CN104235649A - Improved LED (light-emitting diode) lamp - Google Patents
Improved LED (light-emitting diode) lamp Download PDFInfo
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- CN104235649A CN104235649A CN201410409183.2A CN201410409183A CN104235649A CN 104235649 A CN104235649 A CN 104235649A CN 201410409183 A CN201410409183 A CN 201410409183A CN 104235649 A CN104235649 A CN 104235649A
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Abstract
The invention provides an improved LED (light-emitting diode) lamp and belongs to the technical field of illumination; the problems of big size, big heating value, poor heat dissipation performance and short service life of the traditional LED lamp are solved by the improved LED lamp provided by the invention. The improved LED lamp comprises a lamp holder, an LED lamp panel, a base and a lampshade, wherein the lamp holder is in threaded connection with the top part of the base; the base is in the shape of a hollow cylinder, and the tail end of the base is fixedly provided with a radiator; two limit grooves are symmetrically formed in the inner wall of the base; the inner wall of the base is provided with two fixed legs extending to the tail end of the base, and the fixed legs are hollow; the radiator mainly comprises a radiator shell, a cooling fin substrate and a plurality of cooling fins, and the radiator shell, the cooling fin substrate and the cooling fins are respectively made of thermally conductive and insulating plastics. The improved LED lamp provided by the invention is small in size, small in heating value, high in heat conductivity coefficient of the radiator and strong in radiative heat dissipation capacity, not only is capable of rapidly conducting heat to the surface of the radiator but also is capable of rapidly dispersing heat radiation to the air, has a very good heat dissipation effect and is long in service life.
Description
Technical field
The invention belongs to lighting technical field, relate to a kind of improved LED lamp.
Background technology
Under the background that Present Global energy starved worry raises once again, economize energy is the major issue that we will face future, at lighting field, the indoor or outdoors lighting be widely used mostly is incandescent light bulb or fluorescent tube, but the electro-optical efficiency of these two kinds of products is all lower, and caloric value is large, physical life is shorter.And LED illumination technology is through development for many years and accumulation, show the energy-saving effect being better than incandescent light bulb or fluorescent tube.LED is as a kind of novel green light source product, and the application of its luminous product attracts the sight of common people, and must become following development trend.
LED illumination technology, through development for many years and accumulation, has shown outstanding energy-saving effect, and LED light source is as a kind of emerging semiconductor light-emitting elements, and have the advantages such as volume is little, the low and life-span of consuming energy is long, therefore the light fixture of LED lamp source is widely used.Present widely used LED lamp, its most of parts are fixed by metal screws, cause LED shortening in service life because metal easily conducts electricity and change parts inconvenience; When mounted driver module from LED-baseplate excessively close to, LED can be caused in use to occur short circuit phenomenon.
In addition, because the electric energy in input LED can not be converted into luminous energy completely, part will be converted into radiationless heat energy, and therefore, LED operationally has a large amount of heat energy and is collected at chip place, causes LED to occur the problem such as wave length shift, the lost of life.Therefore, radiator is self-evident for the effect of LED.But LED lamp heat sink structure is too focused on design of heat transfer and ignores heat loss through convection design at present, and therefore radiator is substantially by the metal that thermal conductivity is higher at present, as aluminium, copper etc. are made, very unreasonable.Because thermal conductivity is high can only improve heat transfer rate, and radiator heat-dissipation determines primarily of area of dissipation, structure, free convection and thermal-radiating ability, when the distance of heat from thermal source to spreader surface is less than 5mm, as long as thermal conductivity factor is greater than 5, its heat radiation is dominated primarily of convection current, and heat loss through conduction effect is then very little.Therefore, radiator is not only wanted can fast the surface of heat conduction to radiator, main or by convection current and radiation, heat is fallen apart in air, so the heat-sinking capability of metal heat sink is not very desirable, and metal heat sink needs through casting, die casting, polishing, polishing, nickel plating, the series of process such as nitrogenize, production cycle is long, cost is high, need in use to increase insulating cement or overlap to ensure safety, easily corrosion and fouling is there is in use procedure, affect the service life of LED, and the recycling of metal heat sink later stage is difficult, serious waste of resources.
In sum, for solving the deficiency in existing LED lamp structure and heat-sinking capability, need the improved LED lamp designing a kind of reasonable in design, perfect heat-dissipating.
