CN104896351A - Cylindrical cooling lamp - Google Patents
Cylindrical cooling lamp Download PDFInfo
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- CN104896351A CN104896351A CN201510320969.1A CN201510320969A CN104896351A CN 104896351 A CN104896351 A CN 104896351A CN 201510320969 A CN201510320969 A CN 201510320969A CN 104896351 A CN104896351 A CN 104896351A
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- lamp
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- 238000001816 cooling Methods 0.000 title abstract description 21
- 238000010276 construction Methods 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 239000010949 copper Substances 0.000 description 15
- 229910052720 vanadium Inorganic materials 0.000 description 15
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium(0) Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 14
- 229910052802 copper Inorganic materials 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 13
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 12
- 239000011777 magnesium Substances 0.000 description 12
- 229910052749 magnesium Inorganic materials 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
- 239000010703 silicon Substances 0.000 description 12
- 229910052710 silicon Inorganic materials 0.000 description 12
- 229910045601 alloy Inorganic materials 0.000 description 11
- 239000000956 alloy Substances 0.000 description 11
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 11
- 239000010936 titanium Substances 0.000 description 11
- -1 1 part ~ 2.5 parts Chemical compound 0.000 description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 10
- 229910052719 titanium Inorganic materials 0.000 description 10
- 239000004411 aluminium Substances 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 9
- 229910052804 chromium Inorganic materials 0.000 description 9
- 239000011651 chromium Substances 0.000 description 9
- 229910021389 graphene Inorganic materials 0.000 description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 9
- 239000011572 manganese Substances 0.000 description 9
- 229910052748 manganese Inorganic materials 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 4
- 229910052732 germanium Inorganic materials 0.000 description 4
- 239000010955 niobium Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229920002456 HOTAIR Polymers 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- ZNAMMSOYKPMPGC-HTOAHKCRSA-N (2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-(2-phenylethylsulfanyl)oxane-3,4,5-triol Chemical group O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1SCCC1=CC=CC=C1 ZNAMMSOYKPMPGC-HTOAHKCRSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003026 anti-oxygenic Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- RYGMFSIKBFXOCR-AHCXROLUSA-N copper-60 Chemical group [60Cu] RYGMFSIKBFXOCR-AHCXROLUSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- VOLSCWDWGMWXGO-UHFFFAOYSA-N cyclobuten-1-yl acetate Chemical group CC(=O)OC1=CCC1 VOLSCWDWGMWXGO-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 1
- 230000001737 promoting Effects 0.000 description 1
- 230000002441 reversible Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
- DIMMBYOINZRKMD-UHFFFAOYSA-N vanadium(5+) Chemical compound [V+5] DIMMBYOINZRKMD-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention relates to a cylindrical cooling lamp. The cylindrical cooling lamp comprises a lamp holder, an outer cover, a lampshade, a cooling cylinder and a plurality of LED lamps, wherein the lamp holder is provided with two contact pins, the lampshade is of a cylindrical structure, the two ends of the lampshade are respectively connected with the lamp holder and the outer cover and the cooling cylinder is of a hollow structure; the two ends of the cooling cylinder are respectively connected with the lamp holder and the outer cover, the cooling cylinder is contained in the lampshade, the inside wall of the cooling cylinder protrudes to the inside of the cooling cylinder and then is provided with a plurality of cooling posts and the plurality of cooling posts are radially distributed on the inside wall of the cooling cylinder; the plurality of LED lamps are arranged on the cooling cylinder, the plurality of LED lamps are arranged on the cooling cylinder through the cylindrical cooling lamp, and the cooling surface area can be effectively improved, so as to greatly improve the cooling capacity of the cylindrical cooling lamp.
Description
Technical field
The present invention relates to lighting technical field, particularly relate to a kind of tubular radiating lamp.
Background technology
Electric energy conversion directly can be become visible ray by LED (Light Emitting Diode, light emitting diode) efficiently, and has the service life reaching tens thousand of hours ~ 100,000 hours.Adopt LED to be that the light fixture of light source is called LED lamp, it is called as the most frequently used lighting with the advantage such as of fine quality, durable, energy-conservation.Along with the develop rapidly in recent years of LED lamp technology, LED lamp product replaces original fluorescent lighting fixture substantially.
