CN102003690A - High-power light-emitting diode (LED) lamp cap with epoxy resin heat conduction pipe added with carbon nano tube material - Google Patents
High-power light-emitting diode (LED) lamp cap with epoxy resin heat conduction pipe added with carbon nano tube material Download PDFInfo
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- CN102003690A CN102003690A CN2009101897649A CN200910189764A CN102003690A CN 102003690 A CN102003690 A CN 102003690A CN 2009101897649 A CN2009101897649 A CN 2009101897649A CN 200910189764 A CN200910189764 A CN 200910189764A CN 102003690 A CN102003690 A CN 102003690A
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Abstract
The invention discloses a modular high-power light-emitting diode (LED) lamp cap with an epoxy resin heat conduction pipe added with a carbon nano tube material for roadway lighting and a manufacturing method thereof and also discloses a method for preparing the epoxy resin heat conduction pipe added with the carbon nano tube material. In a high-power LED lamp module, a circuit board is clung to one surface of a radiating substrate, so that heat of each high-power LED luminous body welded on the circuit board can be conducted to the radiating substrate; radiating fins are fixedly arranged on the other surface of the radiating substrate; and the epoxy resin heat conduction pipe added with the carbon nano tube material is coupled with the radiating fins and the radiating substrate. The heat on the radiating substrate is rapidly conducted to the radiating fins by utilizing the performance of high thermal conductivity of the epoxy resin heat conduction pipe added with the carbon nano tube material, so that the heat cannot be congregated on the radiating substrate and the defect of heat dissipation of the high-power LED lamp cap in the prior art is overcome essentially.
Description
Technical field
The present invention relates to lamp cap device, particularly relate to the method that improves the high power LED bulb holder radiating efficiency for the road lighting apparatus configuration, with the high power LED bulb holder of this method preparation, and the manufacture method that is applied to heat-transfer device wherein.
Background technology
Consider that from the angle of saving the energy and prolongation working life prior art is used for the lamp cap device of road lighting apparatus, for example the lamp holder of street lamp has used great power LED as light source more and more at large.Great power LED is as semiconductor components and devices, and is very sensitive to operating temperature.If great power LED is in the environment that is higher than the design work temperature for a long time, will have a strong impact on its stability and service life.The great power LED illuminator is to influence its stability and the principal element in service life in luminous produced simultaneously a large amount of heats in course of normal operation certainly, lead away as the untimely heat that great power LED illuminator self is produced and to leave, this great power LED illuminator chip will wear out rapidly and burn.Therefore, heat radiation is the bottleneck problem that high-power LED street lamp runs in popularization.
The radiating mode that is adopted in the high power LED bulb holder design mainly contains two kinds at present.A kind of radiating mode is that the whole aluminium radiating fin of simple employing dispels the heat, and is about to the one side that high-power LED chip is installed in a heat-radiating substrate, is provided with a plurality of radiating fins at this heat-radiating substrate another side.The shortcoming of this method is the size that increases described radiating fin in order to improve radiating effect arbitrarily, to increase area of dissipation.This design often makes product weight overweight, and because the not basic solution of heat conduction problem, radiating effect does not significantly improve on the contrary; And be easy to groove inner accumulated dust between described radiating fin, and foreign material such as birds droppings cause windage very big, and especially winter, easy ponding froze in the north, can cause certain risk.Another kind of radiating mode is to adopt to disperse radiating mode, and being about to upward, an a kind of heat-radiating substrate of mode is divided into several heat-radiating substrates that radiating fin is installed.This radiating mode product weight has alleviated many, and the integral heat sink area is enough, but the efficiently radiates heat area is not enough, because the passage of heat conduction is very little, can only be unfavorable for the rapid conduction of heat by connecting the rib conduction heat of each radiating fin.The common defects of above-mentioned two kinds of radiating modes is, they all are to absorb the heat that the great power LED illuminator sends by heat-radiating substrate, by the radiating fin distribute heat, can be rapidly the heat of heat-radiating substrate be conducted means to radiating fin but lack, above-mentioned first method is to realize the heat conduction by contacting of radiating fin and heat-radiating substrate; Above-mentioned second method is to contact with heat-radiating substrate by radiating fin, and realizes the heat conduction with the rib that radiating fin and heat-radiating substrate all are connected contact.But this dual mode all can not conduct to radiating fin with the heat that gathers on the heat-radiating substrate, causes the heat that accumulates on the heat-radiating substrate to be far longer than the heat that is conducted on the radiating fin.So the above-mentioned two kinds of radiating modes of prior art all can not be from solving the heat dissipation problem of high power LED bulb holder in essence.
