CN104948955B - Household illumination lamp - Google Patents
Household illumination lamp Download PDFInfo
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- CN104948955B CN104948955B CN201510342717.9A CN201510342717A CN104948955B CN 104948955 B CN104948955 B CN 104948955B CN 201510342717 A CN201510342717 A CN 201510342717A CN 104948955 B CN104948955 B CN 104948955B
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Abstract
A household illumination lamp comprises a radiator, a light source assembly, a base and a lampshade, wherein the lampshade covers the base and defines a closed space; the radiator and the light source assembly are contained in the closed space; the radiator comprises a cooling shell; through holes are formed in the cooling shell; the light source assembly is arranged on the periphery of the cooling shell in a sleeving mode. As the light source assembly is arranged on the periphery of the cooling shell in the sleeving mode, heat generated by a light source can be rapidly dispersed to external air through the cooling shell and the base, the cooling effect is good, and at the same time, the light emitting angle of the household illumination lamp can be enlarged.
Description
Technical field
The present invention relates to field of LED illumination, more particularly in being related to a kind of household lighting fixtures.
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 potted element, the LED light of LED wafer is thoroughly
Mirror, light-scattering component, high efficiency and heat radiation element, light reflection and light diffusing board etc..
Radiating is a principal element for affecting LED lamp illumination intensity.LED lamp is higher than traditional electric filament lamp efficiency
80%, but its LED component and drive circuit heat dissipation capacity are very big.If these heats do not have it is appropriate emit, LED
The luminosity of tool and life-span will drastically decline.All the time, radiating is bad can cause power supply damage, light decay quickening, life-span to subtract
Short the problems such as, be the most important thing of LED illumination System performance boost all the time.LED luminous efficiencies and service life are lifted, is solved
LED product heat dissipation problem is one of most important problem at this stage, and the development of LED industry is also with high power, high brightness, little
Size LED product is its development priority, therefore it provides having its high-cooling property, the heat-radiating substrate of precise measure also becomes future
In the trend of LED heat radiation substrate development
For example, Chinese patent 201310348357.4 discloses a kind of LED radiator aluminum alloy and preparation method thereof, should
Aluminium alloy each element is consisted of by mass percentage：Si2.2-2.8、Cu1.5-2.5、Mg1.1-1.6、Zn3.7-4.4、Mn0.6-
1.2、Fe0.5-1、Ni0.4-0.8、Cr0.2-0.3、Ti0.15-0.25、Ge0.08-0.12、Th0.04-0.07、Y0.03-
0.05th, Sm0.02-0.03, Tb0.02-0.03, balance of aluminum.Aluminium alloy of the present invention has while higher mechanical strength is ensured
There is excellent heat conductivility, thermal conductivity is in 225-250Wm-1K-1, perfect heat-dissipating can effectively solve the problem that current high-powered LED lamp
Existing heat dissipation problem, improves its functional reliability and service life.
And for example, Chinese patent 201310212934.7 provide LED lamp heat sink material and preparation method thereof and radiator,
LED lamp, it discloses a kind of LED lamp heat sink material, and it is as follows with the formula of volume percentage:Epoxy resin 15-
27%th, ceramic powder filled material 73-85%；Wherein, the epoxy resin is from the ring that epoxide number is 0.38-0.54mol/100g
Oxygen tree fat；The ceramic powder filled material from one or more in mullite-corundum, mullite, silica glass phase,
The mullite-corundum, mullite, silica glass are obtained for ceramic firing waste material through pretreatment.Accordingly, this
Bright to also disclose a kind of method for preparing above-mentioned LED lamp heat sink material, one kind adopts radiator made by above-mentioned heat sink material
And LED lamp.The present invention makes the heat sink material of environment-friendly type using shraff, and good heat dissipation effect, cost of material are low, weight
Gently, safety guarantee is good, contributes to realizing the minimizing of shraff, resource, innoxious, the sustainable development of promotion china industry
Exhibition.
And for example, Chinese patent 201410322242.2 discloses a kind of aluminum-base composite radiating material of LED doping neodymium oxides
Material, and in particular to a kind of aluminum-base composite heat sink material and its production method of LED doping neodymium oxides, the heat sink material is by following
The raw material of weight portion is made：Aluminum 73-75, aluminium nitride 10-12, iron oxide black 4-5, Dineodymium trioxide 2-3, slag 6-8, metakaolin
10-12, waterglass 6-8, ferrous sulfate 2-3, sucrose fatty acid ester 2-5, auxiliary agent 4-5；The present invention heat sink material combine aluminum,
The advantage of the compositions such as aluminium nitride, metakaolin, has good heat conduction and insulating properties concurrently, and all materials are mixed in water glass solution
Grinding is closed, the compatibility of raw material is enhanced so that material more easy-formation, the Dineodymium trioxide of doping can improve the radiating of material and resistance to
Warm nature energy, the heat sink material compact structure that the present invention is prepared, bright color, light weight is firm, and heat stability is good, prolonged resistance to
With the heat-sinking capability of high-efficient and lasting is effectively protected LED lamp, greatly prolongs the service life of light fixture.
