CN105882041B - Composite for LED radiator - Google Patents
Composite for LED radiator Download PDFInfo
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- CN105882041B CN105882041B CN201610263672.0A CN201610263672A CN105882041B CN 105882041 B CN105882041 B CN 105882041B CN 201610263672 A CN201610263672 A CN 201610263672A CN 105882041 B CN105882041 B CN 105882041B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/206—Insulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
Abstract
A kind of composite for LED radiator, including：First film layer, the second film layer, third membrane layer, the 4th film layer and the 5th film layer, the second film layer are attached in the first film layer, and third membrane layer is attached in the second film layer, and the 4th film layer is attached in third membrane layer, and the 5th film layer is attached in the 4th film layer.The above-mentioned composite for LED radiator sets the first film layer, the second film layer, third membrane layer, the 4th film layer and the 5th film layer by being sequentially overlapped, and can obtain that good insulating, the coefficient of expansion are low, thermal conductivity factor is big, the advantage of good heat dissipation effect and light weight.
Description
Technical field
The present invention relates to technical field of heat dissipation, more particularly to a kind of composite for LED radiator.
Background technology
The fast development of LED industry, has pulled the development of upstream materials industry significantly, also further promotes high end materials neck
The breakthrough in domain.Wherein, substantial amounts of heat sink material can be used in LED lamp, including the potted element of LED wafer, LED light are thoroughly
Mirror, light-scattering component, high efficiency and heat radiation element, light reflection and light diffusing board etc..
All the time, radiate it is bad can cause power supply damage, light decay accelerate, reduced lifetime the problems such as, be LED illumination all the time
The most important thing of systematic function lifting.Traditional three kinds are used for the material of LED radiator, including aluminium, plastics and ceramics, three
Respectively have quality, but can not still meet simultaneously the good insulating needed for LED radiator material, the coefficient of expansion is low, thermal conductivity factor is big,
The advantage of good heat dissipation effect, light weight and good mechanical property.
For example, Chinese patent 201310313412.6 discloses a kind of magnesium alloy LED bulb Radiator in Die Casting part and its system
Method is made, the specific open present invention provides a kind of magnesium alloy LED bulb Radiator in Die Casting part, die casting composition % by weight
For：Al1.7~2.5, Zn≤0.2, Mn >=0.2, Cu≤0.008, Fe≤0.004, Ni≤0.001, the other impurities of Si≤0.05
Sum 0.01, Mg surpluses.There is provided a kind of manufacture method of magnesium alloy LED bulb Radiator in Die Casting part simultaneously.The effect of the present invention
It is that LED bulb radiator is manufactured by using the magnesium alloy of this kind of composition so that LED illumination bulb has good thermal diffusivity
Can, weight substantially mitigates, and technique is simple, dimensional accuracy is high, is shown by thermal diffusivity result of the test, under same test conditions, should
Magnesium alloy junction temperature compared with AZ31 magnesium alloys have dropped 1~2 DEG C, extend 4~16% equivalent to LED life, luminous flux declines
Slow down 1%~2%.Reduce the manufacturing cost of LED light device and the use cost of user.However, above-mentioned patent is disclosed
Material still there is poor insulativity, be difficult safety and the defect of heavier mass.
And for example, Chinese patent 201110043870.3 discloses a kind of heat-conducting thermosetting molding composite material and its use
On the way, it is specific open the invention discloses a kind of heat-conducting thermosetting molding composite material and application thereof, its base stock and its again
Amount percentage composition is (1) thermoset substrate resin 15-65%；(2) conducting filler 20-80%, the thermal conductivity factor of the filler is big
In 1W/m. DEG C；(3) other additives, such as toughener, reinforcing agent, stabilizer etc..The invention also discloses foregoing heat-conducting type thermosetting
Property molded composites be used to prepare LED illumination radiating piece, its forming temperature can control to less than usual and carry out scolding tin operation
220 DEG C so that the packaging technology of LED and radiator can unite two into one with the moulding process of thermosets radiator, can
So that the real estate of LED or heat-conducting metal support to be directly connected with Heat Conduction Material, its mould and its accessory system have
Have can effectively heat insulation and controlling temperature and it is easy to clean the characteristics of, can effectively reduce the processing of LED and cost is made, improve LED radiator
Heat-sinking capability, so as to reduce the running temperature of LED component.However, still there is thermal conductivity factor in material disclosed in above-mentioned patent
The smaller and high defect of the coefficient of expansion.
And for example, Chinese patent 03126663.0 discloses a kind of aluminum alloy materials of modified 6063, and specific disclosure is originally
A kind of aluminum alloy materials of modified 6063 of disclosure of the invention, the material is that weight percentage is added with former 6063 aluminium alloy
For 0.11~0.2% mixed rare-earth elements La and Ce, the wherein addition of rare-earth elements La is 0.036~0.14%.Rare earth
Application result of the element in aluminium alloy shows that appropriate rare earth is added in aluminium alloy can improve machinery, physics and manufacturability
Can, show as purifying, strengthen and refining, made in semiconductor and air conditioner and condenser/evaporator device using material of the present invention
Radiator, there is good extrudability and electrical and thermal conductivity performance.However, still there is insulating properties in material disclosed in above-mentioned patent
Difference, was difficult safety, not ideal enough and heavier mass the defect of heat dispersion.
The content of the invention
Based on this, it is necessary to provide that a kind of good insulating, the coefficient of expansion are low, thermal conductivity factor is big, good heat dissipation effect and light weight
The composite for LED radiator.