Summary of the invention
The technical problem to be solved in the present invention is to avoid the deficiencies in the prior art part and the preparation method that proposes the epoxy resin heat pipe of the high interpolation carbon nano-tube material of a kind of heat conductivility, and propose to use the modular high-power LED lamp holder and the manufacture method thereof of this heat pipe, create a kind of radiating mode that is different from prior art, heat on each module heat dissipating substrate is conducted on the radiating fin fast, from solving the heat dissipation problem of high power LED bulb holder in essence.
The present invention solve the technical problem can be by realizing by the following technical solutions:
Implement a kind of preparation method who adds the epoxy resin heat pipe of carbon nano-tube material, described heat pipe is used for conducting fast heat.Described method comprises the steps:
A. be 3.0% to 10.0% component requirement according to carbon nano-tube material shared mass percent in the material compound, in acetone solvent, add described carbon nano-tube material and make it to disperse by ultrasonic wave with epoxy resin;
B. after steps A, in the mixed solution of described carbon nano-tube material and acetone, add the epoxy resin of thickness state, and continue to make it to disperse by ultrasonic wave by described component requirement;
C. carrying out vacuumize degassing after the solvent evaporates of waiting handles;
D. add curing agent, the above-mentioned epoxy resin that has added carbon nano-tube material is injected the mould curing molding.
When implementation step B,, add an amount of plasticizer, age resister and/or colouring agent at the specific requirement of different product.
Described carbon nano-tube material comprises SWCN material and multi-wall carbon nano-tube tube material.
The described carbon nano-tube material of steps A is after the preliminary extraction by arc discharge method, laser ablation method or chemical vapour deposition technique, is prepared from through purifying process again.Described purifying process is meant and changes synthesis condition so that thereby described CNT is increased to the processing method that separable degree is removed agraphitic carbon, carbon nano-particle and catalyst granules, or the processing method that refers to use oxidant to remove attached to the carbon nano-particle oxidation on the CNT wall; Described functional modification is meant that the method with oxidation prepares the CNT that end group is a carboxylic group, and then makes carboxyl be converted into the group that can perhaps react with polymeric matrix mutually with polymeric matrix through condensation reaction.
The present invention solve the technical problem can also be by realizing by the following technical solutions:
Implement a kind of manufacture method that is used for the high power LED bulb holder of road lighting, comprise the steps:
A. weld at least one great power LED illuminator on a circuit board, and this circuit board is close on the heat-radiating substrate, the heat of each LED illuminator of make suring conducts to described heat-radiating substrate rapidly, at the another side of this heat-radiating substrate radiating fin is installed then;
B. make at least one heat pipe with the epoxy resin composite material that adds carbon nano-tube material, in described CNT-epoxy resin composite material, the shared mass percent of described carbon nano-tube material is 3.0% to 10.0%; Epoxy resin heat pipe with described interpolation carbon nano-tube material connects heat-radiating substrate and radiating fin, makes the heat on the described heat-radiating substrate conduct to each radiating fin rapidly by described heat pipe; Thereby make a great power LED lamp module;
C. at least one described great power LED lamp module is installed in a case or the framework, necessary power supply and the control module of configuration made high power LED bulb holder simultaneously.
Described step B also comprises step by step following:
B1. the epoxy resin heat pipe with described interpolation carbon nano-tube material is made into by two sections straight tubes and one section bend pipe connection integrated " U " shape pipe;
B2. the one side of not being close to great power LED circuit plate at described heat-radiating substrate mills out at least one groove, stamps out through hole at each radiating fin middle part;
B3. the straight-run of pipe of the epoxy resin heat pipe of described interpolation carbon nano-tube material is embedded on the described heat-radiating substrate in the corresponding groove, and connect fixing by soldering; Each radiating fin is placed in self through hole on another section straight tube of epoxy resin heat pipe of described interpolation carbon nano-tube material, and evenly arrange each radiating fin, be coupled as one by the epoxy resin heat pipe of soldering with described each radiating fin and interpolation carbon nano-tube material.
Make four epoxy resin heat pipes that add carbon nano-tube material according to described B1 step by step.In described B2 step by step, on described heat-radiating substrate, mill out the twice groove, each radiating fin middle part stamps out two through hole.In described B3 step by step, embed respectively at the two ends of per pass groove and connect a straight-run of pipe that adds the epoxy resin heat pipe of carbon nano-tube material, and make the bend pipe of this heat pipe be positioned at the end of groove by soldering; Described radiating fin is straddled on the heat-radiating substrate, and two straight tubes of another section separately that add the epoxy resin heat pipe of carbon nano-tube material in the same end of two grooves pass the corresponding two through hole of same radiating fin respectively by respective through hole and connect by soldering with this radiating fin.
