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37results about How to "Reduce light decay speed" patented technology
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Heat radiation device for loop heat pipe with enhanced evaporation section used in LED lamp
InactiveCN101608788AImprove luminous efficiencyReduce light decay speedPoint-like light sourceSemiconductor/solid-state device detailsRefluxMicro-loop heat pipe
The invention discloses a heat radiation device for a loop heat pipe with an enhanced evaporation section used in an LED lamp. The heat radiation device comprises: a heat pipe, a radiating fin and a working liquid. The heat pipe is a loop pipe with a sealed cavity, comprising: an enhanced evaporation section, a reflux section, a steam section, a compensation chamber and a condensing section; the enhanced evaporation section is arranged at the back of a heat source of the LED lamp; the loop pipe is vacuumed properly, internally provided with a wick structure and filled with a proper amount of working liquid; and the radiating fin is arranged on the condensing section. The heat radiation device has the advantages of reasonable and compact structure, easy production, high heat conduction efficiency and high heat radiation speed. The enhanced evaporation section is contacted with the heat source surface directly and sufficiently, therefore, the heat radiation device can effectively reduce the temperature of the LED modules, solve the heat radiation problem of large-power LEDs, improve the light emitting efficiency of LEDs, reduce the light degradation speed of LEDs and prolong the service life of LEDs. Simultaneously, the heat radiation device can reduce the volume and the weight of LED lamps and improve the adaptability and the use range of the LED lamps.
Owner:史杰
High-efficiency heat radiating LED (light emitting diode) lamp and manufacture method thereof
InactiveCN101871627AIncrease heatReduce light decay speedPoint-like light sourceSemiconductor/solid-state device detailsThermodynamicsEngineering
The invention discloses a manufacture method of a high-efficiency heat radiating LED lamp, which comprises the following steps: (1) manufacturing a strip-shaped PCB welding board, and evenly welding a plurality of LED lamps on the PCB welding board, wherein through holes are arranged on the PCB welding board below the LED lamps; (2) manufacturing a strip-shaped graphite radiator by adopting graphite and evenly arranging a plurality of heat conduction rivets on the graphite radiator, wherein the heads of the heat conduction rivets are projected on the graphite radiator, and the space between the two adjacent heat conduction rivets is equal to that between the two adjacent LED lamps on the PCB welding board; and (3) coating heat conduction paste on the upper surface of the graphite radiator and the tops of the heat conduction rivets, and fixing the graphite radiator with the upper surface upward to the lower surface of the PCB welding board, wherein the tops of the heat conduction rivets and the bottoms of the LED lamps are in contact to form a high-efficiency heat radiating structure. The invention also provides the high-efficiency heat radiating LED lamp manufactured by the method.
Owner:戴建国
Metal baseplate provided with LED and manufacturing method thereof
InactiveCN101887942AImprove insulation performanceImprove thermal conductivitySemiconductor devicesCarbon filmDiamond-like carbon
The invention relates to a metal baseplate provided with an LED and a manufacturing method thereof, relating to the technical field of circuit board base materials, and in particular being applied to the technical field of production of a large-power LED metal baseplate. The manufacturing method comprises the following steps: successively plating a diamond-like carbon (DLC) coating on a metal plate; sputtering a metal layer capable of being carbonized on the outer surface of the diamond-like carbon coating; sputtering a thin copper layer outside the metal layer capable of being carbonized; and electroplating a thickened copper layer outside the thin copper layer and then carrying out circuit carving outside the thickened copper layer. The formed aluminium baseplate has excellent insulativity, and the adhesive strength of the diamond-like carbon coating and the baseplate is up to 20kg / cm<2>. The aluminum baseplate has the heat conductivity larger than 10W / mk which is more than twice of that of the traditional insulating layer containing glue, is particularly suitable for the application of the large power LED and can effectively reduce the optical attenuation speed.
