CN104763957B - Aeration type LED street lamp - Google Patents

Aeration type LED street lamp Download PDF

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Publication number
CN104763957B
CN104763957B CN201510206127.3A CN201510206127A CN104763957B CN 104763957 B CN104763957 B CN 104763957B CN 201510206127 A CN201510206127 A CN 201510206127A CN 104763957 B CN104763957 B CN 104763957B
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CN
China
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described
heat sink
parts
film layer
part
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CN201510206127.3A
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Chinese (zh)
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CN104763957A (en
Inventor
叶伟炳
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东莞市闻誉实业有限公司
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Publication of CN104763957A publication Critical patent/CN104763957A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/08Lighting devices intended for fixed installation with a standard
    • F21S8/085Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/088Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device mounted on top of the standard, e.g. for pedestrian zones
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/04Optical design

Abstract

A kind of aeration type LED street lamp, the first substrate that the second heat sink being connected with base including the first heat sink that base is connected with base is connected with the first heat sink and the second substrate being connected with the second heat sink.It is provided with heat dissipation channel, base is provided with the first heat sink in heat dissipation channel side, base is provided with the second heat sink in heat dissipation channel opposite side in base.First substrate located at the first heat sink away from the second heat sink one side, second substrate located at the second heat sink away from the first heat sink one side.First heat sink towards the second heat sink and the second heat sink towards the first heat sink while be equipped with multiple radiating burrs, radiating burr is in cone.Above-mentioned aeration type LED street lamp, the centre of base offers heat dissipation channel, is conducive to the circulation of air, can improve the air permeability around radiating burr, thus improving the radiating efficiency of aeration type LED street lamp.

Description

Aeration type LED street lamp

Technical field

The present invention relates to a kind of lighting, more particularly to a kind of aeration type LED street lamp.

Background technology

LED street lamp has the characteristics that energy-conservation, life-span length, it is to avoid often need the trouble more changing the bulb, by increasingly The favor of many users.But, the heat dissipation problem of LED street lamp and safety problem are also Important Problems.

Radiator is typically arranged on the inside the shell of closing even without setting because considering safety issue by traditional LED street lamp Radiator.So cause the air permeability relative deficiency of LED street lamp, the radiating efficiency of impact LED street lamp, thus having influence on its use Life-span.

Content of the invention

Based on this it is necessary to provide a kind of high and safe good aeration type LED street lamp of radiating efficiency.

This aeration type LED street lamp includes:Lamp holder and the lamp stand being connected with lamp holder.

Lamp holder includes the second heat sink and the first radiating that the first heat sink that base is connected is connected with base with base First substrate and the second substrate being connected with the second heat sink that plate connects.

It is provided with heat dissipation channel, base is provided with the first heat sink in heat dissipation channel side, base is another in heat dissipation channel in base Side is provided with the second heat sink.Base is provided with first opening corresponding with the first heat sink, and base is provided with and the second heat sink pair The second opening answered.It is provided with the first reflective surface, between the second heat sink and the second opening between first heat sink and the first opening It is provided with the second reflective surface.

First substrate located at the first heat sink away from the second heat sink one side, second substrate located at the second heat sink away from The one side of the first heat sink.The one side of first heat sink direction the second heat sink and the second heat sink are towards the first heat sink Simultaneously it is equipped with multiple radiating burrs.

In one of which embodiment, radiating burr is in cone.

In one of which embodiment, the first reflective surface and the second reflective surface are all in circular arc.

In one of which embodiment, base is all square with heat dissipation channel.Base is towards the first reflective surface on one side It is provided with the first wind guide channel, base is being provided with the second wind guide channel towards the second reflective surface.First heat sink is provided with the 3rd wind-guiding Road, the second heat sink is provided with the 4th wind guide channel.First wind guide channel is connected with the 3rd band air channel, the second wind guide channel and the 4th wind guide channel Connection.First heat sink is provided with the first air outlet away from first wind guide channel one end, and the first air outlet is connected with the 3rd wind guide channel.The Two heat sinks are provided with the second air outlet away from second wind guide channel one end, and the second air outlet is connected with the 4th wind guide channel.First air-out Mouth is all connected with heat dissipation channel with the second air outlet.

In one of which embodiment, the first air outlet tilts to away from the first opening direction, and the second air outlet is to remote Tilt from the second opening direction.

In one of which embodiment, radiating burr is provided with multiple branches.

In one of which embodiment, each branch is all in cone.

In one of which embodiment, multiple branches circumferentially arrange, the axis of each branch all with radiating burr Diameter parallel.

In one of which embodiment, base is equipped with multiple catch at the first wind guide channel and the second wind guide channel.

In one of which embodiment, the first reflective surface and the second reflective surface are all in straight panel shape.

