CN104879688B - Domestic lighting light fixture - Google Patents

Domestic lighting light fixture Download PDF

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Publication number
CN104879688B
CN104879688B CN201510318906.2A CN201510318906A CN104879688B CN 104879688 B CN104879688 B CN 104879688B CN 201510318906 A CN201510318906 A CN 201510318906A CN 104879688 B CN104879688 B CN 104879688B
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heat
radiating
light fixture
lighting light
domestic lighting
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CN104879688A (en
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叶伟炳
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Dongguan Wenyu Industrial Co Ltd
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Dongguan Wenyu Industrial Co Ltd
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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

Abstract

A kind of domestic lighting light fixture, including:Lamp holder, enclosing cover, lampshade, radiating subassembly, radiating piece, LED, insulating cylinder and circuit unit.Radiating subassembly includes heat sink and heat-dissipating cylinder, and the two ends of heat sink are connected with lamp holder and enclosing cover respectively, and heat sink has first side and second side.Radiating piece includes supporting plate and two radiating wing plates.LED is arranged at the second side of heat sink.Insulating cylinder is placed in heat-dissipating cylinder, and the madial wall of insulating cylinder is provided with some support columns.Circuit unit is placed in insulating cylinder, and the end of circuit unit and support column is supported.Above-mentioned domestic lighting light fixture is installed on radiating subassembly, radiating subassembly and radiating piece collaboration radiating by setting the radiating subassembly and radiating piece that mutually support, and by LED, can be greatly enhanced domestic lighting light fixture heat dispersion.In addition, above-mentioned domestic lighting light fixture also has the advantages that security performance is higher.

Description

Domestic lighting light fixture
Technical field
The present invention relates to lighting technical field, more particularly to a kind of domestic lighting light fixture.
Background technology
LED (Light Emitting Diode, light emitting diode) can directly and efficiently convert electrical energy into visible ray, and And possess service life up to tens thousand of hours~100,000 hour.LED is used to be referred to as LED lamp for the light fixture of light source, it is with matter It is excellent, durable, energy-conservation the advantages of and be referred to as the most frequently used illuminator.As LED lamp technology is developed rapidly in recent years, LED Tool product replaces original fluorescent lighting fixture substantially.
LED basic structure is P-N knots of a semiconductor, when electric current flows through LED element, and the temperature of P-N knots will Rise, and the temperature in P-N interfaces is referred to as LED junction temperature, is typically due to the size that element chip is respectively provided with very little, therefore, also The temperature of LED chip is referred to as the junction temperature of LED chip.
At present, the drawback that LED domestic lightings light fixture itself is present is that LED domestic lighting light fixture light efficiencies are by LED families The influence of the junction temperature of illuminator is larger, and higher junction temperature of chip will cause light efficiency to be decreased obviously, and influence whether LED house The service life of front yard illuminator.Because LED is when luminous, the temperature of its own can be raised constantly, in lasting gaffer In work, if the heat that LED is produced can not be exhaled in time, it will cause the damage of LED, the use of LED is influenceed Life-span.Therefore, the heat dissipation problem for solving LED is most important for the performance for lifting LED.
However, still there is the problem of heat dispersion is poor in existing LED domestic lightings light fixture, in particular by larger work( When the LED of rate is as light source, its heating problem is obvious all the more.In addition, still there is safety in existing LED domestic lightings light fixture The problem of poor-performing.
The content of the invention
Based on this, it is necessary to provide a kind of good heat dispersion performance and the higher domestic lighting light fixture of security performance.