A kind of composite for LED radiator, including：First film layer, the second film layer, third membrane layer, the 4th film layer
With the 5th film layer,
Second film layer is attached in first film layer, and the third membrane layer is attached in second film layer, institute
State the 4th film layer to be attached in the third membrane layer, the 5th film layer is attached in the 4th film layer；First film layer,
Second film layer, the third membrane layer, the thickness ratio of the 4th film layer and the 5th film layer are 1~1.5：8~12：5
~7：6~10：2~2.5；
First film layer includes each component of following mass parts：50 parts~60 parts of carborundum, 30 parts of alundum (Al2O3)~
50 parts, 0 part~15 parts of silica 1,10 parts~20 parts of binding agent, 15 parts~20 parts of kaolin, 1 part~1.5 parts of magnesia, letter
0.3 part~0.4 part of positive 1 part~1.5 parts of soil, 1 part~1.5 parts of light weight calcium and rare earth oxide；
Second film layer includes the component of following mass parts：80 parts~95 parts of graphene；
The third membrane layer includes each component of following mass parts：94 parts~96 parts of copper, 3 parts~4 parts of aluminium, 0.2 part of nickel~
0.3 part, 0.5 part~1 part of niobium, 0.2 part~0.3 part of manganese, 0.2 part~0.3 part of titanium, 0.2 part~0.3 part of chromium and vanadium 0.2 part~0.3
Part；
4th film layer includes each component of following mass parts：47 parts~50 parts of copper, 49 parts~52 parts of aluminium, 0.2 part of magnesium
0.1 part of~0.7 part, 0.2 part~0.7 part of iron, 0.2 part~0.5 part of manganese, 0.1 part~0.3 part of titanium, 0.05 part~0.1 part of chromium and vanadium
~0.3 part；
5th film layer includes each component of following mass parts：30 parts~35 parts of graphite, 25 parts~30 parts of carbon fiber gathers
45 parts~50 parts of acid amides, 15 parts~20 parts of water-soluble silicate, 4 parts~6 parts of hexagonal boron nitride, BMI 3 parts~4
Part, 1 part~1.5 parts of silane coupler, 0.5 part~1 part of antioxidant.
In one of the embodiments, first film layer includes each component of following mass parts：55 parts of carborundum, three oxygen
Change 40 parts of two aluminium, 3 parts of silica 1,15 parts of binding agent, 18 parts of kaolin, 1.5 parts of magnesia, 1.5 parts of Xinyang soil, light weight calcium
1.5 parts and 0.3 part of rare earth oxide.
In one of the embodiments, the third membrane layer includes each component of following mass parts：95 parts of copper, 3.5 parts of aluminium,
0.2 part~0.3 part of 0.3 part of nickel, 0.8 part of niobium, 0.2 part~0.3 part of manganese, 0.2 part~0.3 part of titanium, 0.2 part~0.3 part of chromium and vanadium.
In one of the embodiments, the 4th film layer includes each component of following mass parts：48 parts of copper, 51 parts of aluminium,
0.3 part of 0.3 part of magnesium, 0.3 part of iron, 0.4 part of manganese, 0.4 part of titanium, 0.08 part of chromium and vanadium.
In one of the embodiments, the 5th film layer includes each component of following mass parts：35 parts of graphite, carbon fiber
28 parts, 45 parts of polyamide, 18 parts of water-soluble silicate, 5 parts of hexagonal boron nitride, 3.5 parts of BMI, silane coupler
1.8 parts, 0.7 part of antioxidant.
The above-mentioned composite for LED radiator sets the first film layer, the second film layer, tertiary membrane by being sequentially overlapped
Layer, the 4th film layer and the 5th film layer, can obtain that good insulating, the coefficient of expansion are low, thermal conductivity factor is big, good heat dissipation effect and light weight
Advantage.
Brief description of the drawings
Fig. 1 is the structural representation of the composite for LED radiator of an embodiment of the present invention；
Fig. 2 is the partial structurtes enlarged diagram of the composite for LED radiator of another embodiment of the invention；
Fig. 3 is the partial structurtes enlarged diagram of the composite for LED radiator of another embodiment of the invention；
Fig. 4 is the structural representation of the composite for LED radiator of another embodiment of the invention；
Fig. 5 is the structural representation of the LED lamp of an embodiment of the present invention.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.Many details are elaborated in the following description to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case of running counter to intension of the present invention, therefore the present invention is not limited by following public specific embodiment.
For example, the composite for LED radiator of an embodiment of the present invention, including：First film layer, the second film
Layer, third membrane layer, the 4th film layer and the 5th film layer, second film layer are attached in first film layer, the third membrane layer
It is attached in second film layer, the 4th film layer is attached in the third membrane layer, the 5th film layer is attached at described
In 4th film layer；First film layer includes each component of following mass parts：40 parts~70 parts of carborundum, 13 parts of alundum (Al2O3)
~55 parts, 2 parts~15 parts of silica, 3 parts~25 parts of binding agent, 2 parts~20 parts of kaolin, 0.5 part~2 parts of magnesia, letter
0.2 part~0.5 part of positive 0.5 part~2 parts of soil, 0.5 part~2 parts of light weight calcium and rare earth oxide；Second film layer includes as follows
The component of mass parts：80 parts~95 parts of graphene；The third membrane layer includes each component of following mass parts：Copper 93 parts~97
Part, 2 parts~4.5 parts of aluminium, 0.1 part~0.3 part of nickel, 0.2 part~1.2 parts of niobium, 0.1 part~0.4 part of manganese, 0.1 part~0.3 part of titanium,
0.1 part~0.3 part of 0.1 part~0.3 part of chromium and vanadium；4th film layer includes each component of following mass parts：Copper 47 parts~50
Part, 49 parts~52 parts of aluminium, 0.2 part~0.7 part of magnesium, 0.2 part~0.7 part of iron, 0.2 part~0.5 part of manganese, 0.1 part~0.3 part of titanium,
0.1 part~0.3 part of 0.05 part~0.1 part of chromium and vanadium.5th film layer includes each component of following mass parts：20 parts of graphite~
40 parts, 20 parts~30 parts of carbon fiber, 40 parts~60 parts of polyamide, 10 parts~20 parts of water-soluble silicate, 1 part of hexagonal boron nitride~
8 parts, 2 parts~5 parts of BMI, 0.5 part~2 parts of silane coupler, 0.25 part~1 part of antioxidant.