Above-mentioned aeration type LED street lamp, the heat of first substrate can be transferred to the first heat sink, and the heat of second substrate can pass Defeated in the second heat sink, the first heat sink and the second heat sink can transfer heat in radiating burr and be shed, many Individual radiating burr can provide bigger area of dissipation, is conducive to improving the radiating efficiency of aeration type LED street lamp.The centre of base is opened Being provided with heat dissipation channel, be conducive to the circulation of air, the air permeability around radiating burr being improved, thus improving aeration type LED road The radiating efficiency of lamp.

First wind guide channel and being communicated with of the 3rd wind guide channel flow through heat dissipation channel beneficial to the more air of guiding, the second wind guide channel It is also beneficial to guide more air to flow through heat dissipation channel with connecting of the 4th wind guide channel, thus accelerating the burr surrounding air stream that radiates Logical speed, to improve the radiating efficiency of aeration type LED street lamp.Radiating burr is provided with multiple branches and is conducive to provide bigger radiating Area.

Brief description

Fig. 1 is the structural representation of aeration type LED street lamp of the present invention;

Fig. 2 is the top view of the aeration type LED street lamp shown in Fig. 1;

Fig. 3 is the sectional view of the aeration type LED street lamp shown in Fig. 2;

In accompanying drawing, the implication of each label is:

10- aeration type LED street lamp;

110- lamp holder;

120- lamp stand;

130- base, 131- first opening, 132- second opening, 133- first reflective surface, 134- second reflective surface, 135- First wind guide channel, 136- second wind guide channel, 137- catch, 138- heat dissipation channel;

140- first heat sink, 141- the 3rd wind guide channel, 142- first air outlet;

150- second heat sink, 151- the 4th wind guide channel, 152- second air outlet;

160- radiating burr;

170- first substrate;

180- second substrate.

Specific embodiment

With reference to shown in Fig. 1-Fig. 3, wherein Fig. 1 is the structural representation of aeration type LED street lamp 10 of the present invention;Fig. 2 is Fig. 1 institute The top view of the aeration type LED street lamp 10 shown;Fig. 3 is the sectional view of the aeration type LED street lamp 10 shown in Fig. 2.

This aeration type LED street lamp 10 includes:Lamp holder 110 and the lamp stand 120 being connected with lamp holder 110, lamp holder 110 and lamp stand 120 are detachably connected.

Lamp holder 110 is square, and lamp holder 110 includes the first heat sink 140 and the base that base 130 is connected with base 130 The second heat sink first substrates 170 being connected with the first heat sink 140 of 130 connections and be connected with the second heat sink the Two substrates 180.

It is provided with heat dissipation channel 138 it is preferred that heat dissipation channel 138 is located at the centre of base 130 and is square in base 130 Or it is oval.Base 130 is provided with the first heat sink 140 in heat dissipation channel 138 side, and base 130 is in heat dissipation channel 138 opposite side It is provided with the second heat sink, the first heat sink 140 and the second heat sink are arranged symmetrically.Base 130 is being connected with the first heat sink 140 Place is provided with the first installation portion, and the first heat sink 140 is located at the first installation portion.Base 130 is being provided with the second heat sink junction Second installation portion, the second heat sink is located at the second installation portion.

First heat sink 140 is provided with first substrate 170 away from the one side of the second heat sink, and the second heat sink dissipates away from first The one side of hot plate 140 is provided with second substrate 180.Base 130 is provided with first opening 131 corresponding with first substrate 170, base 130 are provided with second opening 132 corresponding with second substrate 180.It is provided with first between first heat sink 140 and the first opening 131 Reflective surface 133, the one the second are provided with the second reflective surface 134 between heat sink and the second opening 132.First reflective surface 133 and Two reflective surfaces 134 are all in circular arc.First substrate 170 and second substrate 180 are all packaged with LED lamp bead, first substrate 170 The light that LED lamp bead sends projects from first outlet after the first reflective surface 133.The light that the LED lamp bead of second substrate 180 sends Project from second outlet after the second reflective surface 134.First outlet and second outlet are equipped with lens.

First heat sink 140 is towards the one side of the second heat sink and the second heat sink towards the one of the first heat sink 140 Face is equipped with multiple radiating burrs 160, and radiating burr 160 is in cone.Radiating burr 160 is provided with multiple branches, each branch All in cone, multiple branches line centered on the axis of the burr 160 that radiates circumferentially arranges, the axis of each branch all with scattered The diameter parallel of hot burr 160 or in angle less than 30 °.