A kind of domestic lighting light fixture, including:
Lamp holder,
Enclosing cover,
Lampshade, the lampshade is tubular construction, and the two ends of the lampshade are connected with the lamp holder and the enclosing cover respectively, institute The madial wall for stating lampshade offers chute;
Radiating subassembly, the radiating subassembly includes heat sink and heat-dissipating cylinder, the two ends of the heat sink respectively with the lamp Head and enclosing cover connection, the heat sink have first side and second side, and the heat-dissipating cylinder is arranged at first side Face, the heat-dissipating cylinder is hollow-core construction, and the side edge of the heat sink is slideably positioned in the chute;
Radiating piece, the radiating piece include support plate and two radiating wing plates, two it is described radiating wing plates respectively with it is described The two ends connection of plate is supported, the plate that supports is supported with the heat-dissipating cylinder, described to support one side of the plate away from the heat-dissipating cylinder Supported with the lampshade;
LED, the LED is arranged at the second side of the heat sink;
Insulating cylinder, the insulating cylinder is placed in the heat-dissipating cylinder, and the madial wall of the insulating cylinder is provided with some supports Post;
Circuit unit, the circuit unit is placed in the insulating cylinder, the end of the circuit unit and the support column Portion is supported.
In one of the embodiments, the support column is cylindrical-shaped structure.
In one of the embodiments, the support column and the end that the circuit unit is supported are hemispherical dome structure.
In one of the embodiments, the material of the support column is insulating materials.
In one of the embodiments, the material of the support column is rubber.
In one of the embodiments, some support columns are set.
In one of the embodiments, some support columns are uniformly distributed in the madial wall of the heat-dissipating cylinder.
LED is installed on scattered by above-mentioned domestic lighting light fixture by setting the radiating subassembly and radiating piece that mutually support Hot component, radiating subassembly and radiating piece collaboration radiating, can be greatly enhanced domestic lighting light fixture heat dispersion.In addition, above-mentioned Domestic lighting light fixture also has the advantages that security performance is higher.
Brief description of the drawings
Fig. 1 is the structural representation of the domestic lighting light fixture of an embodiment of the present invention;
Fig. 2 is the structural representation of another angle of the domestic lighting light fixture shown in Fig. 1;
Fig. 3 is the structural representation of the domestic lighting light fixture of another embodiment of the invention;
Fig. 4 is the structural representation of the domestic lighting light fixture of another embodiment of the invention;
Fig. 5 is the structural representation of the domestic lighting light fixture of another embodiment of the invention;
Fig. 6 is the structural representation of the domestic lighting light fixture of another embodiment of the invention.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing Give the better embodiment of the present invention.But, the present invention can be realized in many different forms, however it is not limited to herein Described embodiment.On the contrary, the purpose for providing these embodiments is to make to understand more the disclosure Plus it is thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ", For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " including one or more The arbitrary and all combination of related Listed Items.
Fig. 1 and Fig. 2 is referred to, domestic lighting light fixture 10 includes:Lamp holder 100, enclosing cover 200, lampshade 300, radiating subassembly 400th, radiating piece 500, LED 600, insulating cylinder 700 and circuit unit 800.Lamp holder 100, enclosing cover 200 are arranged at lampshade 300 Two ends, radiating subassembly 400, radiating piece 500, LED 600, insulating cylinder 700 and circuit unit 800 are placed in lampshade 300.
Referring to Fig. 1, the two ends of lampshade 300 are connected with lamp holder 100 and enclosing cover 200 respectively, i.e., one end of described lampshade with The lamp holder connection, the other end is connected with the enclosing cover.Also referring to Fig. 2, lampshade 300 is tubular construction, lampshade 300 it is interior Side wall offers chute 310.For example, the lamp holder is used for lamp socket mounted externally;And for example, the lamp holder is provided with slotting Pin, the contact pin is used to electrically connect with outside lamp socket, to provide power supply to the normal work of the LED.