Referring to Fig. 1, its structural representation for the composite 10 for LED radiator of an embodiment of the present invention
Figure.
Composite 10 for LED radiator includes：Be sequentially overlapped the first film layer 100 of setting, the second film layer 200,
Third membrane layer 300, the 4th film layer 400 and the 5th film layer 500, i.e. the first film layer 100, the second film layer 200, third membrane layer 300,
Four film layers 400 and the 5th film layer 500 are sequentially overlapped attaching, that is to say, that the second film layer 200 is attached in the first film layer 100, the
Three film layers 300 are attached in the second film layer 200, and the 4th film layer 400 is attached in third membrane layer 300, and the 5th film layer 500 is attached at
In 4th film layer 400.
It should be noted that first film layer is directly contacted with pyrotoxin, for example, first film layer connects with LED
Touch, i.e., LED is directly installed in first film layer, and for example, and first film layer is contacted with the substrate of mounted LED lamp, again
Such as, LED is located in the cavity that first film layer is surrounded, to ensure that the luminous heat produced of LED can be transferred directly to
First film layer, certainly, LED are not limited to above-mentioned situation with the position of first film layer and structural relation, and the present invention is real
Applying first film layer in example and the position of LED and structural relation can also be had using well known to those skilled in the art
The other embodiment of same effect, will not be repeated here.
For example, a kind of composite for LED radiator of present invention offer, the first film layer therein, it has insulation
Effect is good, and thermal conductivity factor is big and the low advantage of thermal coefficient of expansion, in this way, when the heat of LED is directly delivered to first film
During layer, first film layer can guide the heat of LED near zone aggregation quickly and in time, to ensure LED just
Often work.Secondly as first film layer and the distance between LED are nearest, its heat conduction load undertaken is maximum, when described
When the thermal coefficient of expansion of first film layer is low, it is possible to avoid producing gap between first film layer and second film layer, and
Avoid first film layer itself from producing gap, and then the thermal conductivity factor that is produced after the gap and gap filling air can be avoided
The problem of reduction.Finally, due to which the distance between first film layer and LED are recently, easily occur electric elements directly with
The problem of first film layer is contacted, when the insulation effect of first film layer is good, it is possible to avoid the first film layer from being powered, from
And the security performance of the composite for LED radiator is improved, safety standard is higher.
For example, the composite for LED radiator of an embodiment of the present invention, the first film layer therein, it includes
The each component of following mass parts：40 parts~70 parts of carborundum, 13 parts~55 parts of alundum (Al2O3), 2 parts~15 parts of silica glues
3 parts~25 parts of agent is tied, 2 parts~20 parts of kaolin, 0.5 part~2 parts of magnesia, Xinyang is native 0.5 part~2 parts, 0.5 part of light weight calcium~
2 parts and 0.2 part~0.5 part of rare earth oxide.
Above-mentioned first film layer mixes remaining original that can be used for preparing ceramics by the use of carborundum as primary raw material
Material, so that above-mentioned first film layer has been provided simultaneously with, thermal conductivity factor height, good insulation preformance, thermal coefficient of expansion be low and heat resistance
Preferable advantage, in addition, above-mentioned first film layer also has the advantages that to be readily produced manufacture and manufacturing cost is low.
It is preferred that, the composite for LED radiator of an embodiment of the present invention, the first film layer therein is included such as
The each component of lower mass parts：50 parts~60 parts of carborundum, 30 parts~50 parts of alundum (Al2O3), 0 part~15 parts of silica 1 glues
10 parts~20 parts of agent is tied, 15 parts~20 parts of kaolin, 1 part~1.5 parts of magnesia, Xinyang is native 1 part~1.5 parts, 1 part of light weight calcium~
1.5 parts and 0.3 part~0.4 part of rare earth oxide.
It is preferred that, the composite for LED radiator of an embodiment of the present invention, the first film layer therein is included such as
The each component of lower mass parts：55 parts of carborundum, 40 parts of alundum (Al2O3), 3 parts of silica 1,15 parts of binding agent, kaolin 18
Part, 1.5 parts of magnesia, Xinyang is native 1.5 parts, 0.3 part of 1.5 parts of light weight calcium and rare earth oxide.
For example, the present invention also provides a kind of preparation method of first film layer of any of the above-described embodiment, it includes
Following steps：By said ratio by carborundum, alundum (Al2O3), silica, binding agent, kaolin, magnesia, Xinyang is native,
Light weight calcium and rare earth oxide mixing；Above-mentioned first film layer is obtained after plasticizing, extrusion forming, cooling and the demoulding.
It should be noted that because above-mentioned second film layer is directly fitted with first film layer, then the first film layer meeting
The heat being absorbed to from LED is directly passed to second film layer, this requires second film layer to have high lead
The heat being absorbed to from first film layer, can be delivered to rapidly in second film layer, in addition, also requiring that institute by hot coefficient
The second film layer is stated while having preferable heat dispersion, and relatively low thermal coefficient of expansion.
For example, a kind of composite for LED radiator of present invention offer, the second film layer therein, it has heat conduction
Coefficient is high, the advantage of perfect heat-dissipating and good mechanical property, in this way, the heat that will be absorbed to from LED when first film layer
It is directly passed to second film layer, then the heat that first film layer is absorbed to can just be delivered to second film rapidly
, can also be by second film layer based on the excellent heat dispersion of second film layer on layer, and during heat conduction
Heat is lost in the air in the external world.Secondly as second film layer is also in the distance with LED relative close, its
The temperature of body also can be higher, still, based on the relatively low thermal coefficient of expansion of second film layer, it is possible to avoid second film layer
Gap is produced between the third membrane layer, it is ensured that the compactness that both fit.
For example, the composite for LED radiator of an embodiment of the present invention, the second film layer therein, it includes
The each component of following mass parts：80 parts~95 parts of graphene, 0.1 part~20 parts of CNT and carbon nano-fiber 0.1 part~20
Part.