The present invention solve the technical problem also can be by realizing by the following technical solutions:
Design, a kind of high power LED bulb holder that is used for road lighting of manufacturing especially, comprise by at least one great power LED lamp module of a case or frame fixation.This great power LED lamp module comprises the epoxy resin heat pipe of the circuit board, heat-radiating substrate, radiating fin and the interpolation carbon nano-tube material that are welded with at least one great power LED illuminator; In the composite of the carbon nano-tube material of making described heat pipe and epoxy resin, the shared mass percent of described carbon nano-tube material is 3.0% to 10.0%.The one side of described heat-radiating substrate is close to described circuit board, makes the heat of each the great power LED illuminator that is welded on this circuit board can conduct on the heat-radiating substrate; The another side fixed installation radiating fin of described heat-radiating substrate; The epoxy resin heat pipe of described interpolation carbon nano-tube material connects radiating fin and heat-radiating substrate, makes the heat on the described heat-radiating substrate conduct to each radiating fin by the epoxy resin heat pipe that adds carbon nano-tube material.
The epoxy resin heat pipe of described interpolation carbon nano-tube material is to connect integrated " U " shape pipe by two sections straight tubes and one section bend pipe; Be not close to one side setting at least one groove of circuit board at described heat-radiating substrate, at least one through hole is set on each radiating fin; The straight-run of pipe of the epoxy resin heat pipe of described interpolation carbon nano-tube material embeds in the corresponding groove, described each radiating fin then is placed on another section straight tube of epoxy resin heat pipe of described interpolation carbon nano-tube material with self through hole, and is coupled as one.
Described great power LED lamp module is provided with four epoxy resin heat pipes that add carbon nano-tube material, and described heat-radiating substrate is provided with the twice groove, is provided with two through holes on the described radiating fin separately; The two halves of per pass groove embeds respectively and connects a straight-run of pipe that adds the epoxy resin heat pipe of carbon nano-tube material, and makes the bend pipe of this heat pipe be positioned at the end of described groove; Described radiating fin straddles on the heat-radiating substrate, and the straight tubes of another section separately that add the epoxy resin heat pipe of carbon nano-tube materials in two of the same end of two grooves then pass through two corresponding through holes on the same radiating fin respectively and connect with this radiating fin.
Compare with prior art, the present invention's " high power LED bulb holder of the epoxy resin heat pipe of carbon nano-tube material is added in configuration " technique effect is:
1. utilize the high thermal conductivity characteristic of CNT, itself and the epoxy resin with excellent mechanical properties, insulating properties, decay resistance, agglomerability energy and low-shrinkage energy are combined into the manufactured materials of heat pipe, make the epoxy resin heat pipe of described interpolation carbon nano-tube material not only have good heat conductivility but also can be installed on high power LED bulb holder, prior art high power LED bulb holder heat radiation for a change provides precondition;
2. utilize the high thermal conductivity performance of the epoxy resin heat pipe of described interpolation carbon nano-tube material, heat on the heat-radiating substrate can be conducted to rapidly on the radiating fin, make heat can not accumulate on the heat-radiating substrate, from having solved the heat dissipation problem of prior art high power LED bulb holder in essence, be the update of traditional heat-dissipating mode;
3. along with brand-new high-power LED street lamp heat radiation theory---putting into practice of CNT heat radiation theory, solved fully because of the bad light decay problem that causes high power LED bulb holder of dispelling the heat, made high-power and ultra-high power LED street lamp steps into the road that superbright degree truly advances;
4. the present invention adopts the high power LED bulb holder of modularized design, has improved radiating efficiency, makes described high power LED bulb holder have extendability, and described lamp holder can be expanded and reduce as required easily.
5. use the epoxy resin synthetic material that adds carbon nano-tube material to make heat pipe, make high power LED bulb holder lighter, install more simple.
Description of drawings
Fig. 1 is the main schematic diagram of looking of the orthographic projection of high power LED bulb holder preferred embodiment of the present invention;
Fig. 2 is the orthographic projection elevational schematic view of described preferred embodiment;
Fig. 3 is the axonometric projection schematic diagram of described preferred embodiment;
Fig. 4 is the main schematic diagram of looking of orthographic projection of the great power LED lamp module 10 of described preferred embodiment;
Fig. 5 is the orthographic projection schematic top plan view of the heat-radiating substrate 40 of described preferred embodiment;
Fig. 6 is the main schematic diagram of looking of orthographic projection of the CNT-epoxy resin heat pipe 60 of described preferred embodiment;
Fig. 7 is that schematic diagram is looked on the orthographic projection left side of the radiating fin 50 of described preferred embodiment;
The main schematic diagram of looking of orthographic projection of the great power LED lamp module 10 when Fig. 8 is the described radiating fin 50 of described installation a slice.
The specific embodiment
Be described in further detail below in conjunction with preferred embodiment shown in the accompanying drawing.