The basic structure of LED is P-N knot of a semiconductor, and when electric current flows through LED element, the temperature of P-N knot will rise, and the temperature in P-N interface is called the junction temperature of LED, usually because element chip all has very little size, therefore, also the temperature of LED chip is called the junction temperature of LED chip.
At present, the drawback that LED tubular radiating lamp self exists is, LED tubular radiating lamp light efficiency is comparatively large by the impact of the junction temperature of LED tubular radiating lamp, and higher junction temperature of chip will cause light efficiency to occur obviously declining, and can have influence on the service life of LED tubular radiating lamp.Because LED is when luminescence, the temperature of himself can constantly raise, and in the illumination work continued, if the heat that LED produces can not exhale in time, will cause the damage of LED, affect the service life of LED.Therefore, the heat dissipation problem solving LED is most important for the performance promoting LED.
But still there is the poor problem of heat dispersion in existing LED tubular radiating lamp, when especially adopting the LED of relatively high power as light source, its heating problem is obvious all the more.
Summary of the invention
Based on this, be necessary the tubular radiating lamp that a kind of good heat dispersion performance is provided.
A kind of tubular radiating lamp, comprising:
Lamp holder, described lamp holder has two contact pins;
Enclosing cover,
Lampshade, described lampshade is columnar structured, and the two ends of described lampshade are connected with described lamp holder and described enclosing cover respectively;
Heat-dissipating cylinder, described heat-dissipating cylinder is hollow-core construction, the two ends of described heat-dissipating cylinder are connected with described lamp holder and described enclosing cover respectively, and described heat-dissipating cylinder is placed in described lampshade, the madial wall of described heat-dissipating cylinder protrudes to the inside and arranges some thermal columns, and some described thermal columns radially distribute in the madial wall of described heat-dissipating cylinder;
Some LED, some described LED are arranged at described heat-dissipating cylinder.
Wherein in an embodiment, described thermal column is hollow-core construction.
Wherein in an embodiment, described thermal column cylindrical structure.
Wherein in an embodiment, some described thermal columns are interconnected away from one end of described LED.
Wherein in an embodiment, described thermal column offers some through holes.
Wherein in an embodiment, the diameter of described through hole is 1mm ~ 1.5mm.
Wherein in an embodiment, between two adjacent described LED, be spaced apart 2mm ~ 5mm.
Wherein in an embodiment, between two adjacent described LED, be spaced apart 3mm ~ 4mm.
Wherein in an embodiment, between two adjacent described LED, be spaced apart 3.5mm.
Above-mentioned tubular radiating lamp is by being arranged at heat-dissipating cylinder by some LED, and heat-dissipating cylinder can improve cooling surface area effectively, thus greatly can improve tubular radiating lamp heat dispersion.
Accompanying drawing explanation
Fig. 1 is the structural representation of the tubular radiating lamp of an embodiment of the present invention;
Fig. 2 is the cut-away view of the tubular radiating lamp shown in Fig. 1;
Fig. 3 is the fragmentary sectional view of the tubular radiating lamp shown in Fig. 1;
Fig. 4 is the structural representation of the tubular radiating lamp of another embodiment of the present invention;
Fig. 5 is the structural representation of the tubular radiating lamp of another embodiment of the present invention;
Fig. 6 is the structural representation of the tubular radiating lamp of another embodiment of the present invention;
Fig. 7 is the structural representation of the tubular radiating lamp of another embodiment of the present invention.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Better embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make to disclosure of the present invention understand more thorough comprehensively.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe concrete embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Refer to Fig. 1 and Fig. 2, tubular radiating lamp 10 comprises: lamp holder 100, enclosing cover 200, lampshade 300, heat-dissipating cylinder 400 and some LED 500, lamp holder 100, enclosing cover 200 are arranged at the two ends of lampshade 300, and heat-dissipating cylinder 400 and some LED 500 are all placed in lampshade 300.
Refer to Fig. 1, the two ends of lampshade 300 are connected with lamp holder 100 and enclosing cover 200 respectively.See also Fig. 4, lampshade 300 is columnar structured, and such as, described lamp holder is for lamp socket mounted externally; And for example, described lamp holder is provided with contact pin, and described contact pin is used for being electrically connected with the lamp socket of outside, provides power supply to give the normal work of described LED.
Refer to Fig. 4, heat-dissipating cylinder 400 is hollow-core construction, and the two ends of heat-dissipating cylinder 400 are connected 200 with lamp holder 100 and enclosing cover respectively, and heat-dissipating cylinder 400 is placed in lampshade 300.Such as, described heat-dissipating cylinder is hollow cylindrical structure.