Base 130 is all square with heat dissipation channel 138.Base 130 is being led towards the first reflective surface 133 while being provided with first Air channel 135, base 130 is being provided with the second wind guide channel 136 towards the second reflective surface 134.First heat sink 140 is provided with the 3rd Wind guide channel 141, the second heat sink is provided with the 4th wind guide channel 151.First wind guide channel 135 is connected with the 3rd band air channel, the second wind-guiding Road 136 is connected with the 4th wind guide channel 151.First heat sink 140 is provided with the first air outlet 142 away from the first wind guide channel 135 one end, First air outlet 142 is connected with the 3rd wind guide channel 141.Second heat sink is provided with the second air-out away from the second wind guide channel 136 one end Mouth 152, the second air outlet 152 is connected with the 4th wind guide channel 151.First air outlet 142 inclines to away from the first opening 131 direction Tiltedly, the second air outlet 152 tilts to away from the second opening 132 direction, to be conducive to from the first air outlet 142 and the second air outlet The wind energy of 152 blowouts is enough blown upwards.First air outlet 142 is all connected with heat dissipation channel 138 with the second air outlet 152.Base 130 Equal away from the first wind guide channel 135 one end away from the second wind guide channel 136 one end and the second wind guide channel 136 in the first wind guide channel 135 It is provided with multi-disc catch 137.

Above-mentioned aeration type LED street lamp 10, the heat of first substrate 170 can be transferred in the first heat sink 140, second substrate 180 heat can be transferred in the second heat sink 150, and the first heat sink 140 and the second heat sink 150 can transfer heat to scattered In hot burr 160 and shed, multiple radiating burrs 160 can provide bigger area of dissipation, is conducive to improving aeration type LED The radiating efficiency of street lamp 10.The centre of base 130 offers heat dissipation channel 138, is conducive to the circulation of air, can improve radiating hair Air permeability around thorn 160, thus improve the radiating efficiency of aeration type LED street lamp 10.

First wind guide channel 135 and being communicated with of the 3rd wind guide channel 141 flow through heat dissipation channel 138 beneficial to the more air of guiding, Second wind guide channel 136 is also beneficial to guide more air to flow through heat dissipation channel 138 with connecting of the 4th wind guide channel 151, thus plus Fast radiating burr 160 surrounding air velocity of liquid assets, to improve the radiating efficiency of aeration type LED street lamp 10.Radiating burr 160 is provided with Multiple branches are conducive to provide bigger area of dissipation.For example, radiating burr arranges multiple radiating branches, and for example, described radiating Branch into lamellar, for example, described radiating branches into fin.

For the radiating effect of further heat radiation piece, increased thermal conductivity energy, for example, setting on described fin is radiated Area, it is sequentially overlapped setting the first film layer, the second film layer, third membrane layer, the 4th film layer and the 5th film layer, that is, the first film layer, the Two film layers, third membrane layer, the 4th film layer and the 5th film layer are sequentially overlapped and are attached to as radiating area on described fin, that is, Say, the first film layer is attached on described fin, the second film layer is attached in the first film layer, and third membrane layer is attached at the second film layer On, the 4th film layer is attached in third membrane layer, and the 5th film layer is attached in the 4th film layer.And for example, described radiating area is arranged at institute State one side or the two sides of fin;And for example, described radiating area is arranged on all surfaces of described fin.And for example, The some radiating fins of raised setting on described radiating burr, the surface of each described radiating fin all cover and arrange described radiating Area;And for example, described radiating burr is symmetrical arranged some radiating fins.

For example, the first film layer therein, has that insulation effect is good, the advantage that heat conductivity is big and thermal coefficient of expansion is low, such as This, when the heat of fin is directly delivered to described first film layer, described first film layer can guide quickly and in time scattered The heat that backing near zone is assembled.Secondly as the distance between described first film layer and fin are recently, what it undertook leads Thermic load is maximum, when the thermal coefficient of expansion of described first film layer is low it is possible to avoid described first film layer and described second film Produce gap between layer, and avoid described first film layer itself to produce gap, and then this gap and gap filling can be avoided empty The problem that the heat conductivity producing after gas reduces.Finally, due to the distance between described first film layer and fin are recently, easily There is the problem that electric elements are directly contacted with described first film layer, when the insulation effect of described first film layer is good it is possible to Avoid the first film layer energising, thus improve the security performance of described Novel heat dissipation material, safety standard is higher.

For example, the first film layer includes each component of following mass parts:40 parts~70 parts of carborundum, 13 parts of aluminium sesquioxide~ 55 parts, 2 parts~15 parts of silicon dioxide, 3 parts~25 parts of binding agent, 2 parts~20 parts of Kaolin, 0.5 part~2 parts of magnesium oxide, Dongyang 0.5 part~2 parts of soil, 0.5 part~2 parts of light weight calcium and 0.2 part~0.5% part of rare earth oxide.