However, lighting disclosed above yet suffers from the defects such as heat conductivility is poor, radiating effect is not good.
The content of the invention
Based on this, it is necessary to for the problems referred to above, there is provided the higher home lighting of a kind of good heat dispersion performance, radiating efficiency
Light fixture.
A kind of household lighting fixtures, it includes：Radiator, light source assembly, base and lampshade, the lampshade is located at described
Base simultaneously surrounds closing space, and the radiator and the light source assembly are placed in the closing space, and the radiator includes
Radiating shell, the radiating shell offers through hole, and the light source assembly is sheathed on the periphery of the radiating shell.
Wherein in one embodiment, the light source assembly includes lamp plate and the LED lamp bead located at the lamp plate, the lamp
Sleeve-board is located at the periphery of the radiating shell.
Wherein in one embodiment, the radiating shell is cylindrical structure, and the lamp plate is cylindrical structure.
Wherein in one embodiment, the radiating shell offers blind hole, the blind hole away from the side of the base
It is interior filled with radiator liquid.
Wherein in one embodiment, the blind hole is mutually communicated to form annular groove.
Wherein in one embodiment, the radiator also includes lid, and the lid is fixedly installed on the radiation shell
Body, and form closed area with the blind hole.
Wherein in one embodiment, the lid is provided with some heat pipes, and the heat pipe is led with the radiator liquid
It is logical.
Wherein in one embodiment, the heat pipe has helicoidal structure.
Wherein in one embodiment, the heat pipe has wavy shaped configuration.
Wherein in one embodiment, the heat pipe and the lid are formed in one structure.
Above-mentioned household lighting fixtures, the heat energy produced by the periphery that light source assembly is sheathed on radiating shell, light source
Enough quickly scattered and disappeared into outside air by radiating shell and base, radiating effect is preferable, and, also help increase domestic and shine
The lighting angle of bright lamp tool.
Above-mentioned radiator, be filled with multiple blind holes, blind hole radiator liquid, LED by arranging on the surface of radiating shell
The even heat ground that lamp bead is produced is absorbed by radiator liquid, it is to avoid because causing the amount of heat cannot be in the short time the reason for thermal capacitance is little
Inside shed and LED is caused to damage.And using the mobility of liquid, heat Quick uniform can be made to be dispersed in radiating shell
On, because radiating shell is provided with through hole, gas channel is internally formed in radiating shell, make heat quickly scatter and disappear to outside air
In, gas-liquid double-radiation function is realized, radiating effect is preferable.
Description of the drawings
Fig. 1 is the configuration schematic diagram of household lighting fixtures in one embodiment of the invention；
Fig. 2 be Fig. 1 shown in household lighting fixtures in radiator configuration schematic diagram；
Fig. 3 is the structural representation of radiator in another embodiment of the present invention；
Fig. 4 is the structural representation of radiator in another embodiment of the present invention.
Specific embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.Elaborate many details in order to fully understand this in the following description
It is bright.But the present invention can be implemented with being much different from alternate manner described here, and 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.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicates or imply that the device or element of indication must
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or it is integral；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clearly restriction.For one of ordinary skill in the art
For, can as the case may be understand above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
The present invention provides a kind of household lighting fixtures, and it includes：Radiator, light source assembly, base and lampshade, the lampshade
Cover at the base and surround closing space, the radiator and the light source assembly are placed in the closing space, described
Radiator includes radiating shell, and the radiating shell offers through hole, and the light source assembly is sheathed on the outer of the radiating shell
Week.
Fig. 1 is referred to, household lighting fixtures 10 include：Radiator 100, light source assembly 200, base 300 and lampshade 400,
Lampshade 400 covers at base 300 and surrounds closing space, and radiator 100 and light source assembly 200 are placed in closing space, radiating
Device 100 includes radiating shell 110, and radiating shell 110 offers through hole 113, and light source assembly 200 is sheathed on radiating shell 110
Periphery.Above-mentioned household lighting fixtures, by the periphery that light source assembly is sheathed on radiating shell, the heat that light source is produced can lead to
Cross radiating shell and base quickly scatters and disappears into outside air, radiating effect is preferable, and, also help increase household illuminating lamp
The lighting angle of tool.