Referring to Fig. 2, radiating subassembly 400 includes heat sink 410 and heat-dissipating cylinder 420, the two ends of heat sink 410 respectively with lamp First 100 and enclosing cover 200 connect, i.e., one end of described heat sink is connected with the lamp holder, and the other end is connected with the enclosing cover.Radiating Plate 410 has first side 411 and second side 412, and heat-dissipating cylinder 420 is arranged at first side 411.For example, heat-dissipating cylinder 420 is Hollow-core construction;And for example, heat-dissipating cylinder 420 is hollow square tube shape structure;And for example, lampshade 300 is hollow square tube shape structure;It is preferred that, As shown in Fig. 2 its edge has arc angle.
Referring to Fig. 2, the side edge of heat sink 410 is slideably positioned in chute 310, when needing to pacify radiating subassembly 400 When being attached in lampshade 300, by the side edge of heat sink 410 along chute 310 be slipped into lampshade 300 when, in this way, can To be greatly enhanced the convenience of installation operation, and radiating subassembly 400 can be made more to be stably attached in lampshade 300.
In order to further improve the convenience of installation operation, and radiating subassembly is set more to be stably attached in lampshade, example Such as, the lampshade is square tubular structure, referring to Fig. 2, two relative madial walls of the lampshade offer two institutes respectively Chute is stated, two side edges of the heat sink are slideably positioned in two chutes respectively, in this way, can further improve The convenience of installation operation, and radiating subassembly is more stably attached in lampshade.
Referring to Fig. 2, radiating piece 500 includes supporting plate 510 and two radiating wing plates 520, two radiating wing plates 520 are distinguished It is connected with the two ends for supporting plate 510.Support plate 510 to support with heat-dissipating cylinder 420, in this way, the heat that heat-dissipating cylinder 420 absorbs can be fast Speed and it is transferred to supports plate 510 in time, afterwards, supports the heat of the absorption of plate 510 again by radiating wing plate 520 so as to diffusing to Whole radiating piece 500, so as to effectively improve cooling surface area.
Supported referring to Fig. 2, supporting one side of the plate 510 away from heat-dissipating cylinder 420 with lampshade 300, radiating wing plate 520 and lamp Cover 300 is supported.In this way, radiating piece 500 can be played to heat-dissipating cylinder 420 preferably fixes supporting role.
Referring to Fig. 2, LED 600 is arranged at the second side 412 of heat sink 410.It is luminous when LED 600 works to produce Heat can be transferred to heat sink 410, afterwards, then heat-dissipating cylinder 420 is transferred to by heat sink 410, finally, then by heat-dissipating cylinder 420 are transferred to radiating piece 500, during heat transfer, and heat sink 410, heat-dissipating cylinder 420 and radiating piece 500 can be to skies Dissipated heat in gas medium.So, heat dissipation path can be optimized, and cooling surface area can be increased.
Referring to Fig. 2, insulating cylinder 700 is placed in heat-dissipating cylinder 420, circuit unit 800 is placed in insulating cylinder 700, this Sample, can be such that circuit unit 800 is placed in insulating cylinder 700, to avoid circuit unit 800 from being contacted with heat-dissipating cylinder 420, leak Electric the problem of, so as to improve the security performance of the domestic lighting light fixture.
In order to further improve the security performance of domestic lighting light fixture, for example, referring to Fig. 3, the madial wall of insulating cylinder 700 Some support columns 710 are provided with, the end of circuit unit 800 and support column 710 is supported;And for example, the support column is cylindric Structure;And for example, the support column and the end that the circuit unit is supported are hemispherical dome structure;And for example, the material of the support column Matter is insulating materials;And for example, the material of the support column is rubber;And for example, some support columns are set;And for example, some branch Dagger is uniformly distributed in the madial wall of the heat-dissipating cylinder, and the fixed circuit group can be preferably supported by the support column Part, and then can further improve the security performance of domestic lighting light fixture.