Above-mentioned first film layer is by the use of carborundum as primary raw material, and mixes remaining and can be used for preparing the former of pottery Material, so that above-mentioned first film layer has been provided simultaneously with, and heat conductivity height, good insulation preformance, thermal coefficient of expansion be low and heat resistance Preferably advantage, additionally, above-mentioned first film layer also have the advantages that to be readily produced manufacture Manufacturing cost low.

Preferably, the first film layer includes each component of following mass parts:50 parts~60 parts of carborundum, 30 parts of aluminium sesquioxide ~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 magnesium oxide, 1 part~1.5 parts of Dongyang soil, 1 part~1.5 parts of light weight calcium and 0.3 part~0.4% part of rare earth oxide.Preferably, the first film layer bag Include each component of following mass parts:55 parts of carborundum, 40 parts of aluminium sesquioxide, 3 parts of silica 1,15 parts of binding agent, Kaolin 18 parts, 1.5 parts of magnesium oxide, 1.5 parts of Dongyang soil, 1.5 parts of light weight calcium and 0.3 part of rare earth oxide.

For example, the present invention also provides a kind of preparation method of described first film layer of any of the above-described embodiment, and it includes Following steps:By said ratio by carborundum, aluminium sesquioxide, silicon dioxide, binding agent, Kaolin, magnesium oxide, Dongyang 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.Need explanation , because above-mentioned second film layer is directly fitted with described first film layer, then described first film layer can will absorb from fin Heat be directly passed to described second film layer, this requires that described second film layer has high heat conductivity, can by from The heat that described first film layer absorbs is delivered to rapidly in described second film layer, additionally, also requiring that described second film layer simultaneously There is preferable heat dispersion, and relatively low thermal coefficient of expansion.

For example, a kind of second film layer, it is high that it has a heat conductivity, the advantage of perfect heat-dissipating and good mechanical property, so, When the heat absorbing from fin is directly passed to described second film layer by described first film layer, then described first film layer is inhaled The heat receiving just can be delivered to rapidly in described second film layer, and during heat conduction, excellent based on described second film layer Good heat dispersion, it is also possible that the heat stated in the second film layer is lost to the in the air in the external world.Secondly as described second , also in the distance with fin relative close, the temperature of itself also can be higher for film layer, but, based on described second film layer relatively Low thermal coefficient of expansion is it is possible to avoid producing gap between described second film layer and described third membrane layer it is ensured that both paste The compactness closed.For example, second film layer of an embodiment of the present invention, it includes each component of following mass parts:Graphene 80 Part~95 parts, 0.1 part~20 parts of CNT and 0.1 part~20 parts of carbon nano-fiber.Above-mentioned second film layer is by adopting graphite , for primary raw material so that its heat conductivity is greatly improved, heat-conducting effect is preferable for alkene.Additionally, being received by adding carbon again Mitron and carbon fiber, can form heat dissipation channel, and heat dispersion is also preferable.

Preferably, 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.Preferably, 90 parts of Graphene, 10 parts of CNT and 10 parts of carbon nano-fiber.

It should be noted that because the heat of fin is through front two-layer, that is, after described first film layer and described second film layer, Understand the in the air that the heat of some is lost to the external world.Further, since described second film layer relatively costly, its main cause It is, the primary raw material of described second film layer is the higher Graphene of preparation cost, therefore, heat transfer based on described third membrane layer And in the case that radiating burden is relatively small, described third membrane layer can use the most frequently used heat dissipation metal material in current market, With the effect reducing cost and obtain preferable heat transfer property.

For example, a kind of third membrane layer, it has, and heat conductivity is high, and perfect heat-dissipating, good mechanical property and cost are relatively low Advantage, so, when described second film layer heat transfer give described third membrane layer when, then described second film layer absorbs Heat just can relatively rapidly be delivered in described third membrane layer, and during heat transfer, described third membrane layer can also be by Partial heat is directly delivered to the in the air in the external world.For example, the third membrane layer of an embodiment of the present invention, it includes following matter Each component of amount part:93 parts~97 parts of copper, 2 parts~4.5 parts of aluminum, 0.1 part~0.3 part of nickel, 0.2 part~1.2 parts of vanadium, 0.1 part of manganese ~0.4 part, 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.

Above-mentioned third membrane layer 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 described third membrane layer can reach more than 380W/mK, can be relatively Rapidly the heat being transmitted in described second film layer is passed, and then be evenly dispersed in the overall knot of described third membrane layer On structure, to prevent heat from accumulating on the contact position between described second film layer and described third membrane layer, cause hot-spot The generation of phenomenon.And, the density of described third membrane layer but only has 8.0kg/m3~8.1kg/m3, and far smaller than fine copper is close Degree, so can mitigate the weight of described third membrane layer effectively, more conducively install and manufacture, also greatly reduce into simultaneously This.Additionally, described third membrane layer contain the aluminum that mass parts are 2 parts~4.5 parts, 0.1 part~0.3 part of nickel, 0.2 part~1.2 parts Vanadium, 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 Vanadium.With respect to fine copper, the ductility of third membrane layer, toughness, intensity and resistance to elevated temperatures are all improved significantly, and are difficult Sintering.