Owner:江苏鑫钻新材料科技有限公司
Light-emitting diode (LED) tunnel lamp
InactiveCN103017009AHigh strengthReduce light decay speedPoint-like light sourceLighting heating/cooling arrangementsJunction temperatureEngineering
The invention relates to a light-emitting diode (LED) tunnel lamp, which comprises LED lamp caps, a front cover, a radiator and a tail cover. The LED lamp caps respectively consist of a substrate, a plurality of single chip LEDs, a lamp cap seat and a lens. The radiator consists of two eudipleural lambdoidal hollow cylindrical objects and fins respectively arranged on convex surfaces of the hollow cylindrical objects; the LED lamp caps are respectively arranged on lambdoidal angular surfaces of nearly symmetric axis on concave surfaces of the hollow cylindrical objects of the radiator; and the front cover and the tail cover are fixedly arranged on the radiator through screws. The LED tunnel lamp has the following advantages: 1, under the action of an open illumination chamber, light distribution of the LED lamp caps is even, and the light intensity is enhanced; 2, natural ventilation channels are additionally arranged on the radiator, and therefore, power consumption-free heat dissipation is realized, the junction temperature of the LED tunnel lamp is reduced, and the light decay speed of the LED tunnel lamp is reduced; and 3, a shell-type structure of the front cover and a shell-type structure of the tail cover are communicated with the outside through an upper space and a lower space, and therefore, the LED tunnel lamp is ventilated without accumulated water, the working environment of the LED tunnel lamp is improved, and the service life of the LED tunnel lamp is greatly prolonged.
Owner:谢金崇
Heat radiation device of heat pipe of loop of temperature-equalization tank with high heat conductivity
InactiveCN101634533AImprove luminous efficiencyReduce light decay speedPoint-like light sourceLighting heating/cooling arrangementsEvaporationEngineering
The invention discloses a heat radiation device of a heat pipe of a loop of a temperature-equalization tank with high heat conductivity, which can be applied to the field of the high-power illumination of LEDs or the field of the application of an electronic element. The device comprises a heat pipe, heat radiation fins, a temperature-equalization tank with high heat conductivity, liquid with high heat conductivity and the like, wherein an evaporation section of the heat pipe passes through the inside of the temperature-equalization tank with high heat conductivity and is connected with the temperature-equalization tank with high heat conductivity into a whole by a welding mode, a sealing cavity is formed between the temperature-equalization tank with high heat conductivity and the evaporation section, the liquid with high heat conductivity is filled into the sealing cavity, the heat radiation fins are arranged on a condensation section outside the temperature-equalization tank with high heat conductivity, an internal cavity of the heat pipe is pumped into proper vacuum, a capillary structure is arranged in the pipe, and an amount of working liquid is filled into the pipe. The invention has reasonable and compact structure, easy production and manufacture, high efficiency of heat conduction and high speed of heat radiation, is used for the heat radiation of an LED lamp, effectively lowers the temperature of an LED module, enhances the luminous efficiency of the LED, lowers the light enervation speed of the LED and prolongs the service life of the LED.
Owner:史杰
Preparation method of LED light source and preparation method of LED light-emitting module
ActiveCN104485327AShorten the timeImprove light distribution designPoint-like light sourceSolid-state devicesFluorescenceAdhesive
The invention discloses a preparation method of an LED light source and a preparation method of an LED light-emitting module. The preparation method of the LED light source comprises the following steps: bonding an LED chip on a PET film or a PTFE film with UV adhesive on the surface, and carrying out ultraviolet irradiation for initial curing; preparing an insulation rubber layer on the LED chip; then preparing a fluorescent colloid layer; using UV light to irradiate the PET film or the PTFE film to enable the UV adhesive on the surface to lose viscidity, and taking down the LED chip after encapsulation to obtain the LED light source. The LED light sources are arranged in a series-parallel connection mode, and are welded on a base plate, so that the LED light-emitting module is obtained. According to the preparation methods, in the aspect of material composition, supports and money are saved, the reliability is improved while the cost is reduced, the material cost can be reduced, the light-emitting angle is increased, the processing convenience is increased, and the production link is simplified. The position of fluorescent powder is far away from the chip through the insulation rubber layer, so that the thermal quenching and thermal efficiency of the fluorescent powder are reduced, and the lighting effect and long-term lumen maintenance are improved.