CNT Carbon Nanometer Tube, be abbreviated as CNT, be the seamless nanoscale tubular crystal that curls and form by graphite linings, comprise SWCN Single Walled Carbon Nanometer Tube that is abbreviated as SWCNT and the multi-walled carbon nano-tubes Multi-Walled Carbon Nanometer Tube that is abbreviated as MWCNT.SWCNT can be regarded as curling the forming of lamella by graphite, and MWCNT is made up of many single wall layer shells.The diameter of SWCNT is generally 1～6nm, and minimum diameter is approximately 0.5nm, with C
36The diameter of molecule is suitable, but the diameter of SWCNT is unstable especially later on greater than 6nm, and subsiding of SWNT pipe can be taken place, and length then can reach the hundreds of nanometer to several microns.Because the minimum diameter of SWCNT and fullerene molecule are similar, so also the someone is called Baji-tube or Fu Leguan.The interlamellar spacing of MWCNT is about 0.34nm, and to tens nanometers, length is generally in micron dimension in several nanometers for diameter, and elder can reach several millimeters.CNT can be used for filling some elements or compound, has the hybrid nano-material of property with preparation.On structure, described CNT comprises chair shape SWCN, zigzag SWCN, hand shape SWCN and spiral carbon nano pipe.The end points of described CNT has sealing, and opening is also arranged.CNT has the good heat transfer performance, because it has very large draw ratio, thereby its heat exchange performance alongst is very high, the heat exchange performance of its relative vertical direction is lower, by suitable orientation, CNT can synthesize the heat conducting material of high anisotropy.In addition, CNT has high thermal, as long as the CNT of the trace that mixes in composite, the thermal conductivity of this composite will obtain very big improvement.CNT also has other good performances such as optics and Chu Qing, and these good character make CNT be considered to the reinforcing material of desirable polymer composites just.
The preparation of CNT mainly contains three kinds of methods: arc discharge method, laser ablation method and chemical vapour deposition technique.Arc discharge method and laser ablation method all relate to the condensation reaction that obtains the gas-phase carbon atom of heat from the solid carbon evaporation.Chemical vapour deposition (CVD) is the catalytic decomposition carbonaceous material, deposits on the matrix or on matrix then and grows.Compare with other two kinds of methods, chemical vapour deposition technique can be controlled the length and the structure of nanotube better, and its preparation process is also the easiest to expand industrial scale to.There has been company to utilize chemical vapour deposition technique to produce the CNT commodity.
The method of prior art for preparing CNT all can not prepare the high pure nano-carbon tube of architectural features such as having unified diameter and length.Therefore particularly, the CNT of preparing often contains impurity such as a certain amount of agraphitic carbon, carbon nano-particles and catalyst granules, and the existence of these impurity directly influences itself performance and performance of composites, uses and will pass through purification process as last.The method of purifying carbon nano-tube has two approach: the one, change synthesis condition, and make CNT be increased to separable degree; The 2nd, adopt suitable oxidant that it is removed attached to the carbon nano-particle oxidation around the tube wall, thus remaining carbon nanotube only.With regard to present technical conditions, change synthesis condition, carbon nano-particle still can not be removed from CNT fully, thereby to adopt second kind of approach to handle be desirable.Method for oxidation can adopt dioxygen oxidation method, carbon dioxide oxidizing process, nitric acid oxidation method, nitration mixture oxidizing process, potassium dichromate oxidation etc.It is more active that the local stress of CNT makes itself and lamella graphite compare chemical property, therefore can carry out functional modification to it by chemical reaction.The functional modification of CNT can improve its dispersiveness in solution and polymeric matrix, and can improve the interface compatibility between itself and the polymeric matrix, and this has created prerequisite for the preparation high-performance engineering with composite.Method with oxidation prepares the CNT that end group is a carboxylic group, and then carboxyl can condensation reaction be converted into other can with polymeric matrix mutually perhaps with the group of polymeric matrix reaction, reach the purpose that control polymer and nanotube interface, dispersive stress prepare good mechanical property composite.
Epoxy resin is a kind of common engineering material, has good mechanical performance, insulating properties, decay resistance, gluing performance and low-shrinkage energy.Because its goods combination property is better than other resins,, prepares coating, water material feeding, plastic packaging material, lamination material, bonding agent etc. as available its so its application is extremely extensive.Using extremely extensively in chemical industry, electromechanics, communications and transportation, each sector of the national economy of national defense construction, act on very greatly, is a kind of indispensable important chemical materials.High-tech in recent years development is had higher requirement to epoxide resin material, as improving and improving its mechanical property, hot property, electrical property etc., accomplishes to learn from other's strong points to offset one's weaknesses, and preparation has the epoxide resin material of ideal performance.Epoxy resin and CNT are compound can be improved performance by a relatively large margin and improve the intrinsic weakness of epoxy resin, becomes one of focus of carbon nanotubes polymer matrix composite research.