Refer to Fig. 4, some LED 500 are arranged at the outer surface of heat-dissipating cylinder 400, and when heat-dissipating cylinder 400 is for working to LED 500, the luminous heat produced carries out thermolysis.
In order to improve the heat dispersion of described tubular radiating lamp further, such as, refer to Fig. 3, lampshade 300 offers some air vents 310 be in communication with the outside, and some described air vents 310 are uniformly distributed in lampshade 300; Such as, described air vent is rectangular opening or parallelogram hole.And for example, described air vent is circular port; And for example, the diameter of described air vent is 5mm ~ 10mm; And for example, the diameter of described air vent is 6mm ~ 8mm; And for example, the diameter of described air vent is 7.5mm; And for example, some described air vent circular array are distributed in described lampshade, so, in described lampshade, heat exchange can be carried out by described air vent compared with the comparatively cold air outside hot-air and described lampshade, thus the heat dispersion of described tubular radiating lamp can be improved further.
In order to improve the described brightness of tubular radiating lamp and the uniformity of illuminating effect further, such as, refer to Fig. 4, some LED 500 circular array are arranged at heat-dissipating cylinder 400, and the interval between two adjacent circle LED 500 is equal; And for example, 2mm ~ 5mm is spaced apart between the described LED of adjacent two circle; And for example, 3mm ~ 4mm is spaced apart between the described LED of adjacent two circle; And for example, 3.5mm is spaced apart between the described LED of adjacent two circle; And for example, described LED is LED spotlight; And for example, 2mm ~ 5mm is spaced apart between two adjacent described LED; And for example, 3mm ~ 4mm is spaced apart between two adjacent described LED; And for example, between two adjacent described LED, be spaced apart 3.5mm, so, the described brightness of tubular radiating lamp and the uniformity of illuminating effect can be improved further.
In order to improve the heat dispersion of described tubular radiating lamp further, such as, refer to Fig. 5, the madial wall of heat-dissipating cylinder 400 protrudes to the inside and arranges some thermal columns 410, and some thermal columns 410 radially distribute in the madial wall of heat-dissipating cylinder 400; Such as, as shown in Figure 5, thermal column 410 is coarser than its end away from heat-dissipating cylinder 400 near the end of heat-dissipating cylinder 400; And for example, described thermal column is hollow-core construction; And for example, described thermal column is cylindrical structure; And for example, some described thermal columns are interconnected away from one end of described LED; And for example, described thermal column offers some through holes; And for example, the diameter of described through hole is 1mm ~ 1.5mm, and so, described thermal column can increase cooling surface area, thus can improve the heat dispersion of described tubular radiating lamp further.
In order to improve the heat dispersion of described tubular radiating lamp further, such as, refer to Fig. 6, the position of heat-dissipating cylinder 400 between adjacent two LED 500 offers louvre 420; And for example, described louvre is circular configuration; And for example, the diameter of described louvre is 3mm ~ 6mm; And for example, the diameter of described louvre is 4mm ~ 5mm; And for example, the diameter of described louvre is 4.5mm; And for example, the hole wall of described louvre is also provided with radiating wire, so, in described heat-dissipating cylinder, heat exchange can be carried out by described louvre compared with the comparatively cold air outside hot-air and described heat-dissipating cylinder, thus the heat dispersion of described tubular radiating lamp can be improved further.
In order to improve the utilization rate of the light of described LED further, such as, referring to Fig. 7, also comprising reflecting layer 600, reflecting layer 600 fits in the lateral wall of heat-dissipating cylinder 400, and some LED 500 are arranged at the side of reflecting layer 600 away from heat-dissipating cylinder 400; And for example, the material in described reflecting layer is PETG; And for example, the material in described reflecting layer is ethylene vinyl acetate; And for example, the material in described reflecting layer is PLA; And for example, the thickness in described reflecting layer is 6mm ~ 10mm; And for example, the thickness in described reflecting layer is 8mm ~ 9mm, so, can be reflected the light sent of described LED and/or reflect, thus can improve the utilization rate of the light of described LED further by described reflecting layer.In addition, the mechanical performance in described reflecting layer is also better, e.g., resistance to bending and cutting resistance better.