Above-mentioned second film layer is primary raw material by using graphene so that its thermal conductivity factor is greatly improved,
Heat-conducting effect is preferable.In addition, again by adding CNT and carbon fiber, can form heat dissipation channel, heat dispersion is also preferable.
Herein it is emphasized that because above-mentioned second film layer employs the preferable material of this conductive effect of graphene,
Therefore, the present invention fits the conductive layer with first film layer, to isolate the circuit element inside LED lamp, so as to keep away
Exempt from that second film layer is directly powered, and then improve the security performance of the composite for LED radiator, safety mark
It is accurate higher.
It is preferred that, the second film layer includes each component of following mass parts：85 parts~90 parts of graphene, 5 parts of CNT~
15 parts and 5 parts~15 parts of carbon nano-fiber.
It is preferred that, the second film layer includes each component of following mass parts：90 parts of graphene, 10 parts of CNT and nano-sized carbon
10 parts of fiber.
It should be noted that two layers, i.e., described first film layer and described second before the heat process produced because LED is luminous
After film layer, understand the heat of some and be lost in the air in the external world.Further, since the cost of second film layer is higher, its
Main reason is that, the primary raw material of second film layer is prepares the graphene that cost is higher, therefore, based on the tertiary membrane
In the case that the heat transfer of layer and radiating burden are relatively small, the third membrane layer can use the most frequently used metal in current market to dissipate
Hot material, to reach the effect for reducing cost and obtaining preferable heat transfer property.
For example, a kind of composite for LED radiator of present invention offer, third membrane layer therein, it has heat conduction
Coefficient is high, perfect heat-dissipating, good mechanical property and lower-cost advantage, in this way, when the heat transfer of second film layer
During to the third membrane layer, then the heat that second film layer is absorbed to just can relatively rapidly be delivered to the third membrane layer
On, and during heat transfer, the heat of part can also be directly delivered in the air in the external world by the third membrane layer.
For example, the composite for LED radiator of an embodiment of the present invention, third membrane layer therein, it includes
The each component of following mass parts：93 parts~97 parts of copper, 2 parts~4.5 parts of aluminium, 0.1 part~0.3 part of nickel, 0.2 part~1.2 parts of niobium, manganese
0.1 part~0.3 part of 0.1 part~0.4 part, 0.1 part~0.3 part of titanium, 0.1 part~0.3 part of chromium and vanadium.
Above-mentioned third membrane layer, which contains copper (Cu), can make the heat conductivility of third membrane layer be maintained at a high level of comparison.
When the mass parts of copper are 93 parts~97 parts, the coefficient of heat conduction of the third membrane layer can reach more than 380W/mK, can be compared with
Rapidly the heat being transmitted in second film layer is passed, and then be evenly dispersed in the overall knot of the third membrane layer
On structure, to prevent heat from being accumulated on the contact position between second film layer and the third membrane layer, hot-spot is caused
The generation of phenomenon.Moreover, the density of the third membrane layer but only has 8.0kg/m3~8.1kg/m3, the far smaller than density of fine copper,
It so can effectively mitigate the weight of the third membrane layer, manufacture is more conducively installed, while also greatly reducing cost.This
Outside, the third membrane layer contain mass parts be 2 parts~4.5 parts aluminium, 0.1 part~0.3 part of nickel, 0.2 part~1.2 parts of niobium,
0.1 part~0.4 part of manganese, 0.1 part~0.3 part of titanium, 0.1 part~0.3 part of chromium and 0.1 part~0.3 part of vanadium.Relatively
In fine copper, ductility, toughness, intensity and the resistance to elevated temperatures of third membrane layer are improved significantly, and not easy-sintering.
In order that the third membrane layer has preferably performance, for example, the third membrane layer contain mass parts for 0.1 part~
0.3 part of nickel (Ni), can improve the resistance to elevated temperatures of third membrane layer.And for example, third membrane layer contain mass parts for 0.1 part~
0.3 part of vanadium (V) can suppress third membrane layer crystal grain and grow up, and more uniform tiny grain structure be obtained, to reduce the described 3rd
The fragility of film layer, improves the overall mechanical property of the third membrane layer, to improve toughness and intensity.And for example, the third membrane layer
Containing the titanium (Ti) that mass parts are 0.1 part~0.3 part, the crystal grain miniaturization of the third membrane layer can be caused, it is described to improve
The ductility of third membrane layer；And for example, it is 1 part~2.5 parts of silicon (Si) that the third membrane layer, which also includes mass parts, when described the
When three film layers contain appropriate silicon, described can be effectively lifted on the premise of the third membrane layer heat conductivility is not influenceed
The hardness and abrasion resistance of three film layers.But, through multiple theory analysis and experiment evidence find, when silicon in third membrane layer quality too
It is many, such as when mass percent is more than more than 15 parts, the appearance of third membrane layer can be made to be distributed black particles, and ductility drops
It is low, it is unfavorable for the production shaping of the third membrane layer.
It is preferred that, the third membrane layer includes each component of following mass parts：94 parts~96 parts of copper, 3 parts~4 parts of aluminium, nickel
0.2 part~0.3 part, 0.5 part~1 part of niobium, 0.2 part~0.3 part of manganese, 0.2 part~0.3 part of titanium, 0.2 part~0.3 part of chromium and vanadium 0.2
Part~0.3 part.
It is preferred that, the third membrane layer includes each component of following mass parts：95 parts of copper, 3.5 parts of aluminium, 0.3 part of nickel, niobium
0.2 part~0.3 part of 0.8 part, 0.2 part~0.3 part of manganese, 0.2 part~0.3 part of titanium, 0.2 part~0.3 part of chromium and vanadium.
It should be noted that when the heat that LED is produced passes through three first layers, i.e., respectively described first film layer, described the
After two film layers and the third membrane layer, have relatively large a part of heat and be dissipated in transmission in air dielectric, in addition, by
It is copper in the primary raw material of the third membrane layer, therefore its heavier mass, bears relatively small based on the 4th convection
In the case of, the 4th film layer can use radiating effect preferably, lighter in weight, lower-cost material, to reach reduction
Cost and weight, and obtain the effect of preferable heat dispersion.