The preparation method of common polymer/carbon nano-tube composite comprises solution blending, melt blending and in-situ polymerization etc.Development in recent years the new methods that prepare the polymer/carbon nano-tube composite such as emulsion technique, solid state shear grinding, retrogradation spinning.
The present invention utilizes the high thermal conductivity of CNT and the above-mentioned good characteristic of epoxy resin, propose a kind of method for preparing CNT-epoxy resin composite material and and then make the heat pipe that can be used for high power LED bulb holder with this material, promptly implement a kind of preparation method who adds the epoxy resin heat pipe of carbon nano-tube material, described heat pipe is used for conducting fast heat.Described method comprises the steps:
A. be 3.0% to 10.0% component requirement according to carbon nano-tube material shared mass percent in the material compound, in acetone solvent, add described carbon nano-tube material and make it to disperse by ultrasonic wave with epoxy resin;
B. after steps A, in the mixed solution of described carbon nano-tube material and acetone, add the epoxy resin of thickness state, and continue to make it to disperse by ultrasonic wave by described component requirement;
C. carrying out vacuumize degassing after the solvent evaporates of waiting handles;
D. add curing agent, the above-mentioned epoxy resin that has added carbon nano-tube material is injected the mould curing molding.
When implementation step B,, add an amount of plasticizer, age resister and/or colouring agent at the specific requirement of different product.
As mentioned above, described carbon nano-tube material comprises SWCN material and multi-wall carbon nano-tube tube material.The described carbon nano-tube material of steps A is after the preliminary extraction by arc discharge method, laser ablation method or chemical vapour deposition technique, is prepared from through purifying process and functional modification again; Described purifying process is meant and changes synthesis condition so that thereby described CNT is increased to the processing method that separable degree is removed agraphitic carbon, carbon nano-particle and catalyst granules, or the processing method that refers to use oxidant to remove attached to the carbon nano-particle oxidation on the CNT wall; Described functional modification is meant that the method with oxidation prepares the CNT that end group is a carboxylic group, and then makes carboxyl be converted into the group that can perhaps react with polymeric matrix mutually with polymeric matrix through condensation reaction.
The carbon nano-tube material heat radiation is compared with the aluminium radiator that tradition adopts, have many advantages such as heat transfer efficiency height, heat-transfer rate be fast, in light weight, it will be the excellent mode that future, LED dispelled the heat soon, having got through the road that moves ahead for the high-power LED street lamp heat radiation, is the revolution of high-powered LED lamp heat radiation.
The present invention is used to solve the heat dissipation problem of high power LED bulb holder with above-mentioned CNT-epoxy resin heat pipe, implements a kind of manufacture method that is used for the high power LED bulb holder of road lighting, comprises the steps:
A. weld at least one great power LED illuminator on a circuit board, and this circuit board is close on the heat-radiating substrate, the heat of each LED illuminator of make suring conducts to described heat-radiating substrate rapidly, at the another side of this heat-radiating substrate radiating fin is installed then;
B. make at least one heat pipe with the epoxy resin composite material that adds carbon nano-tube material, in described CNT-epoxy resin composite material, the shared mass percent of described carbon nano-tube material is 3.0% to 10.0%; Epoxy resin heat pipe with described interpolation carbon nano-tube material connects heat-radiating substrate and radiating fin, makes the heat on the described heat-radiating substrate conduct to each radiating fin rapidly by described heat pipe; Thereby make a great power LED lamp module;
C. at least one described great power LED lamp module is installed in a case or the framework, necessary power supply and the control module of configuration made high power LED bulb holder simultaneously.
Described step B also comprises step by step following:
The epoxy resin heat pipe of B1. described interpolation carbon nano-tube material is made into by two sections straight tubes and one section bend pipe connection integrated " U " shape pipe;
B2. the one side of not being close to great power LED circuit plate at described heat-radiating substrate mills out at least one groove, stamps out through hole at each radiating fin middle part; The cross section of described groove can be semicircle, rectangle or up-narrow and down-wide swallow-tail form;
B3. the straight-run of pipe of the epoxy resin heat pipe of described interpolation carbon nano-tube material is embedded on the described heat-radiating substrate in the corresponding groove, and connect fixing by soldering; Each radiating fin is placed in self through hole on another section straight tube of epoxy resin heat pipe of described interpolation carbon nano-tube material, and evenly arrange each radiating fin, be coupled as one by the epoxy resin heat pipe of soldering with described each radiating fin and interpolation carbon nano-tube material.