Above-mentioned tubular radiating lamp 10 is by being arranged at heat-dissipating cylinder 400 by some LED 500, and heat-dissipating cylinder 400 can improve cooling surface area effectively, thus greatly can improve tubular radiating lamp 10 heat dispersion.
In order to improve the heat dispersion of described tubular radiating lamp further, such as, described heat-dissipating cylinder adopts heat radiation reasonable offer to obtain, and described heat radiation alloy comprises the heat-sink shell, heat-conducting layer and the heat dissipating layer that superpose setting successively; And for example, described heat-sink shell, described heat-conducting layer or different setting identical with the material of described heat dissipating layer; And for example, described LED is arranged at described heat-sink shell; And for example, the heat-conductive characteristic of described heat-sink shell, described heat-conducting layer and described heat dissipating layer successively decreases successively, define heat-conductive characteristic gradient, thus optimize the heat dissipation path of described heat radiation alloy further, drastically increase the heat dispersion of heat-dissipating cylinder, and then improve the heat dispersion of described tubular radiating lamp, so, the radiating requirements of the large described tubular radiating lamp of caloric value can be met.
Such as, the tubular radiating lamp of an embodiment of the present invention, wherein, and the described heat-sink shell of described heat radiation alloy, it comprises each component of following mass parts:
Copper 90 parts ~ 92 parts, 2 parts ~ 4.5 parts, aluminium, 1 part ~ 2.5 parts, magnesium, 0.5 part ~ 0.8 part, nickel, iron 0.1 part ~ 0.3 part, vanadium 1.5 parts ~ 4.5 parts, 0.1 part ~ 0.4 part, manganese, titanium 0.5 part ~ 0.8 part, chromium 0.5 part ~ 0.8 part, vanadium 0.5 part ~ 0.8 part, silicon 0.8 part ~ 15 parts and 0.5 part ~ 2 parts Graphenes.
First, what the copper (Cu) that above-mentioned heat-sink shell contains 90 parts ~ 92 parts can make heat-sink shell has the energy that absorbs heat preferably.When the mass parts of copper is 90 parts ~ 92 parts, the coefficient of heat conduction of heat-sink shell can reach more than 365W/mK, rapidly the heat that LED produces can be siphoned away, and then be dispersed in the structure of heat-sink shell entirety with making even heat, to prevent from the contact position of heat between LED and heat-sink shell accumulates, cause the generation of hot-spot phenomenon.And the density of heat-sink shell is less than the density of fine copper, effectively can alleviate the weight of heat-sink shell like this, be more conducive to manufacture is installed, also greatly reduce cost simultaneously.Wherein, the coefficient of heat conduction is defined as: per unit length, every K, can transmit the energy of how many W, unit is W/mK, and wherein " W " refers to thermal power unit, and " m " represents long measure rice, and " K " is absolute temperature units, the larger explanation heat absorption capacity of this numerical value is better.In addition, by adding the Graphene of 0.5 part ~ 2 parts, can effectively improve its coefficient of heat conduction, and then improving the heat absorption capacity of described heat-sink shell.
Secondly, heat-sink shell contain mass parts be 2 parts ~ 4.5 parts aluminium, the nickel of 1 part ~ 2.5 parts, 0.5 part ~ 0.8 part, magnesium, the iron of 0.1 part ~ 0.3 part, the vanadium of 1.5 parts ~ 4.5 parts, the manganese of 0.1 part ~ 0.4 part, the titanium of 0.5 part ~ 0.8 part, the chromium of 0.5 part ~ 0.8 part and the vanadium of vanadium 0.5 part ~ 0.8 part.Relative to fine copper material, the ductility of heat-sink shell, toughness, intensity and resistance to elevated temperatures improve all greatly, and not easy-sintering; Like this, when LED is installed on heat-sink shell, the high temperature that just can prevent LED from producing causes damage to heat-sink shell, and, there is good ductility, toughness and intensity heat-sink shell also can be prevented to be subject to excessive stresses when installing described LED and to cause distortion.Wherein, heat-sink shell contains the nickel (Ni) that mass parts is 0.5 part ~ 0.8 part, can improve the resistance to elevated temperatures of heat-sink shell.And for example, it is that the vanadium (V) of 1.5 parts ~ 4.5 parts can suppress heat-sink shell grain growth that heat-sink shell contains mass parts, obtains more tiny grain structure, to reduce the fragility of heat-sink shell, improve the mechanical property of heat-sink shell entirety, to improve toughness and intensity.And for example, heat-sink shell contains the titanium (Ti) that mass parts is 0.5 part ~ 0.8 part, can make the crystal grain miniaturization of heat-sink shell, to improve the ductility of heat-sink shell.