Summary of the invention
The object of the invention is the problems referred to above existed for prior art, a kind of improved LED lamp of reasonable in design, perfect heat-dissipating is provided.
Object of the present invention realizes by following technical proposal: a kind of improved LED lamp, comprise lamp holder, LED lamp panel, base and lampshade, described lamp holder is threaded with base top, described base is hollow cylindrical and base end is installed with radiator, described base inner wall is provided with two limited impressions symmetrically, described base inner wall be provided with two to base end extend fixed leg and described fixed leg hollow arrange;
Described radiator comprises radiator casing in shaped hollow round table and some fin, described radiator casing includes radiator shell and radiator fin base, radiator shell is fixedly connected with radiator fin base, described some fin uniform weldings are on radiator fin base, radiator fin base offers two fixing holes, described LED lamp panel is in the form of annular discs and LED lamp panel offers two installing holes, also evenly distributed in LED lamp panel have LED lamp bar, described fixing hole, installing hole and fixed leg are arranged on same axis, screw runs through two installing holes by LED lamp panel respectively, the fixing hole of radiator is also threaded with fixed leg, radiator is connected with the openend buckle of lampshade away from the opening end of base, wherein, described radiator shell, radiator fin base and fin are made by moulded heat-conductive insulated plastics, and described moulded heat-conductive insulated plastics is become to be grouped into by following parts by weight: polyether-ether-ketone: 60-90 part, heat filling: 60-160 part, reinforcing fiber: 5-20 part, auxiliary agent: 3-10 part.
The radiator shell of LED of the present invention, radiator fin base and fin are made by moulded heat-conductive insulated plastics, and moulded heat-conductive insulated plastics of the present invention take thermal conductivity factor as 18W/ (mK), there is high strength, high-modulus, high temperature resistant, corrosion-resistant, dimensionally stable, easy processing, and fire retardant need not be added just there is the aromatic series based thermoplastic resin polyether-ether-ketone of good fire retardancy as base material, then heat filling is filled in the substrate, reinforcing fiber and auxiliary agent, improve plastics thermal conductivity to improve heat transfer rate, in addition the heat loss through radiation of plastics very capable (several times to tens times for Aluminium Radiator), with obtained mechanical property and the good radiator shell of heat dispersion, radiator fin base and fin, improve the heat-sinking capability of this LED.
In above-mentioned a kind of improved LED lamp, described heat filling comprises metal oxide and nitride, and described metal oxide and nitride ratio of weight and number are (0.5-1.5): 1; Described metal oxide is Al
2o
3, one or more in ZnO, MgO, described nitride is AlN, Si
3n
4, one or more in BN.The thermal conductivity of moulded heat-conductive insulated plastics of the present invention depends on consumption and the capacity of heat transmission of heat filling to a great extent.The thermal conductivity factor of the metal oxide that the present invention adds is between 30-40W/ (mK), the thermal conductivity factor of nitride is between 120-150W/ (mK), although the thermal conductivity of metal oxide is much lower compared with the thermal conductivity of nitride, but its price is lower, wide material sources, and there is excellent electrical insulation capability, and also research finds, when heat filling is greater than 100 with the ratio of matrix thermal conductivity factor, the thermal conductivity factor meaning continuing to improve heat filling is little.Therefore, the present invention using after above-mentioned metal oxide and nitride mix according to the above ratio as heat filling.In addition, in consumption, if heat filling consumption is less, though heat filling can be uniformly dispersed in base material, can not contact with each other and interact each other, material conducts heat rate improves little; Only have when heat filling consumption brings up to critical value, just can contact with each other and interact between heat filling, define similar netted or chain structure form in system, namely form heat conduction network chain, the thermal conductivity of material improves very fast; Certainly, if heat filling consumption exceedes certain value, the thermal conductivity increase of material tends towards stability or stops increasing, and the consumption continuing to increase heat filling loses meaning.Therefore, heat filling metal oxide and nitride mix by the present invention according to the above ratio, and control to add within the scope of the present invention in plastic substrate, can significantly improve the thermal conductivity of plastics, can comparatively reasonably control cost again.