Make four epoxy resin heat pipes that add carbon nano-tube material according to described B1 step by step; In described B2 step by step, on described heat-radiating substrate, mill out the twice groove, each radiating fin middle part stamps out two through hole; In described B3 step by step, embed respectively at the two ends of per pass groove and connect the straight-run of pipe of the epoxy resin heat pipe that adds carbon nano-tube material, and make the bend pipe of this heat pipe be positioned at the end of groove by soldering; Described radiating fin is straddled on the heat-radiating substrate, and other section one straight tube separately that adds the epoxy resin heat pipe of carbon nano-tube material in two of the same end of two grooves passes through the corresponding two through hole of same radiating fin respectively and connects by soldering with this radiating fin.
The present invention also makes a kind of high power LED bulb holder 70 that is used for road lighting according to said method, as Fig. 1 and shown in Figure 7, comprises by at least one great power LED lamp module 10 of a case or frame fixation; This great power LED lamp module 10 comprises circuit board 30, heat-radiating substrate 40, radiating fin 50 that is welded with at least one great power LED illuminator 20 and the epoxy resin heat pipe 60 that adds carbon nano-tube material; In the composite of the carbon nano-tube material of making described heat pipe and epoxy resin, the shared mass percent of described carbon nano-tube material is 3.0% to 10.0%; The one side of described heat-radiating substrate is close to described circuit board 30, and the heat that is welded on each the great power LED illuminator 20 on this circuit board 30 can be conducted on the heat-radiating substrate 40; The another side fixed installation radiating fin 50 of described heat-radiating substrate 40; The epoxy resin heat pipe 60 of described interpolation carbon nano-tube material connects radiating fin 50 and heat-radiating substrate 40, makes the heat on the described heat-radiating substrate 40 conduct to each radiating fin 50 by the epoxy resin heat pipe 60 that adds carbon nano-tube material.
The present invention utilizes the good heat-conductive characteristic of epoxy resin heat pipe that adds carbon nano-tube material, the heat that self is sent by great power LED illuminator 20 that gathers on the heat-radiating substrate 40 is conducted to rapidly on each radiating fin 50 by heat pipe 60, substantially guarantee that the heat of conduction on the heat pipe 60 is equal to the heat of the absorption on the heat-radiating substrate 40 substantially, from having overcome the low defective of prior art radiating efficiency in essence.Simultaneously, the present invention also adopts the modular high power LED bulb holder 70 of manufacturing and designing of great power LED lamp module 10, the user can select expansion or reduce described great power LED lamp module 10 according to the power demand of reality, not only is beneficial to heat radiation also for making the easier for installation of high power LED bulb holder 70.
The preferred embodiment of the present invention, to shown in Figure 8, the epoxy resin heat pipe 60 of described interpolation carbon nano-tube material is to connect integrated " U " shape pipe by 61,62 and one sections bend pipes of two sections straight tubes as Fig. 4; Be not close to one side setting at least one groove 41 of circuit board 30 at described heat-radiating substrate 40, at least one through hole 51 is set on each radiating fin 50; The straight-run of pipe 61 of the epoxy resin heat pipe 60 of described interpolation carbon nano-tube material embeds in the corresponding groove 41,50 through holes 51 with self of described each radiating fin are placed on another section straight tube 62 of epoxy resin heat pipe 60 of described interpolation carbon nano-tube material, and are coupled as one.
Specifically, described great power LED lamp module 10 is provided with four epoxy resin heat pipes 60 that add carbon nano-tube material, and described heat-radiating substrate 40 is provided with twice groove 41, is provided with two through holes 51 on the described radiating fin 50 separately.Described four epoxy resin heat pipes 60 that add carbon nano-tube material are divided into two groups, distance between one group of two heat pipe 60 straight tube 61,62 separately is different with another distance of organizing between two heat pipes 60 straight tube 61,62 separately, and promptly one group bend pipe 63 radical lengths are greater than bend pipe 64 radical lengths of another group.Per pass groove 41 two ends embed respectively and connect a straight-run of pipe 61 that adds the epoxy resin heat pipe 60 of carbon nano-tube material, and make the bend pipe 63 of this heat pipe 60 or the end that bend pipe 64 is positioned at described groove 41.Described radiating fin 50 straddles on the heat-radiating substrate 40, also for each radiating fin 50 locating slot 42 is set on heat-radiating substrate 40, with auxiliary fixing described radiating fin 50.62 of the straight tubes of another section separately that add the epoxy resin heat pipe 60 of carbon nano-tube materials in two of two grooves, 41 same ends pass through two corresponding through holes 51 on the same radiating fin 50 respectively and connect with this radiating fin 50.
After described each great power LED lamp module 10 combination are fixing, can also be at top cap one case to prevent the dirt influence.