In order that described third membrane layer has preferably performance, for example, described third membrane layer contain mass parts be 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 be 0.2 part~ 1.2 parts of vanadium (V) can suppress third membrane layer crystal grain to grow up, and obtains more uniform tiny grain structure, to reduce the described 3rd The fragility of film layer, improves the overall mechanical property of described third membrane layer, to improve toughness and intensity.And for example, described third membrane layer The titanium (Ti) being 0.1 part~0.3 part containing mass parts, so that the crystal grain miniaturization of described third membrane layer, described to improve The ductility of third membrane layer;And for example, described third membrane layer also includes the silicon (Si) that mass parts are 1 part~2.5 parts, when described When three film layers contain appropriate silicon, can be on the premise of not affecting described third membrane layer heat conductivility, effectively lifting described the The hardness of three film layers and abrasion resistance.But, through multiple theory analysis and experiment evidence find, when silicon in third membrane layer quality too 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 fall Low, it is unfavorable for the production molding of described third membrane layer.

Preferably, described third membrane layer includes each component of following mass parts:94 parts~96 parts of copper, 3 parts~4 parts of aluminum, nickel 0.2 part~0.3 part, 0.5 part~1 part of vanadium, 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.Preferably, described third membrane layer includes each component of following mass parts:95 parts of copper, 3.5 parts of aluminum, 0.3 part of nickel, vanadium 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 0.2 part~0.3 part of vanadium.

It should be noted that when the heat of fin is through three first layers, i.e. respectively described first film layer, described second film After layer and described third membrane layer, have relatively large a part of heat and be dissipated in air dielectric in transmission, further, since institute The primary raw material stating third membrane layer is copper, its heavier mass, therefore, based on the relatively small feelings of described 4th convection burden Under condition, described 4th film layer can using radiating effect preferably, and lighter in weight, lower-cost material, to reduce cost And weight, and the effect obtaining preferable heat dispersion.

For example, a kind of 4th film layer, it has radiating effect preferably, lighter in weight and lower-cost advantage, so, when Described in the heat transfer of described third membrane layer during four film layers, then most heats can be scattered and disappeared by described 4th film layer In air dielectric, to coordinate described first film layer, described second film layer and described third membrane layer to complete the effect of gradient heat transfer, As such, it is possible to for different heat regions, that is, with fin pitch from distance to measure, realize heat gradient transmission and Lost effect, it is poor to solve traditional heat sinks insulation resistance, high cost, quality weight, the problem of heat conduction and radiating effect difference.

For example, the 4th film layer includes each component of following mass parts:47 parts~50 parts of copper, 49 parts~52 parts of aluminum, 0.2 part of magnesium ~0.7 part, 0.2 part~0.7 part of ferrum, 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 of vanadium ~0.3 part.

Above-mentioned 4th film layer contains the aluminum of the copper that mass parts are 47 parts~50 parts and 49 parts~52 parts, so that described The coefficient of heat conduction of the 4th film layer is maintained at 300W/mK~350W/mK, to ensure that described 4th film layer can be by by the described 3rd The heat that film layer passes over rapidly is dissipated in air dielectric, and then prevents heat from piling up in described 4th film layer, makes Hot-spot phenomenon is become to produce.With respect to prior art, merely adopt price costly and the larger copper of quality, the above-mentioned 4th Film layer both had good heat dissipation effect, rapidly heat can be lost in the air, have again lighter weight, be easily installed casting, The less expensive advantage of price.Meanwhile, with respect to prior art, merely using the aluminium alloy that radiating effect is poor, the above-mentioned 4th Film layer has more preferably heat transfer property.Additionally, the 4th film layer contain the magnesium that mass parts are 0.2 part~0.7 part, 0.2 part~0.7 part Ferrum, 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, send 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, can give the 4th film layer yield strength to a certain extent And tensile strength.

Preferably, described 4th film layer includes each component of following mass parts:48 parts~49 parts of copper, 50 parts~52 parts of aluminum, 0.2 part~0.5 part of magnesium, 0.2 part~0.5 part of ferrum, 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.Preferably, described 4th film layer includes each component of following mass parts:48 parts of copper, 51 parts of aluminum, magnesium 0.3 part, 0.3 part of ferrum, 0.4 part of manganese, 0.4 part of titanium, 0.08 part of chromium and 0.3 part of vanadium.

In order to mitigate the weight of described 4th film layer further, and obtain preferable radiating effect, for example, the present invention also carries For auxiliary the 4th film layer, described auxiliary the 4th film layer is arranged at described 4th film layer away from described third membrane layer one side.