In order to further make the overall structure of the domestic lighting light fixture more firm, for example, referring to Fig. 2, heat-dissipating cylinder 420 are provided with two projections 421 away from first side 411, support plate 510 and protrude to form support division 511, support division to side 511 and heat-dissipating cylinder 420 support and between two projections 421;And for example, between being provided between support division 511 and projection 421 Every;And for example, filling block 422 is also set up, filling block 422 is supported with the lateral wall of insulating cylinder 700 and the madial wall of heat-dissipating cylinder 420 respectively Hold;And for example, some filling blocks are set;And for example, some filling blocks be uniformly distributed in the insulating cylinder lateral wall and Between the madial wall of the heat-dissipating cylinder;And for example, the material of the filling block is insulating materials;And for example, the material of the filling block For rubber, in this way, can further make the overall structure of the domestic lighting light fixture more firm.
For the simple and convenient property of the installation operation that improves the domestic lighting light fixture, for example, referring to Fig. 2, lampshade 300 Madial wall be additionally provided with elastic buckles 330, and offer stopper slot 340, chute 310 is located at elastic buckles 330 and stopper slot 340 Between, neck 411a and positive stop strip 412a is respectively arranged with the first side 411 and second side 412 of heat sink 410, it is spacing Bar 412a is slideably positioned in stopper slot 340, and the part of elastic buckles 330 is embedded in neck 411a, so, the elasticity of lampshade 300 Button 330 and stopper slot 340 can play spacing guide effect to the neck 411a and positive stop strip 412a of heat sink 410 respectively, from And the simple and convenient property of the installation operation of the domestic lighting light fixture can be improved.
For the simple and convenient property of the installation operation that further improves the domestic lighting light fixture, for example, the chute is Strip structure;And for example, the stopper slot is strip structure;And for example, the elastic buckles have semicircular cross section;And for example, institute State elastic buckles and be provided with projection, the projection is embedded at the neck;And for example, some projections are set;And for example, it is some described Bulge clearance is distributed in the elastic buckles, in this way, the simple of the installation operation of the domestic lighting light fixture can further be improved Convenience.
In order to further improve the heat dispersion of the domestic lighting light fixture, for example, referring to Fig. 4, radiating wing plate 520 with The madial wall of lampshade 300 is supported, and radiating wing plate 520 is additionally provided with fin 521, and fin 521 is through lampshade 300 and partly reveals It is placed in outside lampshade 300;And for example, the fin is the flaky texture with rectangle plane;And for example, the fin be with The flaky texture of rectangle cambered surface;And for example, some fin are set;And for example, some fin are spaced apart in institute State radiating wing plate;And for example, some fin are uniformly distributed in the radiating wing plate, in this way, the radiating wing plate is by setting Put the fin, can effectively increase cooling surface area, and stretched out by the fin outside the lampshade, be conducive to by Heat transfer in the lampshade is into outside air dielectric, so as to further improve dissipating for the domestic lighting light fixture Hot property.
In order to further improve the heat dispersion of the domestic lighting light fixture, for example, referring to Fig. 6, lampshade 300 is offered Some heat emission holes 350, the madial wall of radiating wing plate 520 and lampshade 300 is supported, and the wing plate 520 that radiates by heat emission hole 350 and External world's connection, please refer to fig. 5, radiating wing plate 520 is provided with some thermal columns 522 being connected with heat-dissipating cylinder 420;And for example, The thermal column is hollow-core construction;And for example, the thermal column is cylindrical structure;And for example, the heat emission hole is circular port;Again Such as, a diameter of 5mm~10mm of the circular port;And for example, a diameter of 8mm~9mm of the circular port;And for example, the circle A diameter of 8.5mm in hole, in this way, the heat dispersion of the domestic lighting light fixture can be improved further.
Above-mentioned domestic lighting light fixture 10 is by setting the radiating subassembly 400 and radiating piece 500 that mutually support, and by LED 600 are installed on radiating subassembly 400, radiating subassembly 400 and the collaboration radiating of radiating piece 500, can be greatly enhanced household lamp Have 10 heat dispersions.