In above-mentioned a kind of improved LED lamp, described heat filling is Powdered or fibrous; The particle diameter of described Powdered heat filling is 20-200nm, and the diameter of fibrous heat filling is 150-300nm, and draw ratio is (15-25): 1.The synergy that the thermal conductivity of moulded heat-conductive insulated plastics of the present invention also depends on the shape of heat filling, size and occurs between filler and filler, between filler and base material.Research finds, when heat filling is Powdered, fill nano level heat filling and improve more than 1.5 times compared to the thermal conductivity of filling micron-sized heat filling plastics, and when heat filling is threadiness, when filling diameter that the present invention limits, heat filling within the scope of draw ratio, the thermal conductivity of plastics is optimal.And, if when heat filling is filled with Powdered and fibrous mixing, all cooperative effect can be produced between filler and filler, between filler and plastic basis material, compared with the filler of single shape, the performances such as its thermal conductivity, mobility and intensity are all greatly improved, thus, the use of heat filling can be reduced, reduce excessive with the physical and mechanical properties being unlikely to plastics.Therefore, the present invention more preferred powder powder and fibrous heat filling used in combination.
In above-mentioned a kind of improved LED lamp, described reinforcing fiber is one or more in glass fibre, boron fibre, potassium titanate fibre, and the diameter of described reinforcing fiber is 500-800nm, and draw ratio is (10-18): 1.Although the thermal conductivity factor of reinforcing fiber is mostly in 5W/ (mK) left and right, more much lower than the thermal conductivity factor of the base material polyether-ether-ketone of the present invention moulded heat-conductive insulated plastics, not effect is improved to the thermal conductivity of plastics, but, the present invention adopts the fiber filled plastics of above-mentioned diameter, draw ratio, make mineral fibres energy with mix between heat filling more even, reduce the existence in gap, make plastics have the performances such as excellent creep resistant, stretching and bending strength, improve the physical and mechanical properties of plastics.
In above-mentioned a kind of improved LED lamp, described auxiliary agent comprises coupling agent, antioxidant, lubricant and age resistor, and ratio of weight and number is (1-1.5): 1:(0.8-1.2): (1.5-2).The Main Function of auxiliary agent is physical and mechanical properties, processing characteristics and stability in order to improve moulded heat-conductive insulated plastics.
Wherein, described coupling agent is the one in silane coupler, titanate coupling agent.Coupling agent is not only conducive to fiber and is scattered in plastic basis material uniformly, and can also improve interface performance, improves thermal conductivity.Especially silane coupler, its one end is combined in modes such as certain bond valences with the surface of heat filling, the other end can react with the group of base material polyether-ether-ketone, serves the effect of " bridge joint " heat filling and polyether-ether-ketone matrix, improves the thermal conductivity of moulded heat-conductive insulated plastics.Therefore, the present invention's preferred silane coupler further.
Described antioxidant is one or more in commercially available common antioxidant, as: antioxidant 1010, antioxidant 264, antioxidant DNP, antioxidant TNP.The Main Function of antioxidant is to suppress the oxygen in air to the oxygenolysis of moulded heat-conductive insulated plastics, improves the reservation that it heats rear physical and mechanical properties in aerobic air.
Described lubricant is one or more in stearic acid, stearate, paraffin.Lubricant of the present invention and base material have good compatibility, and it can reduce the cohesive force between base material interior molecules, improve the mobility of melt, improve the processing characteristics of plastics.
Described age resistor is one or more in commercially available common age resistor, as: one or more in anti-aging agent RD, antioxidant D, antioxidant 4010, antioxidant H.The Main Function that the present invention adds age resistor prevents or suppress the factors such as oxygen, heat, light to the destruction of moulded heat-conductive insulated plastics, extends the service life of LED of the present invention.
In above-mentioned a kind of improved LED lamp, described radiator shell, radiator fin base and fin are made by following steps:
S1, take raw material by the constituent of above-mentioned moulded heat-conductive insulated plastics and parts by weight thereof, and polyether-ether-ketone to be placed in vacuum drying chamber dry 5-8h at 100-140 DEG C;
S2, being mixed by the above-mentioned raw material taken and to add in the barrel of injection machine, injection machine feed zone temperature is 330-360 DEG C, and stage casing temperature is 400-430 DEG C, and back segment temperature is 380-425 DEG C, is heated to molten condition;
S3, by the raw material of above-mentioned molten condition through nozzle injection in the mould of radiator shell, radiator fin base and fin, through pressurize, cooling obtain radiator shell, radiator fin base and fin; Wherein, described mold temperature is 160-200 DEG C, and injection pressure is 80-100MPa, and inject time is 3-8s, and dwell pressure is 60-70MPa, and the dwell time is 20-50s, and cool time is 20-40s.