Finally, heat-sink shell also comprises the silicon (Si) that mass parts is 0.8 part ~ 15 parts, when heat-sink shell contains appropriate silicon, under the prerequisite not affecting heat-sink shell heat absorption capacity, can effectively promote hardness and the abrasion resistance of heat-sink shell.But, through repeatedly theory analysis and the discovery of experiment evidence, when the quality of silicon in heat-sink shell is too many, such as, when mass percent is more than more than 15 parts, the appearance distribution black particles of heat-sink shell can be made, and ductility reduces, and is unfavorable for the producing shaped of heat-sink shell.
Such as, the lighting apparatus of an embodiment of the present invention, wherein, and the described heat-sink shell of described heat radiation alloy, it comprises each component of following mass parts:
Copper 91 parts ~ 91.5 parts, 3 parts ~ 4.5 parts, aluminium, 2 parts ~ 2.5 parts, magnesium, 0.5 part ~ 0.8 part, nickel, iron 0.1 part ~ 0.3 part, vanadium 1.5 parts ~ 4.5 parts, 0.1 part ~ 0.4 part, manganese, titanium 0.5 part ~ 0.8 part, chromium 0.5 part ~ 0.8 part, vanadium 0.5 part ~ 0.8 part, silicon 0.8 part ~ 15 parts and 1.5 parts ~ 2 parts Graphenes.
Such as, the lighting apparatus of an embodiment of the present invention, wherein, and the described heat-sink shell of described heat radiation alloy, it comprises each component of following mass parts:
Copper 91 parts ~ 91.5 parts, 3 parts ~ 4.5 parts, aluminium, 2 parts ~ 2.5 parts, magnesium, 0.5 part ~ 0.7 part, nickel, iron 0.1 part ~ 0.2 part, vanadium 3.5 parts ~ 4.5 parts, 0.1 part ~ 0.3 part, manganese, titanium 0.5 part ~ 0.6 part, chromium 0.5 part ~ 0.6 part, vanadium 0.5 part ~ 0.6 part, silicon 10 parts ~ 15 parts and 1.5 parts ~ 2 parts Graphenes.
Such as, the lighting apparatus of an embodiment of the present invention, wherein, and the described heat-sink shell of described heat radiation alloy, it comprises each component of following mass parts:
Copper 91.5 parts, 4.5 parts, aluminium, 2 parts, magnesium, 0.6 part, nickel, iron 0.2 part, vanadium 3.5 parts, 0.3 part, manganese, titanium 0.5 part, chromium 0.5 part, vanadium 0.5 part, silicon 10 parts and 2 parts of Graphenes.
Such as, the tubular radiating lamp of an embodiment of the present invention, wherein, and the described heat-conducting layer of described heat radiation alloy, it comprises each component of following mass parts:
Copper 60 parts ~ 65 parts, 55 parts ~ 60 parts, aluminium, 0.8 part ~ 1.2 parts, magnesium, 0.2 part ~ 0.5 part, manganese, titanium 0.05 part ~ 0.3 part, chromium 0.05 part ~ 0.1 part, vanadium 0.05 part ~ 0.3 part, silicon 0.3 part ~ 0.5 part and 0.1 part ~ 0.3 part Graphene.
First, it is the copper of 60 parts ~ 65 parts and the aluminium of 55 parts ~ 60 parts that above-mentioned heat-conducting layer contains mass parts, the coefficient of heat conduction of heat-conducting layer can be made to remain on 320W/mK ~ 345W/mK, to ensure that the heat that the described LED absorbed by heat-sink shell produces can be passed to heat dissipating layer by heat-conducting layer rapidly, and then prevent heat from piling up on heat-conducting layer, cause hot-spot phenomenon to produce.Relative to prior art, merely adopt price costly and the larger copper of quality, above-mentioned heat-conducting layer both can ensure fast the heat of heat-sink shell to be passed to heat dissipating layer, there is again lighter weight, be convenient to install cast, advantage that price is cheaper.Meanwhile, relative to prior art, merely adopt the aluminium alloy that radiating effect is poor, above-mentioned heat-conducting layer has better heat transfer property.