For example, a kind of composite for LED radiator of present invention offer, the 4th film layer therein, it has radiating
Effect is preferable, lighter in weight and lower-cost advantage, in this way, when the 4th film layer described in the heat transfer of the third membrane layer
When, then the heat of the overwhelming majority can be dissipated in air dielectric by the 4th film layer, to coordinate first film layer, institute
State the effect that the second film layer and the third membrane layer complete gradient heat transfer, so, different heat regions can be directed to, i.e., with
The distance of LED distance is measured, and is realized the gradient transmission of heat and lost effect, is solved traditional heat sinks insulated with material
Property it is poor, cost is high, quality weight, the problem of heat conduction and poor radiating effect.
For example, composite of an embodiment of the present invention for LED radiator, the 4th film layer therein, it is included such as
The each component of lower mass parts：47 parts~50 parts of copper, 49 parts~52 parts of aluminium, 0.2 part~0.7 part of magnesium, 0.2 part~0.7 part of iron, manganese
0.1 part~0.3 part of 0.2 part~0.5 part, 0.1 part~0.3 part of titanium, 0.05 part~0.1 part of chromium and vanadium.
Above-mentioned 4th film layer contains the copper and 49 parts~52 parts of aluminium that mass parts are 47 parts~50 parts, can cause described
The coefficient of heat conduction of 4th film layer is maintained at 300W/mK~350W/mK, to ensure that the 4th film layer can be by by the described 3rd
The heat that film layer is passed over rapidly is dissipated in air dielectric, and then prevents heat from being accumulated in the 4th film layer, is made
Produced into hot-spot phenomenon.Relative to prior art, merely using price costly and the larger copper of quality, the above-mentioned 4th
Film layer both have good heat dissipation effect, rapidly heat can be lost in air, again have lighter weight, be easily installed casting,
The less expensive advantage of price.Meanwhile, relative to prior art, merely using the poor aluminium alloy of radiating effect, the above-mentioned 4th
Film layer has more preferably heat transfer property.In addition, the 4th film layer contain mass parts be 0.2 part~0.7 part magnesium, 0.2 part~0.7 part
Iron, 0.2 part~0.5 part of manganese, 0.1 part~0.3 part of titanium, 0.05 part~0.1 part of chromium and 0.1 part~0.3 vanadium, change
It has been apt to yield strength, tensile strength and the resistance to elevated temperatures of the 4th film layer.For example, being sent out through many experiments evidence and theory analysis
Existing, the 4th film layer contains the magnesium that mass parts are 0.2 part~0.7 part, and the 4th film layer yield strength can be assigned to a certain extent
And tensile strength.
It is preferred that, the 4th film layer includes each component of following mass parts：48 parts~49 parts of copper, 50 parts~52 parts of aluminium,
0.2 part~0.5 part of magnesium, 0.2 part~0.5 part of iron, 0.3 part~0.5 part of manganese, 0.2 part~0.3 part of titanium, 0.05 part~0.08 part of chromium
With 0.2 part~0.3 part of vanadium.
It is preferred that, the 4th film layer includes each component of following mass parts：48 parts of copper, 51 parts of aluminium, 0.3 part of magnesium, iron 0.3
Part, 0.4 part of manganese, 0.4 part of titanium, 0.08 part of chromium and 0.3 part of vanadium.
In order to further mitigate the weight of the 4th film layer, and preferable radiating effect is obtained, for example, the present invention is also carried
For the 4th film layer of auxiliary, the film layer of auxiliary the 4th is arranged at the 4th film layer away from the third membrane layer one side.
For example, the film layer of auxiliary the 4th of an embodiment of the present invention, it includes each component of following mass parts：88 parts of aluminium~
93 parts, 5.5 parts~10.5 parts of silicon, 0.3 part~0.7 part of magnesium, 0.05 part~0.3 part of copper, 0.2 part~0.8 part of iron, 0.2 part of manganese~
0.05 part~0.3 part of 0.5 part, 0.05 part~0.3 part of titanium, 0.05 part~0.1 part of chromium and vanadium.
The above-mentioned film layer of auxiliary the 4th contains the aluminium that mass parts are 88 parts~93 parts, can cause the heat biography for aiding in the 4th film layer
Lead coefficient and be maintained at 200W/mK~220W/mK, radiating effect preferably, can meet and after-heat is delivered in air dielectric
The need for, meanwhile, its quality is lighter, more conducively transports.In addition, the 4th film layer of auxiliary contains mass parts for 5.5 parts~10.5 parts
Silicon, 0.3 part~0.7 part of magnesium, 0.05 part~0.3 part of copper, 0.2 part~0.8 part of iron, 0.2 part~0.5 part of manganese,
0.05 part~0.3 part of titanium, 0.05 part~0.1 part of chromium and 0.05 part~0.3 part of vanadium, can significantly improve auxiliary
The heat dispersion of four film layers.For example, the 4th film layer of auxiliary contains the silicon and 0.05 part~0.3 that mass parts are 5.5 parts~10.5 parts
The copper of part, it can be ensured that the 4th film layer of auxiliary has the advantages that good mechanical properties and lighter weight, at the same time it can also further
Improve the heat dispersion of the 4th film layer of auxiliary.And for example, the 4th film layer of auxiliary also includes the lead that mass parts are 0.3 part~0.6 part
(Pb), so, can, when aiding in the 4th film layer lead that contains 0.3 part~0.6 part can to improve the tensile strength of the 4th film layer of auxiliary
With prevent when will the 4th film layer of auxiliary be cast punching press slabbing or membranaceous structure when, pullled stress by excessive punching press and
Fracture.And for example, the 4th film layer of auxiliary also includes the niobium (Nb) that mass parts are 0.02 part~0.04 part, when the mass parts of niobium are more than
At 0.02 part, the antioxygenic property of the 4th film layer of auxiliary can be greatly enhanced, however, when the mass parts of niobium are more than 0.04 part
When, it can cause to aid in the magnetic of the 4th film layer to sharply increase, influence can be produced on the miscellaneous part in LED lamp.And for example, aid in
4th film layer also includes the germanium (Ge) that mass parts are 0.02 part~0.03 part, can be to auxiliary when the mass parts of germanium are more than 0.02 part
The raising of the heat dispersion of the 4th film layer is helped to play unexpected effect, however, when the quality accounting of germanium is excessive, such as germanium
When mass parts are more than 2 parts, the brittleness of the film layer of auxiliary the 4th can be made again to be increased.