In order to further improve the heat dispersion of the domestic lighting light fixture, for example, the radiating subassembly and the radiating Part is prepared using radiating alloy, and the radiating alloy includes the heat-sink shell, heat-conducting layer and heat dissipating layer for being sequentially overlapped setting; And for example, the heat-sink shell, the heat-conducting layer it is identical with the material of the heat dissipating layer or it is different set;And for example, the LED is set It is placed in the heat-sink shell;And for example, the heat-conductive characteristic of the heat-sink shell, the heat-conducting layer and the heat dissipating layer successively decreases successively, shape Into heat-conductive characteristic gradient, so as to further optimize the heat dissipation path of the radiating alloy, radiating group is drastically increased The heat dispersion of part and the radiating piece, and then the heat dispersion of the domestic lighting light fixture is improved, it so, it is possible to meet hair The radiating requirements of the big domestic lighting light fixture of heat.
For example, the domestic lighting light fixture of an embodiment of the present invention, wherein, the heat-sink shell of the radiating alloy, its Include each component of following mass parts:
90 parts~92 parts of copper, 2 parts~4.5 parts of aluminium, 1 part~2.5 parts of magnesium, 0.5 part~0.8 part of nickel, 0.1 part~0.3 part of iron, 1.5 parts~4.5 parts of vanadium, 0.1 part~0.4 part of manganese, 0.5 part~0.8 part of titanium, 0.5 part~0.8 part of chromium, 0.5 part~0.8 part of vanadium, silicon 0.8 part~15 parts and 0.5 part~2 parts graphenes.
First, the copper (Cu) that above-mentioned heat-sink shell contains 90 parts~92 parts can make heat-sink shell have preferably heat absorption energy. When copper mass parts be 90 parts~92 parts when, the coefficient of heat conduction of heat-sink shell can reach more than 365W/mK, can rapidly by The heat that LED is produced is siphoned away, and then is dispersed in making even heat in the overall structure of heat-sink shell, to prevent heat in LED Accumulated on contact position between lamp and heat-sink shell, cause the generation of hot-spot phenomenon.Moreover, the density of heat-sink shell is less than pure The density of copper, so can effectively mitigate the weight of heat-sink shell, manufacture more conducively be installed, while also greatly reducing into This.Wherein, the definition of the coefficient of heat conduction is:Per unit length, every K, can transmit how many W energy, unit is W/mK, wherein " W " refers to thermal power unit, and " m " represents long measure rice, and " K " is absolute temperature units, the bigger explanation heat absorption capacity of the numerical value Better.In addition, by adding 0.5 part~2 parts of graphene, its coefficient of heat conduction can be effectively improved, and then improve described The heat absorption capacity of heat-sink shell.
Secondly, heat-sink shell contain mass parts be 2 parts~4.5 parts aluminium, 1 part~2.5 parts of magnesium, 0.5 part~0.8 part of nickel, 0.1 part~0.3 part of iron, 1.5 parts~4.5 parts of vanadium, 0.1 part~0.4 part of manganese, 0.5 part~0.8 part of titanium, 0.5 part~ 0.8 part of chromium and 0.5 part~0.8 part of vanadium vanadium.Relative to fine copper material, the ductility of heat-sink shell, toughness, intensity with And resistance to elevated temperatures is improved significantly, and not easy-sintering;So, when LED is installed on heat-sink shell, so that it may to prevent The high temperature that only LED is produced causes to damage to heat-sink shell, also, can also with preferable ductility, toughness and intensity Prevent heat-sink shell from being caused deformation by excessive stresses when installing the LED.Wherein, it is 0.5 that heat-sink shell, which contains mass parts, Part~0.8 part of nickel (Ni), the resistance to elevated temperatures of heat-sink shell can be improved.And for example, heat-sink shell contain mass parts for 1.5 parts~ 4.5 parts of vanadium (V) can suppress heat-sink shell crystal grain and grow up, and more uniform tiny grain structure be obtained, to reduce the crisp of heat-sink shell Property, improve the overall mechanical property of heat-sink shell, to improve toughness and intensity.And for example, heat-sink shell contain mass parts for 0.5 part~ 0.8 part of titanium (Ti), can cause the crystal grain miniaturization of heat-sink shell, to improve the ductility of heat-sink shell.