Secondly, by adding the Graphene of 0.1 part ~ 0.3 part, greatly can improve the heat conductivility of described heat-conducting layer, better the heat passed over from heat-sink shell being passed to heat dissipating layer.
Finally, heat-conducting layer contains the silicon that mass parts is the magnesium of 0.8 part ~ 1.2 parts, the manganese of 0.2 part ~ 0.5 part, the titanium of 0.05 part ~ 0.3 part, the chromium of 0.05 part ~ 0.1 part, the vanadium of 0.05 part ~ 0.3 part and 0.3 part ~ 0.5 part, thus improve mechanical performance and the resistance to elevated temperatures of heat-conducting layer, as, mechanical performance is including, but not limited to yield strength, tensile strength.Such as, heat-conducting layer contains the magnesium that mass parts is 0.8 part ~ 1.2 parts, heat-conducting layer yield strength and tensile strength can be given to a certain extent, owing to dispelling the heat alloy in the fabrication process, need one-body molded for overall to heat-sink shell, heat-conducting layer and heat dissipating layer punching press, this just needs heat dissipating layer to have stronger yield strength, is subject to excessive punching press stress and produces non-reversible deformation, and then guarantee the proper heat reduction performance of heat radiation alloy to prevent heat dissipating layer in process.When the relative mass of magnesium is too low, e.g., when mass parts is less than 0.8 part, fully can not guarantee that the yield strength of heat-conducting layer meets the demands, but, when the relative mass of magnesium is too high, such as, when mass parts is greater than 1.2 parts, the ductility of heat-conducting layer and heat conductivility can be made again to decline rapidly.Such as, heat-conducting layer contains the iron that mass parts is 0.2 part ~ 0.8 part, can give the higher resistance to elevated temperatures of heat-conducting layer and high temperature resistant mechanical performance, is beneficial to the processing casting of heat-conducting layer.
Such as, the tubular radiating lamp of an embodiment of the present invention, wherein, and the described heat dissipating layer of described heat radiation alloy, it comprises each component of following mass parts:
88 parts ~ 93 parts, aluminium, silicon 5.5 parts ~ 10.5 parts, 0.3 part ~ 0.7 part, magnesium, copper 0.05 part ~ 0.3 part, iron 0.2 part ~ 0.8 part, 0.2 part ~ 0.5 part, manganese, titanium 0.05 part ~ 0.3 part, chromium 0.05 part ~ 0.1 part, vanadium 0.05 part ~ 0.3 part and 5 parts ~ 15 parts Graphenes.
First, above-mentioned heat dissipating layer contains the aluminium that mass parts is 88 parts ~ 93 parts, the coefficient of heat conduction of heat dissipating layer can be made to remain on 200W/mK ~ 220W/mK, when the heat of LED generation is after heat-sink shell and the heat radiation of heat-conducting layer part, when remaining heat passes to heat dissipating layer by heat-conducting layer again, heat dissipating layer can guarantee these remaining heats to be fallen apart by consistent, and then prevents heat from piling up on heat dissipating layer, causes hot-spot phenomenon.
Secondly, by adding the Graphene of 5 parts ~ 15 parts, effectively can improve the heat dispersion of described heat dissipating layer, and then the heat come from described heat-conducting layer transmission can be lost in extraneous air dielectric rapidly.
Finally, heat dissipating layer contains the vanadium that mass parts is the silicon of 5.5 parts ~ 10.5 parts, the magnesium of 0.3 part ~ 0.7 part, the copper of 0.05 part ~ 0.3 part, the iron of 0.2 part ~ 0.8 part, the manganese of 0.2 part ~ 0.5 part, the titanium of 0.05 part ~ 0.3 part, the chromium of 0.05 part ~ 0.1 part and 0.05 part ~ 0.3 part, greatly can improve the heat dispersion of heat dissipating layer.Such as, it is the silicon of 5.5 parts ~ 10.5 parts and the copper of 0.05 part ~ 0.3 part that heat dissipating layer contains mass parts, can guarantee that heat dissipating layer has the advantage of good mechanical properties and lighter weight, simultaneously, the heat-conductive characteristic of heat dissipating layer can also be improved further, guarantee that heat dissipating layer can fall apart by via the after-heat consistent after heat-sink shell and heat-conducting layer transmission further, and then prevent heat from piling up on heat dissipating layer, cause hot-spot phenomenon.