It should be noted that because of four layers, i.e., described first film layer, described second before the heat process of the luminous generation of LED
After film layer, the third membrane layer and the 4th film layer, the heat of a greatly part has been lost in the air in the external world.Therefore,
In the case that radiating burden based on the 5th film layer is relatively small, and self-temperature is relatively low, thermal coefficient of expansion is larger to be produced
Influence it is minimum in the case of, the third membrane layer can use the most frequently used plastic material in current market, be reduced into reaching
Sheet and weight, and obtain preferable surface protection performance.
For example, a kind of composite for LED radiator of present invention offer, the 5th film layer therein, it has surface
Protective value is good, the relatively low advantage of lighter in weight, cost, in this way, when the 5th film layer is located at the answering for LED radiator
During the outermost layer of condensation material, there can be a preferable heat dispersion, preferable surface protection performance, lighter weight and relatively low
Cost.
For example, the 5th film layer of an embodiment of the present invention, it includes each component of following mass parts：5th film layer
Include each component of following mass parts：20 parts~40 parts of graphite, 20 parts~30 parts of carbon fiber, 40 parts~60 parts of polyamide is water-soluble
Property 10 parts~20 parts of silicate, 1 part~8 parts of hexagonal boron nitride, 2 parts~5 parts of BMI, silane coupler 0.5 part~2
Part, 0.25 part~1 part of antioxidant.
When above-mentioned water-soluble silicate is mixed with graphite and carbon fiber, it can be total under the high temperature conditions with the generation of polyamide
Poly- reaction, forms heat dissipation channel, so as to improve heat dispersion, and more fluffy empty structure, and quality is lighter.Further, since with the addition of
Carbon fiber, its surface protection performance and mechanical performance are more preferable, for example, it is more anti-oxidant, more resistant to soda acid, more resistant to corrosion.
It is preferred that, the 5th film layer includes each component of following mass parts：30 parts~35 parts of graphite, 25 parts of carbon fiber~
30 parts, 45 parts~50 parts of polyamide, 15 parts~20 parts of water-soluble silicate, 4 parts~6 parts of hexagonal boron nitride, BMI 3
Part~4 parts, 1 part~1.5 parts of silane coupler, 0.5 part~1 part of antioxidant.
It is preferred that, the 5th film layer includes each component of following mass parts：35 parts of graphite, 28 parts of carbon fiber, polyamide
45 parts, 18 parts of water-soluble silicate, 5 parts of hexagonal boron nitride, 3.5 parts of BMI, 1.8 parts of silane coupler, antioxidant
0.7 part.
In order to preferably cause first film layer, second film layer, the third membrane layer, the 4th film layer and institute
The heat conduction and sinking path for stating the 5th film layer more optimize, therefore, considering cost, weight, heat conduction and radiating effect, with
And in the case of surface protection performance, second film layer of an embodiment of the present invention, the third membrane layer, the 4th film
Layer and the 5th thicknesses of layers ratio are 1~1.5：8~12：5~7：6~10：2~2.5, in this way, described first can be caused
Film layer, second film layer, the third membrane layer, the 4th film layer and the heat conduction of the 5th film layer and sinking path are more
Plus optimization.
In order that obtaining each Rotating fields of the composite for LED radiator, i.e., described first film layer, described second
Film layer, the third membrane layer, the 4th film layer and the 5th film layer are preferably fixed together, to improve structural stability
Can, for example, as shown in Fig. 2 first film layer, second film layer, the third membrane layer, the 4th film layer and described the
Inserted tooth 110 and caulking groove 120 are provided between the adjacent interfaces two-by-two of five film layers, when adjacent two layers structure is fitted, inserted tooth 110
It is embedded in caulking groove 120, can so causes each Rotating fields of the composite for LED radiator, i.e., described first
Film layer, second film layer, the third membrane layer, the 4th film layer and the 5th film layer are preferably fixed together, with
Improve structural stability can.And for example, as shown in figure 3, first film layer, second film layer, the third membrane layer, described
Buckle 210 and neck 220 are provided between the adjacent interfaces two-by-two of four film layers and the 5th film layer, when adjacent two layers structure
During laminating, buckle 210 is embedded in neck 220, can so cause each layer knot of the composite for LED radiator
Structure, i.e., described first film layer, second film layer, the third membrane layer, the 4th film layer and the 5th film layer are preferably
It is fixed together, further to improve structural stability can.
In order to further such that first film layer, second film layer, the third membrane layer, the 4th film layer and institute
State the 5th film layer to be fixed together, further to improve structural stability, and reduce to the composite wood for LED radiator
Expect heat conduction and the influence of heat transfer property.
For example, referring to Fig. 4, setting first to fill adhesive layer 600, second between the first film layer 100 and the second film layer 200
Set second to fill between film layer 200 and third membrane layer 300 to set between adhesive layer 700, the film layer 400 of third membrane layer 300 and the 4th
The 3rd filling adhesive layer 800 is equipped with, sets the 4th to fill adhesive layer 900 between the 4th film layer 400 and the 5th film layer 500.Can be with
Understand, the first film layer 100, the second film layer 200, the second film layer 200, third membrane layer 300, the 4th film layer 400 and the 5th film layer 500
Adjacent interfaces two-by-two between exist that structure is small and a fairly large number of gap, its reason is essentially consisted in, due to above-mentioned each
The binding face defective tightness of layer material, and fill the filling of adhesive layer the 700, the 3rd by setting first to fill adhesive layer 600, second
The filling adhesive layer 900 of adhesive layer 800 and the 4th can preferably fill these gaps, while also functioning to the effect of bonding.
