | 2006-12-13 | 王立华 | Printed circuit boarsd with high-radiating metallized holes with Al or Mg or their alloy basement and production thereof |
| CN2735151Y (en) * | 2004-07-30 | 2005-10-19 | 品能光电技术(上海)有限公司 | Light emitting diode module spotlight |
| CN101082394A (en) * | 2006-06-01 | 2007-12-05 | 深圳市乔立实业发展有限公司 | Light-operated LED road lamp |
| CN101290100A (en) * | 2007-04-19 | 2008-10-22 | 宁波安迪光电科技有限公司 | LED illuminating apparatus outer housing |
| CN101534599B (en) * | 2008-03-14 | 2010-08-25 | 西安孚莱德光电科技有限公司 | LED radiating substrate and manufacturing method thereof |
| CN101319775B (en) * | 2008-07-18 | 2010-06-09 | 东莞东海龙环保科技有限公司 | High thermal conductivity flexible sealant of power type LED lamp |
| CN201326917Y (en) * | 2008-11-24 | 2009-10-14 | 孙坚 | LED fluorescent lamp |
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| CN103511926A (en) * | 2013-09-25 | 2014-01-15 | 苏州东亚欣业节能照明有限公司 | LED spotlight |
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