Because polyether-ether-ketone has certain hydroscopicity, therefore, need in step S1 of the present invention to carry out drying process to polyether-ether-ketone, mix with other raw material immediately after drying and put in the barrel of injection machine, prevent the moisture absorption of polyether-ether-ketone secondary.
Vitrification point due to polyether-ether-ketone is about 140 DEG C, and fusing point is about 340 DEG C, and the mechanical property of its moulded heat-conductive insulated plastics be re-dubbed depends on crystalline condition, and therefore processing temperature is particularly important on the impact of the crystalline condition of moulded heat-conductive insulated plastics.If temperature is too low, plastics melting weak effect, mobility is not good, cause plastics easily loose in forming process, and if temperature is too high, during melt cooling, the generation of nucleus is mainly homogeneous nucleation, crystalline rate is slow, easily generating large spherocrystal in plastics, increasing the fragility of plastics, because this reducing mechanical property.Therefore, hopper section temperature of the present invention is 330-360 DEG C, stage casing temperature is 400-430 DEG C, back segment temperature is 380-425 DEG C, to ensure fluidity of molten and injection mo(u)lding effect, ensure that the generation of nucleus is mainly heterogeneous nucleation, crystalline rate is fast, crystal is little and even, thus ensures the mechanical property of plastics.
Equally, mold temperature, injection pressure, the time, dwell pressure, time and cool time are all the key factors affecting moulded heat-conductive insulated plastics combination property, are controlled in above-mentioned scope, and the mechanical property of moulded heat-conductive insulated plastics is best relatively, and energy consumption is little, substandard products are few.
In above-mentioned a kind of improved LED lamp, the inwall of described radiator opening end offers some grooves, described lampshade openend inwall also offers and the some convex card divisions of interference fit corresponding with described draw-in groove, each card division can inlay card in groove.
In above-mentioned a kind of improved LED lamp, Driver Card is limit at chassis interior by described two limited impressions.
In above-mentioned a kind of improved LED lamp, described some fin are radially arranged on radiator fin base.
In above-mentioned a kind of improved LED lamp, described LED lamp panel, radiator are fixedly connected with base.
Compared with prior art, the present invention has following advantage:
1. stability in use of the present invention is high, and LED lamp panel can be avoided in use to occur short circuit phenomenon.
2. driver card of the present invention is embedded in the draw-in groove of power seat inwall, makes LED small and exquisite, enhances it and installs effect.
3. the appropriate design of radiator of the present invention and reflector, improves radiating effect; And radiator of the present invention is made up of moulded heat-conductive insulated plastics, thermal conductivity factor is high, and heat loss through radiation ability is strong, can not only fast the surface of heat conduction to radiator, and can also fast heat radiation be fallen apart in air, radiating effect be very good.
4. heat filling of the present invention adopts the metal oxide of difformity, size and nitride to mix, and plays enhancing cooperative effect during filling, the thermal conductivity factor of moulded heat-conductive insulated plastics is improved comparatively remarkable.
5. also added reinforcing fiber and auxiliary agent in moulded heat-conductive insulated plastics of the present invention, improve the thermal conductivity factor of moulded heat-conductive insulated plastics, processing characteristics, mechanical property and stability in use further.
6. radiator shell of the present invention, radiator fin base and fin preparation technology are simple, do not need will carry out metalworking technique as metal heat sink, with short production cycle, cost is low, and insulation, corrosion-resistant, cost recovery is low; And the present invention strictly controls preparation technology parameter, to ensure the combination property of goods, reduce energy consumption and defect rate.
Accompanying drawing explanation
Fig. 1 is a preferred embodiment of the present invention.
Fig. 2 is the explosive view of a preferred embodiment of the present invention.
Fig. 3 is the structural representation of lamp holder in a preferred embodiment of the present invention.
Fig. 4 is the structural representation of base in a preferred embodiment of the present invention.
Fig. 5 is the structural representation at another visual angle of base in a preferred embodiment of the present invention.
Fig. 6 is the structural representation of radiator in a preferred embodiment of the present invention.
Fig. 7 is the structural representation of LED lamp panel in a preferred embodiment of the present invention.