For example, the present invention provides the first filling adhesive layer of an embodiment, it includes each group of following mass parts
Point：300 parts~1000 parts of nano alumina particles, 5 parts~30 parts of methyl vinyl silicone rubber, vinyl silicone oil 10 parts~50
Part, 1 part~20 parts of 10 parts~100 parts of dimethicone and MQ silicones.
It is preferred that, the first filling adhesive layer includes each component of following mass parts：800 parts of nano alumina particles~
1000 parts, 20 parts~30 parts of methyl vinyl silicone rubber, 40 parts~50 parts of vinyl silicone oil, 80 parts~100 parts of dimethicone
With 15 parts~20 parts of MQ silicones.
It is preferred that, the first filling adhesive layer includes each component of following mass parts：900 parts of nano alumina particles,
20 parts of 25 parts of methyl vinyl silicone rubber, 45 parts of vinyl silicone oil, 85 parts of dimethicone and MQ silicones.
For example, the present invention provides the second filling adhesive layer of an embodiment, it includes each group of following mass parts
Point：200 parts~800 parts of nano alumina particles, 10 parts~40 parts of methyl vinyl silicone rubber, vinyl silicone oil 10 parts~50
Part, 1 part~20 parts of 10 parts~100 parts of dimethicone and MQ silicones；
It is preferred that, the second filling adhesive layer includes each component of following mass parts：500 parts of nano alumina particles~
700 parts, 20 parts~30 parts of methyl vinyl silicone rubber, 30 parts~40 parts of vinyl silicone oil, 50 parts~80 parts of dimethicone and
10 parts~15 parts of MQ silicones.
It is preferred that, the second filling adhesive layer includes each component of following mass parts：600 parts of nano alumina particles,
15 parts of 15 parts of methyl vinyl silicone rubber, 35 parts of vinyl silicone oil, 65 parts of dimethicone and MQ silicones.
For example, the present invention provides the 3rd filling adhesive layer of an embodiment, it includes each group of following mass parts
Point：200 parts~700 parts of nano alumina particles, 10 parts~40 parts of methyl vinyl silicone rubber, vinyl silicone oil 10 parts~50
Part, 1 part~20 parts of 10 parts~100 parts of dimethicone and MQ silicones.
It is preferred that, the 3rd filling adhesive layer includes each component of following mass parts：200 parts of nano alumina particles~
600 parts, 20 parts~40 parts of methyl vinyl silicone rubber, 20 parts~50 parts of vinyl silicone oil, 30 parts~100 parts of dimethicone and
5 parts~10 parts of MQ silicones.
It is preferred that, the 3rd filling adhesive layer includes each component of following mass parts：500 parts of nano alumina particles,
8 parts of 25 parts of methyl vinyl silicone rubber, 25 parts of vinyl silicone oil, 30 parts of dimethicone and MQ silicones.
For example, the present invention provides the 4th filling adhesive layer of an embodiment, it includes each group of following mass parts
Point：150 parts~700 parts of nano alumina particles, 15 parts~45 parts of methyl vinyl silicone rubber, vinyl silicone oil 10 parts~50
Part, 1 part~20 parts of 10 parts~100 parts of dimethicone and MQ silicones.
It is preferred that, the 4th filling adhesive layer includes each component of following mass parts：150 parts of nano alumina particles~
450 parts, 15 parts~25 parts of methyl vinyl silicone rubber, 10 parts~25 parts of vinyl silicone oil, 80 parts~100 parts of dimethicone and
1 part~10 parts of MQ silicones.
It is preferred that, the 4th filling adhesive layer includes each component of following mass parts：250 parts of nano alumina particles,
5 parts of 18 parts of methyl vinyl silicone rubber, 20 parts of vinyl silicone oil, 95 parts of dimethicone and MQ silicones.
Above-mentioned first filling adhesive layer 600, the second filling filling filling of adhesive layer 800 and the 4th of adhesive layer the 700, the 3rd is viscous
Layer 900 is closed using organic siliconresin as matrix material, and adds the nano alumina particles with preferable heat-conducting effect.By
Organic silicon resin-based internal addition conduction powder nano aluminium oxide, stronger so as to prepare bonding force, thermal conductivity factor height is filled out
Jointing material is filled, and then can preferably cause first film layer, second film layer, the third membrane layer, the described 4th
Film layer and the 5th film layer are fixed together, further to improve structural stability.
Require emphasis when, the first filling filling filling of adhesive layer the 700, the 3rd of adhesive layer 600, second adhesive layer 800 and
The contents of nano alumina particles is successively decreased successively in 4th filling adhesive layer 900, be because heat load be also from the first film layer,
Second film layer, third membrane layer, the 4th film layer to the 5th film layer are successively decreased successively, so, can preferably get gradient heat conduction
With the effect of radiating.
First film layer, second film layer, the third membrane layer, the 4th film layer and institute are held in order to preferably glue
The 5th film layer is stated, while avoiding increasing excessive thickness, and is reduced to heat conduction and the influence of heat dispersion, for example, described first
Fill the thickness ratio of adhesive layer, the second filling adhesive layer, the 3rd filling adhesive layer and the 4th filling adhesive layer for 1~
1.5：2~2.5：3~3.5：4~4.5, and for example, the first filling adhesive layer and the thickness ratio of first film layer are 1：50
~80.
The above-mentioned composite 10 for LED radiator by be sequentially overlapped set the first film layer 100, the second film layer 200,
Third membrane layer 300, the 4th film layer 400 and the 5th film layer 500, can obtain that good insulating, the coefficient of expansion are low, thermal conductivity factor is big,
The advantage of good heat dissipation effect and light weight.