For example, auxiliary the 4th film layer includes each component of following mass parts:88 parts~93 parts of aluminum, 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 ferrum, 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.It is 88 parts~93 parts that above-mentioned auxiliary the 4th film layer contains mass parts Aluminum, so that the coefficient of heat conduction of auxiliary the 4th film layer is maintained at 200W/mK~220W/mK, radiating effect is preferable, Ke Yiman After-heat is delivered to the needs in air dielectric by foot, and meanwhile, its quality is lighter, more conducively transports.Additionally, auxiliary the 4th film Layer containing mass parts be 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 The ferrum of part, 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 Vanadium, can significantly improve auxiliary the 4th film layer heat dispersion.For example, auxiliary the 4th film layer contains mass parts for 5.5 parts The copper of~10.5 parts of silicon and 0.05 part~0.3 part is it can be ensured that auxiliary the 4th film layer has good mechanical properties and quality relatively Light advantage, at the same time it can also improve the heat dispersion of auxiliary the 4th film layer further.And for example, auxiliary the 4th film layer also includes Mass parts are 0.3 part~0.6 part of lead (Pb), when auxiliary the 4th film layer lead that contains 0.3 part~0.6 part can improve auxiliary the The tensile strength of four film layers, as such, it is possible to prevent when auxiliary the 4th film layer is cast punching press slabbing or membranaceous structure, Pullled stress by excessive punching press and rupture.And for example, auxiliary the 4th film layer also includes mass parts is 0.02 part~0.04 part Niobium (Nb).

It should be noted that because the heat of fin is through first four layers, i.e. described first film layer, described second film layer, institute After stating third membrane layer and described 4th film layer, the heat of a greatly part has been lost to the in the air in the external world.Therefore, based on described In the case that the radiating burden of the 5th film layer is relatively small, and self-temperature is relatively low, the impact pole of the larger generation of thermal coefficient of expansion In the case of little, described third membrane layer can use the most frequently used plastic material in current market, to reduce cost and weight, And obtain preferable surface protection performance.

For example, a kind of 5th film layer, it is good that it has a surface protection performance, the relatively low advantage of lighter in weight, cost, so, when When described 5th film layer is located at the outermost layer of described Novel heat dissipation material, can have preferable heat dispersion, preferable surface Protective value, lighter weight and relatively low cost.For example, the 5th film layer includes each component of following mass parts:Described 5th Film layer includes 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, 10 parts~20 parts of water-soluble silicate, 1 part~8 parts of hexagonal boron nitride, 2 parts~5 parts of BMI, silane coupler 0.5 Part~2 parts, 0.25 part~1 part of antioxidant.When above-mentioned water-soluble silicate is mixed with graphite and carbon fiber, under the high temperature conditions may be used With with being copolymerized of polyamide, form heat dissipation channel, thus improving heat dispersion, and more fluffy empty structure, quality is more Gently.Further, since with the addition of carbon fiber, its surface protection performance and mechanical performance are more preferable, for example, more antioxidation, more resistant to soda acid, More resistant to corrosion.

Preferably, described 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.Preferably, described 5th film layer includes following quality Each component of part:35 parts of graphite, 28 parts of carbon fiber, 45 parts of polyamide, 18 parts of water-soluble silicate, 5 parts of hexagonal boron nitride, span Come 3.5 parts of acid imide, 1.8 parts of silane coupler, 0.7 part of antioxidant.

In order to preferably make described first film layer, described second film layer, described third membrane layer, described 4th film layer and institute State the heat conduction of the 5th film layer and sinking path more optimizes, therefore, considering cost, weight, heat conduction and radiating effect, and In the case of surface protection performance, described second film layer of an embodiment of the present invention, described third membrane layer, described 4th film layer And described 5th thicknesses of layers is than for 1~1.5:8~12:5~7:6~10:2~2.5, so, so that described first film Layer, described second film layer, described third membrane layer, described 4th film layer and the heat conduction of described 5th film layer and sinking path are more excellent Change.

So that each Rotating fields of described Novel heat dissipation material, that is, described first film layer, described second film layer, described Three film layers, described 4th film layer and described 5th film layer are preferably fixed together, to improve structural stability can, for example, institute State the first film layer, described second film layer, the adjacent interfaces two-by-two of described third membrane layer, described 4th film layer and described 5th film layer Between be provided with inserted tooth and caulking groove, when adjacent two layers structure is fitted, inserted tooth is embedded in caulking groove, so so that described Each Rotating fields of Novel heat dissipation material, i.e. described first film layer, described second film layer, described third membrane layer, described 4th film layer Preferably it is fixed together with described 5th film layer, to improve structural stability can.And for example, described first film layer, described second Be provided between film layer, described third membrane layer, described 4th film layer and the adjacent interfaces two-by-two of described 5th film layer buckle and Draw-in groove, when adjacent two layers structure is fitted, buckle is embedded in draw-in groove, so so that each layer of described Novel heat dissipation material Structure, that is, described first film layer, described second film layer, described third membrane layer, described 4th film layer and described 5th film layer are more preferable Be fixed together, to improve structural stability can further.