Finally, heat-sink shell also includes the silicon (Si) that mass parts are 0.8 part~15 parts, when heat-sink shell contains appropriate silicon, On the premise of heat-sink shell heat absorption capacity is not influenceed, the hardness and abrasion resistance of heat-sink shell can be effectively lifted.But, through repeatedly reason Find, when the quality of silicon in heat-sink shell is too many, such as when mass percent is more than more than 15 parts, can make by analysis and experiment evidence The appearance distribution black particles of heat-sink shell, and ductility reduction, are unfavorable for the production shaping of heat-sink shell.
For example, the domestic lighting light fixture of an embodiment of the present invention, wherein, the heat-conducting layer of the radiating alloy, its Include each component of following mass parts:
60 parts~65 parts of copper, 55 parts~60 parts of aluminium, 0.8 part~1.2 parts of magnesium, 0.2 part~0.5 part of manganese, titanium 0.05 part~0.3 Part, 0.05 part~0.1 part of chromium, 0.05 part~0.3 part of vanadium, 0.3 part~0.5 part and 0.1 part~0.3 part graphene of silicon.
First, above-mentioned heat-conducting layer contains the copper and 55 parts~60 parts of aluminium that mass parts are 60 parts~65 parts, can cause The coefficient of heat conduction of heat-conducting layer is maintained at 320W/mK~345W/mK, described in ensureing that heat-conducting layer will can absorb as heat-sink shell The heat that LED is produced is quickly transmitted to heat dissipating layer, and then prevents heat from being accumulated on heat-conducting layer, causes hot-spot phenomenon Produce.Relative to prior art, merely using price costly and the larger copper of quality, above-mentioned heat-conducting layer can both ensure soon The heat transfer of heat-sink shell to heat dissipating layer, is had the advantages that lighter weight, to be easily installed casting, price less expensive by speed again.Together When, relative to prior art, merely using the poor aluminium alloy of radiating effect, above-mentioned heat-conducting layer has more preferably conductivity of heat Energy.
Secondly, by adding 0.1 part~0.3 part of graphene, the heat conductivility of the heat-conducting layer can be greatly enhanced, Preferably by the heat transfer passed over from heat-sink shell to heat dissipating layer.
Finally, heat-conducting layer contains the magnesium, 0.2 part~0.5 part of manganese, 0.05 part~0.3 that mass parts are 0.8 part~1.2 parts The titanium, 0.05 part~0.1 part of chromium, 0.05 part~0.3 part of vanadium and 0.3 part~0.5 part of silicon of part, so as to improve heat-conducting layer Mechanical performance and resistance to elevated temperatures, e.g., mechanical performance includes but is not limited to yield strength, tensile strength.For example, heat-conducting layer Containing the magnesium that mass parts are 0.8 part~1.2 parts, heat-conducting layer yield strength and tensile strength can be assigned to a certain extent, by In radiating alloy in the fabrication process, it is necessary to the overall punching press of heat-sink shell, heat-conducting layer and heat dissipating layer is integrally formed, this is accomplished by Heat dissipating layer has stronger yield strength, to prevent heat dissipating layer from producing irreversible shape by favourable opposition compression in process Become, and then ensure the proper heat reduction performance of radiating alloy.When the relative mass of magnesium is too low, e.g., when mass parts are less than 0.8 part, It can not substantially ensure that the yield strength of heat-conducting layer is met to require, however, when the relative mass of magnesium is too high, such as mass parts are more than At 1.2 parts, the ductility and heat conductivility dramatic decrease of heat-conducting layer can be caused again.For example, it is 0.2 that heat-conducting layer, which contains mass parts, Part~0.8 part of iron, the higher resistance to elevated temperatures of heat-conducting layer and high temperature resistant mechanical performance can be assigned, beneficial to the processing of heat-conducting layer Casting.