Refer to Fig. 2, radiator 100, including：Radiating shell 110 and lid 120, radiating shell 110 includes first surface
111 and the second surface 112 that is oppositely arranged with first surface 111, the centre position of the first surface 111 of radiating shell 110 is opened
Through hole 113 and the multiple blind holes 114 around the periphery of through hole 113 are provided with, the first end of through hole 113 is located at the radiating shell
The centre position of 110 first surface 111, the second end is located in the second surface 112 of radiating shell 110, blind hole 114 and is filled with
Radiator liquid.Lid 120 is fixedly connected on radiating shell 110, and forms closed area with blind hole 112.Above-mentioned radiator, passes through
Arrange on the surface of radiating shell and be filled with multiple blind holes, blind hole radiator liquid, the even heat ground that LED lamp bead is produced is dissipated
Hot liquid absorbs, it is to avoid LED is caused because causing amount of heat to shed at short notice the reason for thermal capacitance is little damage.
And using the mobility of liquid, heat Quick uniform can be made to be dispersed on radiating shell, because radiating shell is provided with through hole,
Gas channel is internally formed in radiating shell, makes heat quickly scatter and disappear into outside air, realize gas-liquid double-radiation function, radiated
Effect is preferable.
Specifically, light source assembly 200 includes lamp plate 210 and the LED lamp bead 220 located at lamp plate 210, and lamp plate 210 is sheathed on
The periphery of radiating shell 110.In the present embodiment, radiating shell 110 is cylindrical structure, and lamp plate 210 is cylindrical structure.
In order to realize being uniformly distributed for heat, for example, multiple blind holes are uniformly distributed along the through hole, and for example, multiple
The form and dimension all same of the blind hole, so, contributes to realizing being uniformly distributed for heat.And for example, multigroup blind hole is set, often
The form and dimension all same of each blind hole in group blind hole, different group of each blind hole form and dimension is different.Preferably, away from institute
The blind hole of through hole is stated, its volume is more than the blind hole near the through hole.As such, it is possible to obtain radiating effect evenly.
It is to improve radiating efficiency, for example, described blind in order to increase the contact area of radiator liquid and radiating shell in blind hole
Hole is column structure, because in the case of equal volume, the surface area of cylinder is larger, as such, it is possible to increase radiator liquid
With the contact area of radiating shell, the radiating efficiency of heat abstractor is improved.
Further, for the ease of the production process of radiating shell, and heat is uniformly distributed, for example, each described blind
The radius in hole is identical, and and for example, the depth of each blind hole is identical, and and for example, the circle center line connecting of the blind hole forms circle, so, can
Process is manufactured with facilitate radiating shell, while additionally aid realizing being uniformly distributed for heat.
In the present embodiment, the radiator liquid is the 50%～100% of the blind hole volume, and the radiator liquid is in mark
Quasi- atmospheric pressure boiling point >=70 DEG C, thermal capacitance >=3 × 103J/(kg·℃).Preferably, the radiator liquid be distilled water, ammonia,
At least one in methanol, ethanol, hexanol, acetone, heptane or conduction oil, for example, the radiator liquid is distilled water and ethanol
Mixture.And for example, the radiator liquid includes each component of following mass parts：Distilled water：75 parts～78 parts, ethanol：22 parts
～25 parts, Sodium Chloride：0.5 part～1 part, sodium nitrate：0.5 part～1.5 parts, Dexol：0.5 part～1.5 parts, the nitrogen of benzo three
Azoles：0.2 part～0.5 part, when the temperature of radiator liquid is more than 30 DEG C, there is gasification and make steaming in the ethanol being diluted in distilled water
Distilled water gradually gasifies, the ethanol and distilled water of gasification be repeatedly evaporated in the blind hole of sealing condensation and with containing cavity in
Wall carries out heat exchange, and the addition of Sodium Chloride can reduce the boiling point of ethanol and distilled water, thus can accelerate distilled water with
And the cycle period of evaporation and the condensation of ethanol, and can prevent when temperature is relatively low, distilled water solidifies, nitric acid
The compounding of sodium and BTA can be used as corrosion inhibitor or corrosion inhibiter, and it can be formed uniformly on the surface of the inwall of blind hole
Passivation layer and organic film, prevent corrosion reaction further generation, in addition, the addition of Dexol can play freeze proof suppression
Preparation and the effect of scale removal.
Preferably, the radiator liquid is also including the conductive particles that mass parts are 5 parts～25 parts.Further, heat conduction is micro-
Grain includes nano level metal powder and nano-carbon material granule.Further, conductive particles are copper nanoparticle, Nano carbon balls or carbon
Nanotube etc..By adding conductive particles, the radiating efficiency of LED heat dissipation structure can be further improved.