In order to further such that described first film layer, described second film layer, described third membrane layer, described 4th film layer and institute State the 5th film layer to be fixed together, to improve structural stability further, and reduce to described Novel heat dissipation material heat conduction and biography The impact of hot property.

For example, setting the first filling adhesive layer between the first film layer and the second film layer, between the second film layer and third membrane layer Setting the second filling adhesive layer, is provided with the 3rd filling adhesive layer, the 4th film layer and the 5th between third membrane layer and the 4th film layer Setting the 4th filling adhesive layer between film layer.It is appreciated that the first film layer, the second film layer, the second film layer, third membrane layer, the 4th Exist between the adjacent interfaces two-by-two of film layer and the 5th film layer that structure is small and a fairly large number of gap, its reason mainly exists In, due to the binding face defective tightness of above layers material, and pass through to arrange the first filling adhesive layer, the second filling adhesive layer, 3rd filling adhesive layer and the 4th filling adhesive layer can preferably fill these gaps, also function to the effect bonding simultaneously.

For example, described first filling adhesive layer, it includes each component of following mass parts:300 parts of nano alumina particles ~1000 parts, 5 parts~30 parts of methyl vinyl silicone rubber, 10 parts~50 parts of vinyl silicone oil, 10 parts~100 parts of dimethicone With 1 part~20 parts of MQ silicones.Preferably, described first filling adhesive layer includes each component of following mass parts:Nano oxidized 800 parts~1000 parts of alumina particles, 20 parts~30 parts of methyl vinyl silicone rubber, 40 parts~50 parts of vinyl silicone oil, dimethyl-silicon 80 parts~100 parts of oil and 15 parts~20 parts of MQ silicones.Preferably, described first filling adhesive layer includes each of following mass parts Component:900 parts of nano alumina particles, 25 parts of methyl vinyl silicone rubber, 45 parts of vinyl silicone oil, 85 parts of dimethicone and 20 parts of MQ silicones.

For example, described second filling adhesive layer, it includes each component of following mass parts:200 parts of nano alumina particles ~800 parts, 10 parts~40 parts of methyl vinyl silicone rubber, 10 parts~50 parts of vinyl silicone oil, 10 parts~100 parts of dimethicone With 1 part~20 parts of MQ silicones;

Preferably, described 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.

Preferably, described second filling adhesive layer includes each component of following mass parts:600 parts of nano alumina particles, 15 parts of methyl vinyl silicone rubber, 35 parts of vinyl silicone oil, 65 parts of dimethicone and 15 parts of MQ silicones.

For example, described 3rd filling adhesive layer, it includes each component of following mass parts:200 parts of nano alumina particles ~700 parts, 10 parts~40 parts of methyl vinyl silicone rubber, 10 parts~50 parts of vinyl silicone oil, 10 parts~100 parts of dimethicone With 1 part~20 parts of MQ silicones.

Preferably, described 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.

Preferably, described 3rd filling adhesive layer includes each component of following mass parts:500 parts of nano alumina particles, 25 parts of methyl vinyl silicone rubber, 25 parts of vinyl silicone oil, 30 parts of dimethicone and 8 parts of MQ silicones.

For example, described 4th filling adhesive layer, it includes each component of following mass parts:150 parts of nano alumina particles ~700 parts, 15 parts~45 parts of methyl vinyl silicone rubber, 10 parts~50 parts of vinyl silicone oil, 10 parts~100 parts of dimethicone With 1 part~20 parts of MQ silicones.

Preferably, described 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.

Preferably, described 4th filling adhesive layer includes each component of following mass parts:250 parts of nano alumina particles, 18 parts of methyl vinyl silicone rubber, 20 parts of vinyl silicone oil, 95 parts of dimethicone and 5 parts of MQ silicones.

Above-mentioned first filling adhesive layer, second filling adhesive layer, the 3rd filling adhesive layer and the 4th filling adhesive layer all with Organic siliconresin is matrix material, and adds the nano alumina particles with preferable heat-conducting effect.By in organic siliconresin Conduction powder nano aluminium oxide is added in matrix, heat conductivity high filling jointing material stronger such that it is able to prepare bonding force, And then can preferably make described first film layer, described second film layer, described third membrane layer, described 4th film layer and described Five film layers are fixed together, to improve structural stability further.