Claims (10)
1. preparation method who adds the epoxy resin heat pipe of carbon nano-tube material, described heat pipe is used for conducting fast heat; It is characterized in that described method comprises the steps:
A. be 3.0% to 10.0% component requirement according to carbon nano-tube material shared mass percent in the material compound, in acetone solvent, add described carbon nano-tube material and make it to disperse by ultrasonic wave with epoxy resin;
B. after steps A, in the mixed solution of described carbon nano-tube material and acetone, add the epoxy resin of thickness state, and continue to make it to disperse by ultrasonic wave by described component requirement;
C. carrying out vacuumize degassing after the solvent evaporates of waiting handles;
D. add curing agent, the above-mentioned epoxy resin that has added carbon nano-tube material is injected the mould curing molding.
2. the preparation method of the epoxy resin heat pipe of interpolation carbon nano-tube material according to claim 1 is characterized in that:
When implementation step B,, add an amount of plasticizer, age resister and/or colouring agent at the specific requirement of different product.
3. the preparation method of the epoxy resin heat pipe of interpolation carbon nano-tube material according to claim 1 is characterized in that: described carbon nano-tube material comprises SWCN material and multi-wall carbon nano-tube tube material.
4. according to the preparation method of the epoxy resin heat pipe of claim 1 or 2 described interpolation carbon nano-tube materials, it is characterized in that:
The described carbon nano-tube material of steps A is after the preliminary extraction by arc discharge method, laser ablation method or chemical vapour deposition technique, is prepared from through purifying process and functional modification again;
Described purifying process is meant and changes synthesis condition so that thereby described CNT is increased to the processing method that separable degree is removed agraphitic carbon, carbon nano-particle and catalyst granules, or the processing method that refers to use oxidant to remove attached to the carbon nano-particle oxidation on the CNT wall;
Described functional modification is meant that the method with oxidation prepares the CNT that end group is a carboxylic group, and then makes carboxyl be converted into the group that can perhaps react with polymeric matrix mutually with polymeric matrix through condensation reaction.
5. a manufacture method that is used for the high power LED bulb holder of road lighting is characterized in that comprising the steps:
A. weld at least one great power LED illuminator on a circuit board, and this circuit board is close on the heat-radiating substrate, the heat of each LED illuminator of make suring conducts to described heat-radiating substrate rapidly, at the another side of this heat-radiating substrate radiating fin is installed then;
B. make at least one heat pipe with the epoxy resin composite material that adds carbon nano-tube material, in described CNT-epoxy resin composite material, the shared mass percent of described carbon nano-tube material is 3.0% to 10.0%; Epoxy resin heat pipe with described interpolation carbon nano-tube material connects heat-radiating substrate and radiating fin, makes the heat on the described heat-radiating substrate conduct to each radiating fin rapidly by described heat pipe; Thereby make a great power LED lamp module;
C. at least one described great power LED lamp module is installed in a case or the framework, necessary power supply and the control module of configuration made high power LED bulb holder simultaneously.
6. the manufacture method that is used for the high power LED bulb holder of road lighting according to claim 5 is characterized in that: described step B also comprises step by step following:
The epoxy resin heat pipe of B1. described interpolation carbon nano-tube material is made into by section root straight tube and one section bend pipe connection integrated " U " shape pipe;
B2. the one side of not being close to great power LED circuit plate at described heat-radiating substrate mills out at least one groove, stamps out through hole at each radiating fin middle part;
B3. the straight-run of pipe of the epoxy resin heat pipe of described interpolation carbon nano-tube material is embedded on the described heat-radiating substrate in the corresponding groove, and connect fixing by soldering; Each radiating fin is placed in self through hole on another section straight tube of epoxy resin heat pipe of described interpolation carbon nano-tube material, and evenly arrange each radiating fin, be coupled as one by the epoxy resin heat pipe of soldering with described each radiating fin and interpolation carbon nano-tube material.
7. the manufacture method that is used for the high power LED bulb holder of road lighting according to claim 6 is characterized in that:
Make four epoxy resin heat pipes that add carbon nano-tube material according to described B1 step by step;
In described B2 step by step, on described heat-radiating substrate, mill out the twice groove, each radiating fin middle part stamps out two through hole;
In described B3 step by step, embed respectively at the two ends of per pass groove and connect the straight-run of pipe of the epoxy resin heat pipe that adds carbon nano-tube material, and make the bend pipe of this heat pipe be positioned at the end of groove by soldering; Described radiating fin is straddled on the heat-radiating substrate, and two straight tubes of another section separately that add the epoxy resin heat pipe of carbon nano-tube material in the same end of two grooves pass through the corresponding two through hole of same radiating fin respectively and connect by soldering with this radiating fin.