In figure, 10, body; 12, radiator; 121, radiator casing; 1211, radiator shell; 1212, radiator fin base; 12121, fixing hole; 122, groove; 13, lamp holder; 14, LED lamp panel; 141, installing hole; 15, lampshade; 151, card division; 16, base; 161, limited impression; 162, fixed leg; 20, fin; 30, LED lamp bar; 40, screw.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figures 1 to 7, this a kind of improved LED lamp comprises lamp holder 13, LED lamp panel 14 and lampshade 15, lamp holder 13 is connected with base 16 screw top, base 16 is in hollow cylindrical and base 16 end is installed with radiator 12, base 16 inwall is provided with two limited impressions 161 symmetrically, base 16 inwall be provided with two to base 16 end direction extend fixed leg 162 and fixed leg 162 hollow arrange, radiator 12 comprises the radiator casing 121 in shaped hollow round table, some fin 20, radiator casing 121 includes radiator shell 1211 and radiator fin base 1212, radiator shell 1211 is fixedly connected with radiator fin base 1212, some fin 20 uniform weldings are on radiator fin base 1212, radiator fin base 1212 offers two fixing holes 12121, LED lamp panel 14 is in the form of annular discs and LED lamp panel 14 offers two installing holes 141, also evenly distributed in LED lamp panel 14 have LED lamp bar 30, described fixing hole 12121, installing hole 141 and fixed leg 162 are arranged on same axis, two-screw 40 runs through two installing holes 141 by LED lamp panel 14 respectively, two fixing holes 12121 of radiator 12 are also threaded with fixed leg 162, radiator 12 is connected with the openend buckle of lampshade 15 away from the opening end of base 16.
Preferably, the inwall of radiator 12 opening end offers some grooves 122, lampshade 15 openend inwall also offers and the some convex card divisions 151 of interference fit corresponding with draw-in groove, each card division 151 can inlay card in groove 122.
Preferably, two limited impressions 161 are by inner at base 16 for Driver Card limit; This LED entirety is arranged in " small bell " shape, driver card is wherein embedded in two limited impressions 161 of base 116 inwall, take full advantage of the space in base 16, volume obviously reduces, this LED is small and exquisite, be applicable to the layout in any place and elegant in appearance, avoid drive plate in use to occur short circuit phenomenon;
Preferably, some fin 20 are radially arranged on fin 20 pedestal 1212.
Further preferably, LED lamp panel 14, radiator 12 are fixedly connected with base 16.
This improved LED lamp in an initial condition, lamp holder 13 spiral is connected on base 16, driver card is embedded in two limited impressions 161 in power seat 11, take full advantage of the space in base 16, decrease the space of LED, each card division 151 inlay card on lampshade 15 is in groove 122, lampshade 15 is fixedly connected with radiator 12, two-screw 40 runs through respectively by two installing holes 141 of LED lamp panel 14, two fixing holes 12121 of radiator 12 being threaded with fixed leg 162, and radiator 12 is connected with the openend buckle of lampshade 15 away from the opening end of base 16.
Preferably, radiator shell 1211, radiator fin base 1212 and fin 20 are made by moulded heat-conductive insulated plastics, and moulded heat-conductive insulated plastics is become to be grouped into by following parts by weight: polyether-ether-ketone: 60-90 part, heat filling: 80-180 part, mineral fibres: 5-20 part, auxiliary agent: 3-10 part.
Table 1: the constituent of embodiment of the present invention 1-5 moulded heat-conductive insulated plastics and parts by weight thereof
Embodiment 1:
Raw material is taken by the constituent of embodiment in table 11 moulded heat-conductive insulated plastics and parts by weight thereof; Wherein, heat filling metal oxide is Powdered, and particle diameter is within the scope of 20-80nm; Nitride is threadiness, and diameter is 150-200nm, and draw ratio is 15:1; The diameter of reinforcing fiber is 500-600nm, and draw ratio is 10:1.Then polyether-ether-ketone to be placed in vacuum drying chamber dry 8h at 100 DEG C.
Mixed in mixing roll by above-mentioned raw materials and add in the barrel of injection machine, injection machine feed zone temperature is 330 DEG C, and stage casing temperature is 400 DEG C, and back segment temperature is 380 DEG C, is heated to molten condition.Then by the raw material of molten condition through nozzle injection in the mould of radiator shell, radiator fin base and fin, through pressurize, cooling obtain radiator shell, radiator fin base and fin; Wherein, mold temperature is 160 DEG C, and injection pressure is 80MPa, and inject time is 8s, and dwell pressure is 60MPa, and the dwell time is 20s, and cool time is 20s.