Owner:HANGZHOU HANGKE OPTOELECTRONICS
Thermal-drive natural-circulation lamp pole cooling system for LED streetlamp
InactiveCN102606996AReduce the temperatureReduce light decay speedPoint-like light sourceLighting heating/cooling arrangementsUltrasound attenuationEngineering
The invention discloses a thermal-drive natural-circulation lamp pole cooling system for an LED streetlamp, which comprises an LED streetlamp body, a vertical lamp pole, a steam tube and a return tube. The steam tube and the return tube are communicated with the upper end and the lower end of the lamp pole respectively. The other end of the return tube and the other end of the steam tube are respectively communicated with the LED streetlamp body. A partition is disposed inside the LED streetlamp body. An evaporation chamber is reserved below the partition and filled with liquid medium. An LED chip substrate is disposed at the bottom of the evaporation chamber, an LED chip is disposed at the bottom end of the LED chip substrate, and the return tube is communicated with the evaporation chamber. The steam tube is connected to the upper end of the LED streetlamp body. A drain tube is further connected above the partition inside the LED streetlamp body. The other end of the drain tube is communicated with the lower end of the lamp pole. The thermal-drive natural-circulation lamp pole cooling system for the LED streetlamp is reasonable and compact in structure, high in heat conducting efficiency, fast in cooling speed and capable of effectively cooling an LED module, the cooling problem of high-power LEDs is solved, the speed of light attenuation is decreased, and the service life of the LED lamps is prolonged.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
LED street lamp intelligent control system
ActiveCN105208701AExtend your lifeHigh light efficiencyElectric light circuit arrangementEnergy saving control techniquesPower flowRemote control
The invention discloses an LED street lamp intelligent control system. The LED street lamp intelligent control system comprises N LED lamps connected in parallel and a remote control device. Each LED lamp is internally provided with an LED light source, a branch controller, a temperature sensor and a branch voltage adjusting device. The branch control is connected with the temperature sensor and the branch voltage adjusting device. The temperature sensor is used for detecting the temperature in the LED lamp. The branch voltage adjusting device is used for adjusting an input voltage of the LED lamp. The remote control device comprises a total control and a total voltage adjusting device. The total controller is in communication with the branch controller in each LED lamp. The total controller is connected with the total voltage adjusting device and a time relay. The total voltage adjusting device is used for adjusting an output voltage of the total controller. According to the invention, the long service lifetime and the high light efficiency of each LED light source are ensured, the working current of each LED light source is gradually lowered in work, and the working power of each LED light source is gradually lowered, so that the working temperature of each LED lamp is lowered, and the light decay speed of each LED light source is reduced.
Owner:安徽安发特交通工程集团有限公司
Light attenuation compensation method based on knowledge base
ActiveCN110677958AReduce light decay speedBalanced long-lasting light effectElectrical apparatusEnergy saving control techniquesEngineeringLED lamp
The invention relates to dimming control of an LED lamp and light attenuation compensation control of the LED lamp, in particular to an LED light attenuation compensation method based on a knowledge base. Brightness compensation control parameters of an LED lamp are calculated and set by a program in a controller according to a rule of the knowledge base, so that the LED lamp can keep stable illumination brightness output for a long time. The invention provides an LED lamp with a light-emitting allowance reserved. A knowledge base is constructed by utilizing an artificial intelligence technology, all operation data of the LED are monitored in real time, and the amount of light attenuation compensation is determined through a certain algorithm according to the operation data and the knowledge base, so that the illumination of the LED can be stably outputted within a long time, and the light attenuation speed of the LED lamp is reduced on the whole. The method has the advantages that thelight attenuation speed of the whole LED lamp can be well reduced by reserving the small cost of a certain light-emitting allowance when the LED lamp is produced, the service life is prolonged on thewhole, and the maintenance pressure of the LED lamp is reduced.