It is emphasized that the first filling adhesive layer, the second filling adhesive layer, the 3rd filling adhesive layer and the 4th filling are viscous Close the content of nano alumina particles in layer to successively decrease successively, be because heat load be also from the first film layer, the second film layer, the 3rd Film layer, the 4th film layer to described 5th film layer is successively decreased successively, as such, it is possible to preferably get gradient heat conduction and the effect of radiating.

Hold described first film layer, described second film layer, described third membrane layer, described 4th film layer and institute in order to preferably viscous State the 5th film layer, avoid increasing excessive thickness simultaneously, and reduce the impact to heat conduction and heat dispersion, for example, described first Filling adhesive layer, described second filling adhesive layer, described 3rd filling adhesive layer and the 4th filling adhesive layer thickness than for 1~ 1.5:2~2.5:3~3.5:4~4.5, and for example, the thickness of described first filling adhesive layer and described first film layer ratio is for 1:50 ~80.

Above-mentioned Novel heat dissipation material pass through be sequentially overlapped setting the first film layer, the second film layer, third membrane layer, the 4th film layer and 5th film layer, it is possible to obtain good insulating, the coefficient of expansion are low, heat conductivity is big, the advantage of good heat dissipation effect and light weight.

Embodiment described above only have expressed the present invention preferred embodiment, and its description is more concrete and detailed, but Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that the ordinary skill people for this area For member, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the present invention's Protection domain.Therefore, the protection domain of patent of the present invention should be defined by claims.

Claims (6)

1. a kind of aeration type LED street lamp, the lamp stand (120) be connected including lamp holder (110) and with described lamp holder (110), it is special Levy and be:
Described lamp holder (110) includes the first heat sink (140) and the described bottom that base (130) is connected with described base (130) First substrate (170) that seat (130) the second heat sink (150) of connecting is connected with described first heat sink (140) and with institute State the second substrate (180) that the second heat sink (150) connects;
It is provided with heat dissipation channel (138), described base (130) is provided with described heat dissipation channel (138) side in described base (130) Described first heat sink (140), described base (130) is provided with described second heat sink in described heat dissipation channel (138) opposite side (150), described base (130) is provided with first opening (131) corresponding with described first heat sink (140), described base (130) It is provided with second opening (132) corresponding with described second heat sink (150), described first heat sink (140) is opened with described first It is provided with the first reflective surface (133) between mouth (131), be provided between described second heat sink (150) and described second opening (132) Second reflective surface (134);
Described first substrate (170) located at described first heat sink (140) away from described second heat sink (150) one side, institute State second substrate (180) located at described second heat sink (150) away from described first heat sink (140) one side, described first Heat sink (140) dissipates towards the one side of described second heat sink (150) and described second heat sink (150) towards described first The one side of hot plate (140) is equipped with multiple radiatings burr (160), and described radiating burr (160) is provided with multiple branches, described branch For fin, described fin arranges radiating area, its be sequentially overlapped setting the first film layer, the second film layer, third membrane layer, the 4th Film layer and the 5th film layer.
2. aeration type LED street lamp according to claim 1 it is characterised in that:Described first reflective surface (133) and described the Two reflective surfaces (134) are all in circular arc.
3. aeration type LED street lamp according to claim 1 it is characterised in that:Described base (130) and described heat dissipation channel (138) all it is square.
4. aeration type LED street lamp according to claim 1 it is characterised in that:Each described branch is all in cone.
5. aeration type LED street lamp according to claim 1 it is characterised in that:Multiple described branches circumferentially arrange, each The diameter parallel all with described radiating burr (160) for the axis of described branch.
6. aeration type LED street lamp according to claim 1 it is characterised in that:Described base (130) is towards described first , while being provided with the first wind guide channel (135), described base (130) is towards described second reflective surface (134) for reflective surface (133) It is provided with the second wind guide channel (136), described base (130) is all provided with described first wind guide channel (135) and the second wind guide channel (136) place There is multi-disc catch (137).
CN201510206127.3A 2015-04-27 2015-04-27 Aeration type LED street lamp CN104763957B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103256582A (en) * 2013-05-22 2013-08-21 北京铨富光电科技有限公司 Gas heat convection heat dissipating structure of LED bulb
CN204100042U (en) * 2014-09-22 2015-01-14 苏州承源光电科技有限公司 Vertical lawn lamp

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110101789A (en) * 2010-03-09 2011-09-16 김현민 Lighting cover having air pipe and led lighting apparatus using the same
KR101178262B1 (en) * 2012-04-03 2012-08-29 김화자 Bulb-type led lighting fixtures

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103256582A (en) * 2013-05-22 2013-08-21 北京铨富光电科技有限公司 Gas heat convection heat dissipating structure of LED bulb
CN204100042U (en) * 2014-09-22 2015-01-14 苏州承源光电科技有限公司 Vertical lawn lamp

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