Embodiment 2:
Raw material is taken by the constituent of embodiment in table 12 moulded heat-conductive insulated plastics and parts by weight thereof; Wherein, heat filling metal oxide is Powdered, and particle diameter is within the scope of 40-100nm; Nitride is also Powdered, and particle diameter is within the scope of 100-180nm; The diameter of reinforcing fiber is 600-700nm, and draw ratio is 12:1.Then polyether-ether-ketone to be placed in vacuum drying chamber dry 7h at 110 DEG C.
Mixed in mixing roll by above-mentioned raw materials and add in the barrel of injection machine, injection machine feed zone temperature is 340 DEG C, and stage casing temperature is 410 DEG C, and back segment temperature is 390 DEG C, is heated to molten condition.Then by the raw material of molten condition through nozzle injection in the mould of radiator shell, radiator fin base and fin, through pressurize, cooling obtain radiator shell, radiator fin base and fin; Wherein, described mold temperature is 180 DEG C, and injection pressure is 85MPa, and inject time is 7s, and dwell pressure is 62MPa, and the dwell time is 25s, and cool time is 25s.
Embodiment 3:
Raw material is taken by the constituent of embodiment in table 13 moulded heat-conductive insulated plastics and parts by weight thereof; Wherein, heat filling metal oxide is threadiness, and diameter is 180-230nm, and draw ratio is 18:1; Nitride is also threadiness, and diameter is 250-300nm, and draw ratio is 23:1; The diameter of reinforcing fiber is 550-650nm, and draw ratio is 15:1.Then polyether-ether-ketone to be placed in vacuum drying chamber dry 6h at 120 DEG C.
Mixed in mixing roll by above-mentioned raw materials and add in the barrel of injection machine, injection machine feed zone temperature is 350 DEG C, and stage casing temperature is 415 DEG C, and back segment temperature is 395 DEG C, is heated to molten condition.Then by the raw material of molten condition through nozzle injection in the mould of radiator shell, radiator fin base and fin, through pressurize, cooling obtain radiator shell, radiator fin base and fin; Wherein, described mold temperature is 185 DEG C, and injection pressure is 90MPa, and inject time is 6s, and dwell pressure is 65MPa, and the dwell time is 30s, and cool time is 30s.
Embodiment 4:
Raw material is taken by the constituent of embodiment in table 14 moulded heat-conductive insulated plastics and parts by weight thereof; Wherein, heat filling metal oxide is Powdered, and particle diameter is within the scope of 80-150nm; Nitride is threadiness, and diameter is 180-250nm, and draw ratio is 20:1; The diameter of reinforcing fiber is 600-700nm, and draw ratio is 15:1.Then polyether-ether-ketone to be placed in vacuum drying chamber dry 6h at 125 DEG C.
Mixed in mixing roll by above-mentioned raw materials and add in the barrel of injection machine, injection machine feed zone temperature is 345 DEG C, and stage casing temperature is 420 DEG C, and back segment temperature is 400 DEG C, is heated to molten condition.Then by the raw material of molten condition through nozzle injection in the mould of radiator shell, radiator fin base and fin, through pressurize, cooling obtain radiator shell, radiator fin base and fin; Wherein, described mold temperature is 190 DEG C, and injection pressure is 95MPa, and inject time is 5s, and dwell pressure is 68MPa, and the dwell time is 40s, and cool time is 30s.
Embodiment 5:
Raw material is taken by the constituent of embodiment in table 15 moulded heat-conductive insulated plastics and parts by weight thereof; Wherein, heat filling metal oxide is threadiness, and diameter is 180-250nm, and draw ratio is 20:1; Nitride is Powdered, and particle diameter is within the scope of 80-150nm; The diameter of reinforcing fiber is 700-800nm, and draw ratio is 15:1.Then polyether-ether-ketone to be placed in vacuum drying chamber dry 5h at 130 DEG C.
Mixed in mixing roll by above-mentioned raw materials and add in the barrel of injection machine, injection machine feed zone temperature is 350 DEG C, and stage casing temperature is 425 DEG C, and back segment temperature is 415 DEG C, is heated to molten condition.Then by the raw material of molten condition through nozzle injection in the mould of radiator shell, radiator fin base and fin, through pressurize, cooling obtain radiator shell, radiator fin base and fin; Wherein, described mold temperature is 195 DEG C, and injection pressure is 100MPa, and inject time is 3s, and dwell pressure is 70MPa, and the dwell time is 50s, and cool time is 40s.