Further, in order to avoid radiator liquid being heated repeatedly, during evaporative condenser with blind hole in radiating shell
There is chemical reaction in inwall, for example, the material of the radiating shell is adapted to radiator liquid, i.e. the material of radiating shell with it is scattered
There is no chemical reaction in hot liquid.And for example, the radiating shell is made up of aluminium alloy, and the aluminium alloy includes following mass parts
Each group is grouped into：Aluminum：80.2 parts～89.5 parts；Magnesium：10.3 parts～15.1 parts；Silicon：0.5 part～1.5 parts；Copper：1.2 parts～3.5
Part；Manganese：0.2 part～1.0 parts；Nickel：2.3 parts～4.6 parts；Molybdenum：0.1 part～0.5 part；Zirconium：0.2 part～0.5 part；Above-mentioned aluminium alloy
Mainly it is made up of aluminum, magnesium, the lighter weight of the base material of preparation not only can be made, heat conductivity is preferable, and silicon, copper, manganese, nickel, molybdenum
Addition can make the inwall of blind hole that there is larger intensity, additionally, the endurance that the addition of zirconium can improve accommodating cavity wall is special
Property and decay resistance, but the content of zirconium be more than 0.5 part when, its decay resistance can't improve less, and can affect
The surrender degree and other mechanical mechanics properties of material.
Further, the inwall of the blind hole of the radiating shell is provided with protective layer, and and for example, the protective layer includes stone
The material with carbon elements such as ink, nano carbon material, diamond like carbon, chemical physical property temperature, heat conductivity is good.And for example, the protective layer be located at
Diamond like carbon (DLC) coating on the blind hole inwall, and for example, the diamond-like coating has been additionally provided with the blind hole inwall
Gu the chrome coating of attached effect, so that diamond-like coating has stronger adhesion with the inwall of blind hole.Preferably, the eka-gold
The thickness of hard rock coating is 1.0～2.0 microns, and the thickness of chrome coating is 10～40 nanometers.And for example, the diamond-like coating
Composition includes 20%～60% graphite-phase and 80%～40% diamond phase.
Further, the radiating shell is made up of heat conduction polyamide compoiste material, the heat conduction polyamide compoiste material
Make including each component of following weight portion：Polyamide：20.6 parts～45.2 parts, heat filling：60.2 parts～75.8 parts,
Antioxidant：0.2 part～0.3 part, coupling agent：0.5 part～0.7 part, auxiliary agent：0.8 part～1.2 parts, lubricant：0.2 part～0.4
Part, levelling agent：0.3 part～0.6 part.And for example, the heat filling is in carborundum, aluminium oxide, graphite, boron nitride or aluminium nitride
At least one.And for example, the coupling agent is titante coupling agent or silane coupling agent.And for example, the titanium esters class is coupled
Agent is the stearic acid titanate esters of isopropyl three, and the silane coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane.Again
Such as, the antioxidant is Hinered phenols primary antioxidant and the compound of phosphorous acid esters auxiliary antioxidant, the main antioxygen of Hinered phenols
Agent is 1 with the weight ratio of phosphorous acid esters auxiliary antioxidant：1～2.And for example, described Hinered phenols primary antioxidant is anti-
Oxygen agent N, N '-bis--(3- (3,5- di-tert-butyl-hydroxy phenyl) propiono) hexamethylene diamine, the phosphorous acid esters aid in antioxygen
Agent be [2,4- di-tert-butyl-phenyls] phosphite ester of antioxidant three or antioxidant 4,4 '-[1,1 '-xenyl] subunit di 2 ethylhexyl phosphonic acid-
Four [the 2-methyl-2-phenylpropane bases of 2,4- bis-] esters.And for example, the lubricant is silicone or N, N '-ethylene bis stearamide.And for example, the levelling
Agent is silicone levelling agent.Above-mentioned radiating shell, due to adopting polyamide resin material with heat filling for raw material so as to lead
Hot good, mechanical strength is higher, and compared with radiating shell made by traditional aluminum alloy materials, it has, and density is relatively low, weight
Less, corrosion-resistant, easy processing, lower-cost advantage.
Further, in order to ensure the mechanical performance of radiator, for example, the wall thickness of the radiating shell is 5～30 millimeters,
And for example, the wall thickness of the radiating shell is 10～20 millimeters, in this manner it is ensured that radiator has preferable mechanical performance, together
When avoid radiating shell thickness it is larger hinder heat transmission.
Further, in order to provide radiating effect, for example, each blind hole is mutually communicated to form circular passage, specifically,
Fig. 3 is referred to, the first surface 111 of radiating shell 110 forms cannelure 115, when radiator liquid reaches gasification temperature, cooling fluid
The steam of body will quickly fill with whole cannelure, make radiating shell realize the substantially uniform distribution of temperature everywhere, realize the fast of heat
Speed dispersion and transmission, further improve radiating efficiency.
Because contact of the radiator liquid with radiating shell is only the side wall of cannelure, i.e. radiator liquid connects with radiator
Contacting surface product is the area of the inner surface of the cylinder, in order to further increase the radiating effect of radiator, for example, the annular
The side wall of groove is additionally provided with some auxiliary heat conduction posts, and and for example, the section of each auxiliary heat conduction post is arc, and for example, several
The auxiliary heat conduction post is uniformly distributed in the side wall of the cannelure, and and for example, some auxiliary heat conduction post continuous distribution pass through
Auxiliary heat conduction body is set, the contact area of radiator liquid and radiating shell can be increased, so as to improve heat transference efficiency, improve and dissipate
Thermal effect.