In order to improve the tensile strength of described heat dissipating layer further, such as, described heat dissipating layer also comprises the lead (Pb) that mass parts is 0.8 part ~ 1.2 parts, the lead containing 0.8 part ~ 1.2 parts when heat dissipating layer can improve the tensile strength of heat dissipating layer, like this, can prevent from striking out radiating fin when to be cast by heat dissipating layer, namely during laminated structure, pull stress owing to being subject to excessive punching press and rupturing.
In order to improve the high temperature oxidation resistance of described heat dissipating layer further, such as, described heat dissipating layer also comprises the niobium (Nb) that mass parts is 0.05 part ~ 0.08 part, find through many experiments evidence and theory analysis, when the mass parts of niobium is greater than 0.05 part, greatly can improves the antioxygenic property of heat dissipating layer, be appreciated that, heat dissipating layer as in LED street lamp radiator with the parts that contacting external air area is maximum, its to high temperature oxidation resistance require higher.But, when the mass parts of niobium is greater than 0.08 part, the magnetic of heat dissipating layer can be caused sharply to increase, can the miscellaneous part in tubular radiating lamp be had an impact.
In order to improve the heat dispersion of described heat dissipating layer further, such as, heat dissipating layer also comprises the germanium (Ge) that mass parts is 0.05 part ~ 0.2 part, when the mass parts of germanium is greater than 0.05 part, good effect can be played to the raising of the heat dispersion of heat dissipating layer, but, when the quality accounting of germanium is too much, such as, when the mass parts of germanium is greater than 0.2 part, the brittleness of heat dissipating layer can be made again to increase.
Above-mentioned heat radiation alloy arranges described heat-sink shell, described heat-conducting layer and described heat dissipating layer by superposing successively, and the heat-conductive characteristic of described heat-sink shell, described heat-conducting layer and described heat dissipating layer successively decreases successively, define heat-conductive characteristic gradient, compared to fine copper material, under the prerequisite guaranteeing heat dispersion, weight greatly reduces; A large amount of aluminium alloy existed on market, heat dispersion greatly strengthens.
It should be noted that, other embodiments of the present invention also comprise, and the technical characteristic in the various embodiments described above be combined with each other formed, the tubular radiating lamp that can implement.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. a tubular radiating lamp, is characterized in that, comprising:
Lamp holder, described lamp holder has two contact pins;
Enclosing cover,
Lampshade, described lampshade is columnar structured, and the two ends of described lampshade are connected with described lamp holder and described enclosing cover respectively;
Heat-dissipating cylinder, described heat-dissipating cylinder is hollow-core construction, the two ends of described heat-dissipating cylinder are connected with described lamp holder and described enclosing cover respectively, and described heat-dissipating cylinder is placed in described lampshade, the madial wall of described heat-dissipating cylinder protrudes to the inside and arranges some thermal columns, and some described thermal columns radially distribute in the madial wall of described heat-dissipating cylinder;
Some LED, some described LED are arranged at described heat-dissipating cylinder.
2. tubular radiating lamp according to claim 1, is characterized in that, described thermal column is hollow-core construction.
3. tubular radiating lamp according to claim 2, is characterized in that, described thermal column comprises cylindrical structure.
4. tubular radiating lamp according to claim 3, is characterized in that, some described thermal columns are interconnected away from one end of described LED.
5. tubular radiating lamp according to claim 4, is characterized in that, described thermal column offers some through holes.
6. tubular radiating lamp according to claim 5, is characterized in that, the diameter of described through hole is 1mm ~ 1.5mm.
7. tubular radiating lamp according to claim 1, is characterized in that, is spaced apart 2mm ~ 5mm between two adjacent described LED.
8. tubular radiating lamp according to claim 7, is characterized in that, is spaced apart 3mm ~ 4mm between two adjacent described LED.
9. tubular radiating lamp according to claim 8, is characterized in that, is spaced apart 3.5mm between two adjacent described LED.
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| CN105240690A (en) * | 2015-09-24 | 2016-01-13 | 惠州莫思特科技有限公司 | Novel light-emitting diode (LED) lamp |
| CN106090653A (en) * | 2016-08-19 | 2016-11-09 | 东莞市闻誉实业有限公司 | Tubular radiating lamp |
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