Comparative example 1:
Based on embodiment 2, by within the scope of the particle diameter of pulverous nitride also control 40-100nm, other condition is all constant, obtained radiator shell, radiator fin base and fin.
Comparative example 2:
Based on embodiment 3, by within the scope of the diameter of fibrous nitride also control 180-230nm, draw ratio is 18:1, and other condition is all constant, obtained radiator shell, radiator fin base and fin.
Respectively above-described embodiment is fixedly connected with radiator fin base with obtained radiator shell in comparative example, and by fin uniform welding on radiator fin base, obtained radiator, and radiator is carried out performance test, test result is as shown in table 2.
Table 2: radiator performance test result
As known from Table 2, the radiator good mechanical properties that the moulded heat-conductive insulated plastics that the present invention fills a prescription is made, anti-flammability and insulating properties all meet the requirements, and thermal conductivity factor improves comparatively obvious.From embodiment 2 and embodiment 3, when heat filling is same shape, the thermal conductivity factor more difform (as: embodiment 4 and embodiment 5) of obtained radiator is much lower; From comparative example 1 and comparative example 2, heat filling be same shape and size is all identical time, the thermal conductivity factor of its goods is lower compared with (as embodiment 2 and the embodiment 3) of different size.Therefore, the thermal conductivity factor of the Powdered and fibrous heat filling obtained radiator used in combination of different size is ideal.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (10)
1. an improved LED lamp, comprise lamp holder, LED lamp panel, base and lampshade, it is characterized in that, described lamp holder is threaded with base top, described base is hollow cylindrical and base end is installed with radiator, described base inner wall is provided with two limited impressions symmetrically, described base inner wall be provided with two to base end extend fixed leg and described fixed leg hollow arrange;
Described radiator comprises radiator casing in shaped hollow round table and some fin, described radiator casing includes radiator shell and radiator fin base, radiator shell is fixedly connected with radiator fin base, described some fin uniform weldings are on radiator fin base, radiator fin base offers two fixing holes, described LED lamp panel is in the form of annular discs and LED lamp panel offers two installing holes, also evenly distributed in LED lamp panel have LED lamp bar, described fixing hole, installing hole and fixed leg are arranged on same axis, screw runs through two installing holes by LED lamp panel respectively, the fixing hole of radiator is also threaded with fixed leg, radiator is connected with the openend buckle of lampshade away from the opening end of base, wherein, described radiator shell, radiator fin base and fin are made by moulded heat-conductive insulated plastics, and described moulded heat-conductive insulated plastics is become to be grouped into by following parts by weight: polyether-ether-ketone: 60-90 part, heat filling: 60-160 part, reinforcing fiber: 5-20 part, auxiliary agent: 3-10 part.
2. a kind of improved LED lamp according to claim 1, is characterized in that, described heat filling comprises metal oxide and nitride, and described metal oxide and nitride ratio of weight and number are (0.5-1.5): 1; Described metal oxide is Al
2o
3, one or more in ZnO, MgO, described nitride is AlN, Si
3n
4, one or more in BN.
3. a kind of improved LED lamp according to claim 1 and 2, is characterized in that, described heat filling is Powdered or fibrous; The particle diameter of described Powdered heat filling is 20-200nm, and the diameter of fibrous heat filling is 150-300nm, and draw ratio is (15-25): 1.
4. a kind of improved LED lamp according to claim 1, it is characterized in that, described reinforcing fiber is one or more in glass fibre, boron fibre, potassium titanate fibre, and the diameter of described reinforcing fiber is 500-800nm, and draw ratio is (10-18): 1.
5. a kind of improved LED lamp according to claim 1, it is characterized in that, described auxiliary agent comprises coupling agent, antioxidant, lubricant and age resistor, and ratio of weight and number is (1-1.5): 1:(0.8-1.2): (1.5-2).