For example, the domestic lighting light fixture of an embodiment of the present invention, wherein, the heat dissipating layer of the radiating alloy, its Include each component of following mass parts:
88 parts~93 parts of aluminium, 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 of iron~ 0.8 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, 0.05 part~0.3 part of vanadium and 5 parts~15 Part graphene.
First, above-mentioned heat dissipating layer contains the aluminium that mass parts are 88 parts~93 parts, can cause the coefficient of heat conduction of heat dissipating layer 200W/mK~220W/mK is maintained at, it is remaining when the heat that LED is produced is after heat-sink shell and the radiating of heat conduction layer segment When heat passes to heat dissipating layer by heat-conducting layer again, heat dissipating layer may insure to be dissipated these remaining heats by consistent Walk, and then prevent heat from being accumulated on heat dissipating layer, cause hot-spot phenomenon.
Secondly, by adding 5 parts~15 parts of graphene, the heat dispersion of the heat dissipating layer can be effectively improved, is entered And during the heat being transmitted to from the heat-conducting layer can be rapidly lost to the air dielectric in the external world.
Finally, heat dissipating layer contains the silicon, 0.3 part~0.7 part of magnesium, 0.05 part~0.3 that mass parts are 5.5 parts~10.5 parts The copper, 0.2 part~0.8 part of iron, 0.2 part~0.5 part of manganese, 0.05 part~0.3 part of titanium, 0.05 part~0.1 part of chromium of part And 0.05 part~0.3 part of vanadium, the heat dispersion of heat dissipating layer can be significantly improved.For example, heat dissipating layer contains mass parts is 5.5 parts~10.5 parts of silicon and 0.05 part~0.3 part of copper, it can be ensured that heat dissipating layer has good mechanical properties and lighter weight Advantage, at the same time it can also further improve heat dissipating layer heat-conductive characteristic, further ensure that heat dissipating layer can be by via heat absorption Scatter away after-heat consistent after layer and heat-conducting layer transmission, and then prevent heat from being accumulated on heat dissipating layer, cause office Portion's superheating phenomenon.
In order to further improve the tensile strength of the heat dissipating layer, for example, it is 0.8 part that the heat dissipating layer, which also includes mass parts, ~1.2 parts of lead (Pb), so, can when the lead that heat dissipating layer contains 0.8 part~1.2 parts can improve the tensile strength of heat dissipating layer When striking out radiating fin, i.e. laminated structure to prevent that heat dissipating layer ought be cast, due to being pullled stress by excessive punching press And be broken.
In order to further improve the high temperature oxidation resistance of the heat dissipating layer, for example, the heat dissipating layer also includes mass parts For 0.05 part~0.08 part of niobium (Nb), when the mass parts of niobium are more than 0.05 part, the antioxygen of heat dissipating layer can be greatly enhanced Change performance, it will be understood that heat dissipating layer is as part maximum with contacting external air area in LED street lamp radiator, and it is resisted High temperature oxidation resistance requires higher.However, when the mass parts of niobium are more than 0.08 part, the magnetic of heat dissipating layer can be caused drastically to increase Plus, influence can be produced on the miscellaneous part in domestic lighting light fixture.
In order to further improve the heat dispersion of the heat dissipating layer, for example, heat dissipating layer also include mass parts be 0.05 part~ 0.2 part of germanium (Ge), when the mass parts of germanium are more than 0.05 part, can play preferable effect to the raising of the heat dispersion of heat dissipating layer Really, however, when the quality accounting of germanium is excessive, such as when the mass parts of germanium are more than 0.2 part, the brittleness of heat dissipating layer can be made again to be increased.