Owner:上海绿浦环保科技股份有限公司
Heat-dissipating method of LED (Light-Emitting Diode) heat-dissipating module and LED heat-dissipating module
ActiveCN102434864BSpeed up distributionExtended service lifePoint-like light sourceLighting heating/cooling arrangementsEngineeringHeat sink
The invention discloses a heat-dissipating method of an LED (Light-Emitting Diode) heat-dissipating module. The LED heat-dissipating module comprises a heat-dissipating module, an LED module, an optical lens module and a cover plate which are laminated in sequence. By adopting the method provided by the invention, heat of an LED lamp can be dissipated, so that the light decay speed is lowered, and the service life is prolonged. The invention further discloses an LED heat-dissipating module for implanting the method. The LED heat-dissipating module has a reasonable structure, is made of a preferred aluminum material, and has light weight; moreover, radiating fins are provided with strip-shaped vertical bumps which can be used for enhancing the structural strength, increasing the heat-dissipating area and improving the heat-dissipating effect; furthermore, two adjacent radiating fins are fixed together through a fixing pin, so that high stability is achieved; and a ventilation groove isformed between every two adjacent radiating fins for ventilating, so that heat of the LED lamp can be dissipated quickly, the light decay speed is lowered, and the service life is prolonged greatly.
Owner:DONGGUAN PERFECT SCI & TECH
Heat-dissipating method of LED (Light-Emitting Diode) heat-dissipating module and LED heat-dissipating module
ActiveCN102434864ASpeed up distributionExtended service lifePoint-like light sourceLighting heating/cooling arrangementsEngineeringHeat sink
The invention discloses a heat-dissipating method of an LED (Light-Emitting Diode) heat-dissipating module. The LED heat-dissipating module comprises a heat-dissipating module, an LED module, an optical lens module and a cover plate which are laminated in sequence. By adopting the method provided by the invention, heat of an LED lamp can be dissipated, so that the light decay speed is lowered, and the service life is prolonged. The invention further discloses an LED heat-dissipating module for implanting the method. The LED heat-dissipating module has a reasonable structure, is made of a preferred aluminum material, and has light weight; moreover, radiating fins are provided with strip-shaped vertical bumps which can be used for enhancing the structural strength, increasing the heat-dissipating area and improving the heat-dissipating effect; furthermore, two adjacent radiating fins are fixed together through a fixing pin, so that high stability is achieved; and a ventilation groove isformed between every two adjacent radiating fins for ventilating, so that heat of the LED lamp can be dissipated quickly, the light decay speed is lowered, and the service life is prolonged greatly.
Owner:DONGGUAN PERFECT SCI & TECH
Radiating method of high-power LED radiator and radiator for implementing same
ActiveCN101576242BSpeed up distributionExtended service lifePoint-like light sourceElongate light sourcesEngineeringLED lamp
Owner:DONGGUAN PERFECT SCI & TECH
Water-circulating cooling shell for LED explosion-proof lamp
InactiveCN104197293ADissipate in timeReduce the temperaturePoint-like light sourceLighting heating/cooling arrangementsWater storageEngineering
The invention relates to a water-circulating cooling shell for an LED explosion-proof lamp. The water-circulating cooling shell comprises an LED light source cavity, a large water storage chamber, a small water storage chamber and a water storage chamber cover, the LED light source cavity is fixed at the center of the shell through bolts, the small water storage chamber is arranged on the outer side of the LED light source cavity, the large water storage chamber is arranged on the outer side of the small water storage chamber, and the large water storage chamber and the small water storage chamber are connected through a spiral stainless steel tube. The water-circulating cooling shell is power saving and environmental friendly, temperature of LED light sources can be effectively lowered, light failure speed can be slowed, and service life of the LED light sources can be guaranteed.