Specifically, Fig. 3 is referred to, the side wall of cannelure 115 is provided with some auxiliary heat conduction posts 116, each auxiliary heat conduction post
116 section is cylinder, and the size and shape of each auxiliary heat conduction post 116 is identical, is uniformly arranged in the interior of cannelure 115
Wall, and the continuous arrangement of auxiliary heat conduction post 116.As such, it is possible to further increase the contact area of radiator liquid and radiating shell, carry
High cooling efficiency, while can also avoid taking space larger in cannelure and reducing the volume of radiator liquid.Certainly, aid in
Thermal column is not limited to above-mentioned shape, and for example, the section of the auxiliary heat conduction post is triangle, and for example, the auxiliary heat conduction
The section of post is trapezoidal, and and for example, the cross sectional shape of the auxiliary heat conduction post is rectangle.
For the ease of the process of manufacturing of radiator, for example, the auxiliary heat conduction post is integrated with the radiating shell
Molding structure, and for example, the auxiliary heat conduction post forms integrated formed structure with the radiator by casting process, so, can
Process is manufactured with facilitate radiator.
In order to further increase convection heat transfer' heat-transfer by convection area, to improve the efficiency of convection heat transfer' heat-transfer by convection, radiating efficiency, for example, institute are improved
Through hole is stated for manhole.And for example, the area of the through hole account for the first surface area of the radiating shell 40%～
80%, it is preferred that the circular area of the through hole accounts for the 50%～60% of the first surface area of the radiating shell, both
Can make radiator that there is stronger mechanical stability, while area of dissipation can also be improved, increase convection heat transfer' heat-transfer by convection efficiency, so as to
Improve heat dispersion.
Further, it is provided with radiating fin on the hole wall of the through hole.For example, the radiating fin is along the through hole
Hole wall is radially extended.And for example, the radiating fin is laminated structure.And for example, the width of the radiating fin is less than the through hole
Radius.And for example, the width of the radiating fin is less than the 2/3 of the through hole radius.In the inside of radiator, heat radiating fin is set
Piece, increased the area of dissipation in through hole in radiator, improve the radiating effect of conductive heat transfer.
And for example, radiating fin is identical with the material of radiating shell, and and for example, radiating fin and radiating shell are formed in one knot
Structure.And for example, radiating fin is obtained with radiating shell Jing aluminium extrudeds processing technique, and preparation method is simple, and is conducive to increasing radiating
The intensity of piece.
And for example, radiating fin includes each component of following mass parts：Aluminum：92.1 parts～94.5 parts, silicon：0.2 part～1.5
Part, copper：0.05 part～1.2 parts, manganese：0.3 part～1.8 parts, titanium：0.03 part～0.3 part, ferrum：0～1.0 part, chromium：0.03 part～
0.3 part, zinc：0.2 part～1.0 parts, zirconium：0.03 part～0.3 part.Above-mentioned radiating fin is mainly made of aluminium, and not only can make to dissipate
Hot fin lighter weight, heat conductivility preferably, and the addition of silicon, copper, manganese, titanium, ferrum to have can radiating fin larger
Intensity, additionally, the addition of chromium, zinc, zirconium can improve the fatigue-resistance characteristics of radiating fin, makes radiating fin have good mechanical property
Energy.
And for example, the radiating fin in an embodiment of the present invention, it includes each component of following mass parts：Graphene：20
Part～30 parts, carbon fiber：20 parts～30 parts, polyamide：40 parts～60 parts, water-soluble silicate：10 parts～20 parts, six sides
Boron nitride：1 part～8 parts, BMI：2 parts～5 parts, silane coupler：0.5 part～2 parts, antioxidant：0.25 part～
1 part.And for example, the antioxidant is one or more in double Lauryl Alcohol esters, double ten four carbon alcohols esters or double octadecanol esters.
And for example, the water-soluble silicate is Lithium metasilicate or sodium silicate.
Above-mentioned Graphene, carbon fiber mix with polyamide, under the high temperature conditions by the copolyreaction of polyamide certain
Ordered arrangement in degree, forms heat dissipation channel, gives heat and forms microchannel absorption air convection current, produces stronger radiant heat transfer
Effect, such that it is able to improve the heat dispersion of radiating fin, and the more fluffy sky of heat radiation fin structure for being formed, quality is lighter.Additionally,
Due to the addition of carbon fiber, its surface protection performance and mechanical performance are more preferable, for example, more antioxidation, more resistant to soda acid and more resistant to corruption
Erosion.
Preferably, the radiating fin includes each component of following mass parts：Graphene：30 parts～35 parts, carbon fiber：25
Part～30 parts, polyamide：45 parts～50 parts, water-soluble silicate：15 parts～20 parts, hexagonal boron nitride：4 parts～6 parts, span comes
Acid imide：3 parts～4 parts, silane coupler：1 part～1.5 parts, antioxidant：0.5 part～1 part.