One example is that the present invention also provides a kind of LED lamp, and it, which includes the described of any embodiment, is used for LED
The composite of radiator.
For example, referring to Fig. 5, LED lamp 20 includes the composite 10 and LED 30 for LED radiator, LED
30 are arranged in the first film layer 100, and the composite 10 for LED radiator is set to columnar structured.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (3)
1. a kind of composite for LED radiator, it is characterised in that including：First film layer, the second film layer, third membrane layer,
4th film layer and the 5th film layer,
Second film layer is attached in first film layer, and the third membrane layer is attached in second film layer, and described
Four film layers are attached in the third membrane layer, and the 5th film layer is attached in the 4th film layer；It is first film layer, described
Second film layer, the third membrane layer, the thickness ratio of the 4th film layer and the 5th film layer are 1~1.5：8~12：5~7：6
~10：2~2.5；
First film layer includes each component of following mass parts：50 parts~60 parts of carborundum, 30 parts~50 parts of alundum (Al2O3),
0 part~15 parts of silica 1,10 parts~20 parts of binding agent, 15 parts~20 parts of kaolin, 1 part~1.5 parts of magnesia, Xinyang soil 1
0.3 part~0.4 part of part~1.5 parts, 1 part~1.5 parts of light weight calcium and rare earth oxide；
Second film layer includes the component of following mass parts：80 parts~95 parts of graphene；
The third membrane layer includes each component of following mass parts：94 parts~96 parts of copper, 3 parts~4 parts of aluminium, nickel 0.2 part~0.3
Part, 0.5 part~1 part of niobium, 0.2 part~0.3 part of manganese, 0.2 part~0.3 part of titanium, 0.2 part~0.3 part of chromium and 0.2 part~0.3 part of vanadium；
4th film layer includes each component of following mass parts：47 parts~50 parts of copper, 49 parts~52 parts of aluminium, magnesium 0.2 part~0.7
Part, 0.2 part~0.7 part of iron, 0.2 part~0.5 part of manganese, 0.1 part~0.3 part of titanium, 0.05 part~0.1 part of chromium and vanadium 0.1 part~0.3
Part；
5th film layer includes each component of following mass parts：30 parts~35 parts of graphite, 25 parts of carbon fiber~30 parts, polyamide
45 parts~50 parts, 15 parts~20 parts of water-soluble silicate, 4 parts~6 parts of hexagonal boron nitride, 3 parts of BMI~4 parts, silicon
1 part~1.5 parts of alkane coupling agent, 0.5 part~1 part of antioxidant.
2. the composite according to claim 1 for LED radiator, it is characterised in that first film layer includes
The each component of following mass parts：55 parts of carborundum, 40 parts of alundum (Al2O3), 3 parts of silica 1,15 parts of binding agent, kaolin 18
Part, 1.5 parts of magnesia, Xinyang is native 1.5 parts, 0.3 part of 1.5 parts of light weight calcium and rare earth oxide.
3. the composite according to claim 1 for LED radiator, it is characterised in that the third membrane layer includes
The each component of following mass parts：95 parts of copper, 3.5 parts of aluminium, 0.3 part of nickel, 0.8 part of niobium, 0.2 part~0.3 part of manganese, titanium 0.2 part~0.3
0.2 part~0.3 part of part, 0.2 part~0.3 part of chromium and vanadium.
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| CN201610263672.0A CN105882041B (en) | 2015-03-27 | 2015-03-27 | Composite for LED radiator |
| CN201510142312.0A CN104723620B (en) | 2015-03-27 | 2015-03-27 | For the matrix material of LED radiator |
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| CN101060974A (en) * | 2004-09-17 | 2007-10-24 | 先进能源科技公司 | Sandwiched finstock |
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| CN102555340A (en) * | 2010-12-28 | 2012-07-11 | 常州碳元科技发展有限公司 | High heat dissipation membrane composite structure and manufacturing method thereof |
| CN103547441A (en) * | 2011-03-16 | 2014-01-29 | 莫门蒂夫性能材料股份有限公司 | High thermal conductivity/low coefficient of thermal expansion composites |
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| JPS57185170A (en) * | 1981-05-09 | 1982-11-15 | Toshiba Corp | Heat dissipating base plate |
| US7282265B2 (en) * | 2003-05-16 | 2007-10-16 | Hitachi Metals, Ltd. | Composite material having high thermal conductivity and low thermal expansion coefficient, and heat-dissipating substrate, and their production methods |
| TWI339088B (en) * | 2007-05-23 | 2011-03-11 | Polytronics Technology Corp | Heat dissipation substrate and heat dissipation material thereof |
| CN103361528B (en) * | 2013-07-24 | 2015-02-04 | 天津东义镁制品股份有限公司 | Magnesium alloy radiator die casting of LED lamp bulb and manufacturing method thereof |
| CN203590668U (en) * | 2013-11-26 | 2014-05-07 | 昆山汉品电子有限公司 | Composite cooling film |
| CN104089262B (en) * | 2014-07-21 | 2017-01-25 | 东莞市闻誉实业有限公司 | Heat radiator |
| CN104315369A (en) * | 2014-09-15 | 2015-01-28 | 宁波爱科电气实业有限公司 | LED lamp |
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|---|---|---|---|---|
| CN101060974A (en) * | 2004-09-17 | 2007-10-24 | 先进能源科技公司 | Sandwiched finstock |
| JP2011189700A (en) * | 2010-03-16 | 2011-09-29 | Sekisui Chem Co Ltd | Combined sheet |
| CN102555340A (en) * | 2010-12-28 | 2012-07-11 | 常州碳元科技发展有限公司 | High heat dissipation membrane composite structure and manufacturing method thereof |
| CN103547441A (en) * | 2011-03-16 | 2014-01-29 | 莫门蒂夫性能材料股份有限公司 | High thermal conductivity/low coefficient of thermal expansion composites |
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| CN104723620A (en) | 2015-06-24 |
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