8. high power LED bulb holder that is used for road lighting is characterized in that:
Comprise by at least one great power LED lamp module (10) of a case or frame fixation;
This great power LED lamp module (10) comprises circuit board (30), heat-radiating substrate (40), radiating fin (50) that is welded with at least one great power LED illuminator (20) and the epoxy resin heat pipe (60) that adds carbon nano-tube material; In the composite of the carbon nano-tube material of making described heat pipe and epoxy resin, the shared mass percent of described carbon nano-tube material is 3.0% to 10.0%;
The one side of described heat-radiating substrate is close to described circuit board (30), and the heat of each the great power LED illuminator (20) that is welded on this circuit board (30) can be conducted on the heat-radiating substrate (40); The another side fixed installation radiating fin (50) of described heat-radiating substrate (40); The epoxy resin heat pipe (60) of described interpolation carbon nano-tube material connects radiating fin (50) and heat-radiating substrate (40), makes the heat on the described heat-radiating substrate (40) conduct to each radiating fin (50) by the epoxy resin heat pipe (60) that adds carbon nano-tube material.
9. the high power LED bulb holder that is used for road lighting according to claim 8 is characterized in that:
The epoxy resin heat pipe (60) of described interpolation carbon nano-tube material is to connect integrated " U " shape pipe by two sections straight tubes (61,62) and one section bend pipe (63 or 64); Be not close to one side setting at least one groove (41) of circuit board (30) at described heat-radiating substrate (40), at least one through hole (51) is set on each radiating fin (50); The straight-run of pipe (61) of the epoxy resin heat pipe (60) of described interpolation carbon nano-tube material embeds in the corresponding groove (41), described each radiating fin (50) then is placed on another section straight tube (62) of epoxy resin heat pipe (60) of described interpolation carbon nano-tube material with self through hole (51), and is coupled as one.
10. the high power LED bulb holder that is used for road lighting according to claim 9 is characterized in that:
Described great power LED lamp module (10) is provided with four epoxy resin heat pipes (60) that add carbon nano-tube material, and described heat-radiating substrate (40) is provided with twice groove (41), is provided with two through holes (51) on the described radiating fin (50) separately;
The two halves of per pass groove (41) embeds respectively and connects a straight-run of pipe (61) that adds the epoxy resin heat pipe (60) of carbon nano-tube material, and makes the bend pipe (63 or 64) of this heat pipe (60) be positioned at the end of described groove (41); Described radiating fin (50) straddles on the heat-radiating substrate (40), and two straight tubes of another section separately (62) that add the epoxy resin heat pipe (60) of carbon nano-tube materials in the same end of two grooves (41) then pass through two last corresponding through holes (51) of same radiating fin (50) respectively and connect with this radiating fin (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101897649A CN102003690A (en) | 2009-08-28 | 2009-08-28 | High-power light-emitting diode (LED) lamp cap with epoxy resin heat conduction pipe added with carbon nano tube material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101897649A CN102003690A (en) | 2009-08-28 | 2009-08-28 | High-power light-emitting diode (LED) lamp cap with epoxy resin heat conduction pipe added with carbon nano tube material |
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| Publication Number | Publication Date |
|---|---|
| CN102003690A true CN102003690A (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101897649A Pending CN102003690A (en) | 2009-08-28 | 2009-08-28 | High-power light-emitting diode (LED) lamp cap with epoxy resin heat conduction pipe added with carbon nano tube material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100195331A1 (en) * | 2009-01-30 | 2010-08-05 | Masakazu Kondo | Light-emitting diode lamp with radiation mechanism |
| CN102182951A (en) * | 2011-05-10 | 2011-09-14 | 广州大学 | Light emitting diode (LED) high-power lighting lamp of novel radiating device |
| CN102179500A (en) * | 2011-04-27 | 2011-09-14 | 陈俊峰 | Casting connection process of heat-conducting pipe of lamp |
| CN102281744A (en) * | 2011-07-25 | 2011-12-14 | 广州大学 | High-power LED driven power supply radiator based on carbon nano tube |
-
2009
- 2009-08-28 CN CN2009101897649A patent/CN102003690A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100195331A1 (en) * | 2009-01-30 | 2010-08-05 | Masakazu Kondo | Light-emitting diode lamp with radiation mechanism |
| US8256928B2 (en) * | 2009-01-30 | 2012-09-04 | Kondo Kogei Co., Ltd. | Light-emitting diode lamp with radiation mechanism |
| CN102179500A (en) * | 2011-04-27 | 2011-09-14 | 陈俊峰 | Casting connection process of heat-conducting pipe of lamp |
| CN102179500B (en) * | 2011-04-27 | 2013-09-11 | 陈俊峰 | Casting connection process of heat-conducting pipe of lamp |
| CN102182951A (en) * | 2011-05-10 | 2011-09-14 | 广州大学 | Light emitting diode (LED) high-power lighting lamp of novel radiating device |
| CN102281744A (en) * | 2011-07-25 | 2011-12-14 | 广州大学 | High-power LED driven power supply radiator based on carbon nano tube |
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Application publication date: 20110406 |