Preferably, the radiating fin includes each component of following mass parts：35 parts of Graphene, 28 parts of carbon fiber, polyamides
45 parts of amine, 18 parts of water-soluble silicate, 5 parts of hexagonal boron nitride, 3.5 parts of BMI, 1.8 parts of silane coupler, antioxygen
0.7 part of agent.
For example, the particle diameter of Graphene is 10-50 μm, and the particle diameter of carbon fiber is 20-30 μm, and the particle diameter of hexagonal boron nitride is 1-
10μm。
Above-mentioned radiating fin can be delayed or be suppressed the carrying out of polymer oxidizing process by addition antioxidant, so as to hinder
Only Polyamide Engineering Plastic aging and extend its service life, by adding silane coupler and double succinimides, can be with
Improve the compatibility of other components and polyamide so as to preferable mechanical property and mobility, enter polyamide and obtain good
Surface quality well and machinery, heat and electrical property, by adding hexagonal boron nitride the heat conductivity of radiating fin can be improved, and made
Radiating fin has higher heat loss through radiation ability.
Above-mentioned radiating fin, by adding graphene film and carbon fiber in polyamide, using graphene film and carbon fiber
It is little with density, heat conductivity and fine heat radiation property, and polyamide material has low cost, quality little and machine-shaping property is good etc.
Advantage, compared with conventional aluminum alloy heat-sink fin, its quality can be greatly reduced, and low cost, machine-shaping are easy, while it also has
There are larger perfect heat-dissipating, toughness, high temperature resistant and the performance such as corrosion-resistant.
Due to the radiating spacing between adjacent heat radiation fin it is larger when, the quantity of radiating fin can be caused not enough, affect
Radiating effect, and the spacing between adjacent heat radiation fin it is less when, on the one hand, can increase the use of material, increase cost of manufacture,
And the weight of the whole radiator of increase, on the other hand, less spacing makes to form too little for the passage of air flow, is easily caused
Heat is hoarded, and radiating effect is undesirable, in order to solve how preferably to reach the technical problem of radiating effect, for example, adjacent institute
It is 2～10 millimeters to state the spacing between radiating fin, and and for example, the spacing between the adjacent radiating fin is 4～8 millimeters, and
Such as, the spacing between the adjacent radiating fin is 5～6 millimeters, and and for example, the thickness of the radiating fin is 5～20 millimeters, and
Such as, the thickness of the radiating fin is 10～15 millimeters, as such, it is possible to make radiator reach preferably heat dispersion.Preferably,
The width of radiating fin is gradually reduced by top to bottom, and and for example, the formation of the radiating fin is in inverted trapezoidal, so, can
To further speed up the radiating rate of radiating fin.
Further, the both side surface of the radiating fin is equipped with corrugated radiation tooth, and for example, the radiation tooth edge
The width of the radiating fin extends, and and for example, the thickness of radiation tooth is dissipated less than the thickness of the radiating fin by arranging
Hot tooth, can increase area of dissipation, so as to improve radiating efficiency.
And for example, multiple fins and fenestra are interval with the radiating fin, specifically, the fenestra is in radiating fin
Open-type indentation is carved at upper interval, is retained and is not made indentation on one side, is formed on the radiating fin by punching press；The fin is
What the material retained in the fenestra on the radiating fin was formed；Fin described in vertical direction and the radiating fin it
Between shape acute angle or right angle.By opening up fenestra on heat radiating fin blade surface, and retain the area of fenestra, in radiating fin
Fin is formed on surface, fin has in vertical direction certain angle between radiating fin, and fin is to air flow side
Increase area of dissipation to extending；The presence of fin strengthens air in vertical direction, the disorderly degree of horizontal and vertical flowing,
The laminar sublayer of destruction lamina air flow flowing, reduces heat transfer resistance, improves the coefficient of heat transfer, obtains more preferable heat transfer effect.
In order to further increase the contact area of radiating shell and radiating fin, to improve the radiating efficiency of radiator, example
Such as, the radiating fin is arcuate structure, i.e. the radiating fin is arc with the contact surface of the radiator, and for example, described
Radiating fin is S type structures, i.e. the radiating fin is S types with the contact surface of the radiator, as such, it is possible to increase radiating
Fin and the contact area of radiating shell, improve the heat dispersion of radiator.
Fig. 4 is referred to, the depression of first surface 111 of radiating shell 110 forms groove 117, and lid 120 is placed in described recessed
In groove 117.
Further, for the ease of the assembling of lid and radiating shell, for example, the lid is fixedly installed on by screwing togather
The radiating shell, and for example, the inwall of the lid is provided with female thread, and the correspondence position of the radiating shell is provided with external screw thread,
The female thread is connected with the external screw thread, and for example, is connected by clamping sealing between the lid and the radiating shell
Connect, as such, it is possible to facilitate the assembling of lid and radiating shell.