6. a kind of improved LED lamp according to claim 1, is characterized in that, described radiator shell, radiator fin base and fin are made by following steps:
S1, take raw material by the constituent of moulded heat-conductive insulated plastics according to claim 1 and parts by weight thereof, and polyether-ether-ketone to be placed in vacuum drying chamber dry 5-8h at 100-140 DEG C;
S2, being mixed by the above-mentioned raw material taken and to add in the barrel of injection machine, injection machine feed zone temperature is 330-360 DEG C, and stage casing temperature is 400-430 DEG C, and back segment temperature is 380-425 DEG C, is heated to molten condition;
S3, by the raw material of above-mentioned molten condition through nozzle injection in the mould of radiator shell, radiator fin base and fin, through pressurize, cooling obtain radiator shell, radiator fin base and fin; Wherein, described mold temperature is 160-200 DEG C, and injection pressure is 80-100MPa, and inject time is 3-8s, and dwell pressure is 60-70MPa, and the dwell time is 20-50s, and cool time is 20-40s.
7. a kind of improved LED lamp according to claim 1, it is characterized in that, the inwall of described radiator opening end offers some grooves, described lampshade openend inwall also offers and the some convex card divisions of interference fit corresponding with described draw-in groove, each card division can inlay card in groove.
8. a kind of improved LED lamp according to claim 1, is characterized in that, Driver Card is limit at chassis interior by described two limited impressions.
9. a kind of improved LED lamp according to claim 1, is characterized in that, described some fin are radially arranged on radiator fin base.
10. a kind of improved LED lamp according to claim 1, is characterized in that, described LED lamp panel, radiator are fixedly connected with base.
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| CN201410409183.2A CN104235649A (en) | 2014-08-19 | 2014-08-19 | Improved LED (light-emitting diode) lamp |
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| CN201410409183.2A CN104235649A (en) | 2014-08-19 | 2014-08-19 | Improved LED (light-emitting diode) lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221964A (en) * | 2015-10-20 | 2016-01-06 | 桂林风范装饰工程有限公司 | A kind of LED that can automatically lower the temperature |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101490472A (en) * | 2006-07-11 | 2009-07-22 | 帝斯曼知识产权资产管理有限公司 | Lamp sockets |
| CN101523113A (en) * | 2006-10-12 | 2009-09-02 | 帝斯曼知识产权资产管理有限公司 | Lighting device |
| CN101977976A (en) * | 2008-03-20 | 2011-02-16 | 帝斯曼知识产权资产管理有限公司 | Heatsinks of thermally conductive plastic materials |
| US20130051035A1 (en) * | 2011-08-31 | 2013-02-28 | Hankyu CHO | Lighting apparatus |
| CN102980060A (en) * | 2011-09-02 | 2013-03-20 | 三星电子株式会社 | Light-emitting diode lamp |
| CN202852545U (en) * | 2012-10-22 | 2013-04-03 | 东南大学 | Light-emitting diode (LED) lamp bulb |
| CN103104828A (en) * | 2011-11-11 | 2013-05-15 | 赵依军 | Light emitting diode (LED) lamp wick and lighting device with LED as light source |
| WO2013109161A1 (en) * | 2012-01-20 | 2013-07-25 | Общество с ограниченной ответственностью "ДиС ПЛЮС" | General-purpose light-emitting diode lamp |
-
2014
- 2014-08-19 CN CN201410409183.2A patent/CN104235649A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101490472A (en) * | 2006-07-11 | 2009-07-22 | 帝斯曼知识产权资产管理有限公司 | Lamp sockets |
| CN101523113A (en) * | 2006-10-12 | 2009-09-02 | 帝斯曼知识产权资产管理有限公司 | Lighting device |
| CN101977976A (en) * | 2008-03-20 | 2011-02-16 | 帝斯曼知识产权资产管理有限公司 | Heatsinks of thermally conductive plastic materials |
| US20130051035A1 (en) * | 2011-08-31 | 2013-02-28 | Hankyu CHO | Lighting apparatus |
| CN102980060A (en) * | 2011-09-02 | 2013-03-20 | 三星电子株式会社 | Light-emitting diode lamp |
| CN103104828A (en) * | 2011-11-11 | 2013-05-15 | 赵依军 | Light emitting diode (LED) lamp wick and lighting device with LED as light source |
| WO2013109161A1 (en) * | 2012-01-20 | 2013-07-25 | Общество с ограниченной ответственностью "ДиС ПЛЮС" | General-purpose light-emitting diode lamp |
| CN202852545U (en) * | 2012-10-22 | 2013-04-03 | 东南大学 | Light-emitting diode (LED) lamp bulb |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221964A (en) * | 2015-10-20 | 2016-01-06 | 桂林风范装饰工程有限公司 | A kind of LED that can automatically lower the temperature |
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