Above-mentioned radiating alloy sets the heat-sink shell, the heat-conducting layer and the heat dissipating layer by being sequentially overlapped, and described The heat-conductive characteristic of heat-sink shell, the heat-conducting layer and the heat dissipating layer successively decreases successively, forms heat-conductive characteristic gradient, compared to For fine copper material, on the premise of heat dispersion is ensured, weight is greatly lowered;The aluminium alloy largely existed compared in the market For, heat dispersion is greatly enhanced.
It should be noted that the other embodiment of the present invention also includes, the technical characteristic in the various embodiments described above is mutually tied Close what is formed, the domestic lighting light fixture that can implement.
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 it describes more specific and detailed, but Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for the ordinary skill people of this area For member, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the present invention's Protection domain.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (5)

1. a kind of domestic lighting light fixture, including:Lamp holder, enclosing cover, lampshade, radiating subassembly, LED and circuit unit, the radiating Component includes heat sink and heat-dissipating cylinder, and the two ends of the heat sink are connected with the lamp holder and the enclosing cover respectively, the radiating Plate has first side and second side, and the heat-dissipating cylinder is arranged at the first side, and the heat-dissipating cylinder is hollow-core construction, institute State the second side that LED is arranged at the heat sink, the lampshade is tubular construction, the two ends of the lampshade respectively with The lamp holder and enclosing cover connection, it is characterised in that also include:Radiating piece and insulating cylinder;
The madial wall of the lampshade offers chute;
The side edge of the heat sink is slideably positioned in the chute;
The radiating piece include support plate and two radiating wing plates, two it is described radiating wing plates respectively with the two ends for supporting plate Connection, the plate that supports is supported with the heat-dissipating cylinder, and the one side of the plate away from the heat-dissipating cylinder that support is supported with the lampshade Hold;
The insulating cylinder is placed in the heat-dissipating cylinder, and the madial wall of the insulating cylinder is provided with some support columns;
The circuit unit is placed in the insulating cylinder, and the end of the circuit unit and the support column is supported.
2. domestic lighting light fixture according to claim 1, it is characterised in that the support column is cylindrical-shaped structure.
3. domestic lighting light fixture according to claim 1, it is characterised in that the support column is supported with the circuit unit End be hemispherical dome structure.
4. domestic lighting light fixture according to claim 1, it is characterised in that the material of the support column is insulating materials.
5. domestic lighting light fixture according to claim 4, it is characterised in that the material of the support column is rubber.
CN201510318906.2A 2015-06-11 2015-06-11 Domestic lighting light fixture Active CN104879688B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3139132U (en) * 2007-07-27 2008-01-31 華興電子工業股▲分▼有限公司 Lamp assembly
CN201739831U (en) * 2010-06-22 2011-02-09 倍碟科技股份有限公司 LED lamp adjustable in illuminating angle
CN202733566U (en) * 2012-08-15 2013-02-13 肇庆市立得电子有限公司 Combined lamp structure
CN204062581U (en) * 2014-08-12 2014-12-31 昆山市美宏灯具厂 A kind of LED lamp tube
CN204084007U (en) * 2014-08-19 2015-01-07 深圳市飞业泰电子有限公司 A kind of Frame lamp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040179357A1 (en) * 2001-09-03 2004-09-16 Heiner Kappe Tubular lamps for fluorescent lighting

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3139132U (en) * 2007-07-27 2008-01-31 華興電子工業股▲分▼有限公司 Lamp assembly
CN201739831U (en) * 2010-06-22 2011-02-09 倍碟科技股份有限公司 LED lamp adjustable in illuminating angle
CN202733566U (en) * 2012-08-15 2013-02-13 肇庆市立得电子有限公司 Combined lamp structure
CN204062581U (en) * 2014-08-12 2014-12-31 昆山市美宏灯具厂 A kind of LED lamp tube
CN204084007U (en) * 2014-08-19 2015-01-07 深圳市飞业泰电子有限公司 A kind of Frame lamp

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