In order to preferably solve the sealing problem between lid and radiating shell, prevent radiator liquid from leaking, example
Such as, the lid is provided with sealant layer with the seam of the radiating shell.By arrange sealant layer, can improve lid with
Sealing between radiating shell, prevents radiator liquid from leaking.
For example, the lid in an embodiment of the present invention, it includes each component of following mass parts：Aluminum：62.4 part～
90.1 parts, yttrium：11.3 parts～14.8 parts, scandium：2.7 parts～13.5 parts, titanium：0.5 part～1.2 parts, molybdenum：0.5 part～1.5 parts, vanadium：
0.3 part～1.0 parts, strontium：0.1 part～1.2 parts, beryllium：0.6 part～2.1 parts, above-mentioned lid is mainly made of aluminium, and not only can make
The lighter weight of lid, heat conductivility is preferable, and, yttrium, scandium, titanium, molybdenum, vanadium, strontium, beryllium etc. belong to transition metal, resistance to height
Temperature and thermal resistance is little, thermal radiation capability is high, and the heat of absorption can rapidly be radiated and distributed.
Preferably, the thickness of the lid is 3～8 millimeters, and further, the thickness of the lid is 2～6 millimeters, this
The heat that LED is produced can be quickly transferred to radiating shell, and the two kinds of heat dissipation channels of gas-liquid for passing through radiating shell by sample, lid
Scatter and disappear into outside air, while preferable mechanical strength can also be kept, it is to avoid external force collision causes the deformation of lid.
In the present embodiment, the lid is annular, i.e. the lid is in the through hole corresponding position of the radiating shell
For hollow-core construction, so, the quality of lid not only can be mitigated, reduce production cost, meanwhile, radiating shell through hole can be accelerated
Place's gas velocity of liquid assets, so as to increase the convection heat transfer' heat-transfer by convection efficiency of gas.
In order to further improve the heat transmission ability of lid, for example, the lid is provided with some heat pipes, described to lead
Heat pipe is inserted in the radiator liquid, by arranging heat pipe, the heat on lid can be quickly transferred to into radiator liquid
In, and then absorbed by radiator liquid, as such, it is possible to accelerate the transmission speed of heat on lid, improve radiating efficiency.
Further, the lid and the heat pipe are formed in one structure, and processing technique is simple, and cost is relatively low.
It is to improve heat conduction efficiency, for example, described to lead in order to further increase the contact area of heat pipe and radiator liquid
Heat pipe is helicoidal structure, and and for example, the heat pipe is wavy shaped configuration, as such, it is possible to increase contact of the heat pipe with liquid
Area, so as to increase heat conduction efficiency.
It is appreciated that because heat pipe is inserted in radiator liquid, therefore heat pipe needs have preferable anticorrosive energy
Power.For example, the heat pipe in an embodiment of the present invention, it includes each component of following mass parts：Aluminum：93.4 parts～95.8
Part, silicon：0.05 part～0.15 part, manganese：0.2 part～0.5 part, magnesium：1.0 parts～3.0 parts, nickel：3.0 parts～6.0 parts, titanium：0.02
Part～0.06 part, zirconium：0.05 part～0.15 part, scandium：0.1 part～0.3 part.Due to adding nickel, nickle atom can reduce crystal boundary and
Transgranular potential difference, this improves the stress corrosion resistant ability of heat carrier, meanwhile, also improve intensity, the plasticity of heat carrier
With repetition loading drag.Scandium (Sc) forms precipitated phase Al in aluminium alloy3Sc, it has face-centred cubic structure, lattice paprmeter and α
(Al) matrix is close to, and stability is high, only not strong age-hardening effect, and with high heat stability.Therefore, scandium
Add, alloy structure can be made fined, and forming core core is provided for precipitated phase, the precipitation for making precipitated phase is gradually expanded by crystal boundary
α (Al) matrix is opened up, more disperse is uniform, reduces crystal boundary and transgranular difference in Electrode Potential, homogeneous corrosion is formed, so as to improve
The corrosion resisting property of alloy.Due to adding zirconium (Zr), and Zr and Al combine to form Al3Zr intermetallic compounds, this metal
Between compound have two kinds of structures and form：The Al directly separated out from melt3Zr is tetragonal, can notable refining alloy casting
State crystal grain；Another kind is the spheroidal particle separated out during ingot homogenization, is recrystallized with strong inhibition hot procedure
Effect；And the sensitivity of alloy quenching containing Zr is not strong, the quenching degree of alloy is improved, therefore, the addition of zirconium is effectively improved
The intensity of alloy, fracture toughness and anti-stress corrosion performance.
Above-mentioned heat pipe, because it includes aluminum, nickel, magnesium, silicon, manganese, titanium, zirconium, scandium, these elements interact so that its
Not only there is good heat conductivity, the big advantage of specific surface area, while the characteristics of having anticorrosive, high intensity.
In order to further improve the resistance to corrosion of heat pipe, for example, the periphery of the heat pipe is provided with etch resistant layer, and
Such as, etch resistant layer is identical with the composition of the protective layer, and and for example, etch resistant layer includes each component of following mass parts：Acrylic acid
Resin：25 parts～30 parts, nitrocotton resin：25 parts -30 parts, butyl acetate：6 parts～8 parts, n-butyl alcohol：6 parts～8 parts, ethylene glycol
Ether：3 parts～4 parts, levelling agent：1 part～1.5 parts, defoamer：1 part～1.5 parts, 20 parts～30 parts of inorganic filler, wherein inorganic
Filler includes aluminium nitride, boron nitride, aluminium oxide, carborundum or copper powder, it is preferred that the particle diameter of inorganic filler is 0.5～3 micron.
The addition of nitrocotton resin, not only makes it have fast drying, and with preferable hardness and brightness smooth weatherability compared with
Good, the addition of inorganic filler can make it have preferable heat conductivility.Preferably, the thickness of etch resistant layer is 10～20 micro-
Rice, as such, it is possible to make it have preferable resistance to corrosion, while and higher heat conductivity can be kept.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that for one of ordinary skill in the art comes
Say, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of household lighting fixtures, it is characterised in that include：Radiator, light source assembly, base and lampshade, the lampshade
Located at the base and surround closing space, the radiator and the light source assembly are placed in the closing space, described to dissipate
Hot device includes radiating shell, and the radiating shell offers through hole, and the light source assembly is sheathed on the periphery of the radiating shell,
Radiating fin is provided with the hole wall of the through hole, the radiating fin is radially extended along the hole wall of the through hole, it is adjacent described
Spacing between radiating fin is 5～6 millimeters, and width being gradually reduced by top to bottom of the radiating fin is described to dissipate
Multiple fins and fenestra are interval with hot fin, the fenestra is that open-type indentation is carved at interval on radiating fin, retains one
Side does not make indentation, is formed on the radiating fin by punching press；The fin is the window on the radiating fin
What the material retained in hole was formed；Acute angle or right angle are formed between fin described in vertical direction and the radiating fin.
2. household lighting fixtures according to claim 1, it is characterised in that the light source assembly includes lamp plate and located at institute
The LED lamp bead of lamp plate is stated, the lamp plate is sheathed on the periphery of the radiating shell.
3. household lighting fixtures according to claim 2, it is characterised in that the radiating shell is cylindrical structure, institute
Lamp plate is stated for cylindrical structure.
4. household lighting fixtures according to claim 1, it is characterised in that the radiating shell away from the base one
Side offers and be filled with blind hole, the blind hole radiator liquid.
5. household lighting fixtures according to claim 4, it is characterised in that the blind hole is mutually communicated that to form annular recessed
Groove.
6. household lighting fixtures according to claim 5, it is characterised in that the radiator also includes lid, the lid
Body is fixedly installed on the radiating shell, and forms closed area with the blind hole.
7. household lighting fixtures according to claim 6, it is characterised in that the lid is provided with some heat pipes, described
Heat pipe is turned on the radiator liquid.
8. household lighting fixtures according to claim 7, it is characterised in that the heat pipe has helicoidal structure.
9. household lighting fixtures according to claim 7, it is characterised in that the heat pipe has wavy shaped configuration.
10. household lighting fixtures according to claim 7, it is characterised in that the heat pipe is integrated with the lid
Molding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342717.9A CN104948955B (en) | 2015-06-18 | 2015-06-18 | Household illumination lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342717.9A CN104948955B (en) | 2015-06-18 | 2015-06-18 | Household illumination lamp |
Publications (2)
| Publication Number | Publication Date |
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| CN104948955A CN104948955A (en) | 2015-09-30 |
| CN104948955B true CN104948955B (en) | 2017-04-12 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20080099352A (en) * | 2003-12-11 | 2008-11-12 | 필립스 솔리드-스테이트 라이팅 솔루션스, 인크. | Thermal management methods and apparatus for lighting devices |
| CN201539837U (en) * | 2009-10-21 | 2010-08-04 | 周哲 | Radiating device of light emitting diode lamp |
| CN201764307U (en) * | 2010-08-05 | 2011-03-16 | 庄胜义 | LED bulb |
| CN203023953U (en) * | 2012-12-18 | 2013-06-26 | 重庆三弓科技发展有限公司 | Strip-type light-emitting diode (LED) street lamp |
| CN203907281U (en) * | 2014-05-14 | 2014-10-29 | 广东德豪润达电气股份有限公司 | LED (light emitting diode) lamp |
| CN104235658A (en) * | 2014-10-17 | 2014-12-24 | 上海新凯元照明科技有限公司 | Columnar LED bulb |
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