Owner:HEFEI HUICAI ELECTRONICS TECH
Pyroelectric infrared induction type LED (Light-Emitting Diode) lamp
InactiveCN106482002AIngenious structural designEasy to disassemble, assemble, repair and replaceElectrical apparatusElectric circuit arrangementsVoltage converterElectricity
The invention relates to a pyroelectric infrared induction type LED (Light-Emitting Diode) lamp. The pyroelectric infrared induction type LED lamp comprises a heat-conducting aluminium base, a horn-shaped reflecting cover, a U-shaped light diffusing cover, an LED integrated package light source, a pyroelectric infrared sensor, an infrared induction controller and a driving power supply; the LED integrated package light source is arranged at a front-end boss of the heat conducting base; the driving power supply and the infrared induction controller are both arranged in a cavity; the front-end boss of the heat conducting base is in threaded connection with the horn-shaped reflecting cover; the light diffusing cover is arranged on the front-end boss and covers the LED integrated package light source; the pyroelectric infrared sensor is arranged in the centre of the front end of the light diffusing cover in an exposed manner; the LED integrated package light source is connected with an output end of the infrared induction controller; the pyroelectric infrared sensor is connected with an input end of the infrared induction controller; the infrared induction controller is electrically connected with the driving power supply; and the infrared induction controller comprises a voltage converter and an infrared induction IC (Integrated Circuit) chip. According to the pyroelectric infrared induction type LED lamp, safe, energy-saving, environment-friendly and user-friendly lighting functions of turning on the lamp when a person comes and turning off the lamp when the person leaves can be realized.
Owner:NANJING ROUTER SOFTWARE
Thermal-drive natural-circulation lamp pole cooling system for LED streetlamp
InactiveCN102606996BReduce the temperatureReduce light decay speedPoint-like light sourceLighting heating/cooling arrangementsUltrasound attenuationLiquid medium
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
A highly-antirust aluminum-based composite heat dissipation material used for LEDs
InactiveCN104164593AGood thermal conductivity and insulation propertiesGood sintering effectPoint-like light sourceLighting heating/cooling arrangementsPyrophosphateAndalusite
The invention relates to the lamp heat dissipation materials, and particularly relates to a highly-antirust aluminum-based composite heat dissipation material used for LEDs and a producing method thereof. The heat dissipation material is prepared from following raw materials by weight: 60-65 parts of aluminum, 10-11 parts of iron, 5-8 parts of magnesium nitride, 1-1.5 parts of stannous pyrophosphate, 1-2 parts of zinc phosphate, 0.4-0.5 part of calcium phosphate, 0.1-0.2 part of strontium phosphate, 8-10 parts of clay, 12-15 parts of quartz sand, 10-12 parts of silicon carbide, 6-8 parts of aluminum-rich andalusite and 4-5 parts of auxiliary agents. The heat dissipation material integrates advantages of the aluminum, the iron, the magnesium nitride, the clay, the quartz sand, the silicon carbide, and the like and has good heat conducting and thermal insulation properties. The raw materials are fully mixed. Sintering effects are good. The prepared heat dissipation material has characteristics of compact structure, bright and clean surfaces, whether tolerance, water resistance, capability of being not liable to rust and durable in use, good heat dissipation capability, capability of protecting LED lamps and delaying the luminous decaying speed, good using properties and long service lifetime.
Owner:MAANSHAN WANXIN CASTING
Radiating method of LED radiator and radiator for implementing same
ActiveCN101576241BSpeed up distributionExtended service lifePoint-like light sourceElongate light sourcesEngineeringSilicone grease
Owner:DONGGUAN PERFECT SCI & TECH
LED (Light-emitting Diode) spotlight
PendingCN107906424AIncrease light intensityReduce light decay speedLighting heating/cooling arrangementsSemiconductor devices for light sourcesEngineeringHeat sink
The invention discloses an LED (Light-emitting Diode) spotlight, which comprises a heat radiation part with a through hole, a connecting plate and a light-emitting module. The heat radiation part is flatly paved on a surface of the connecting plate; the other surface of the connecting plate is connected with the light-emitting module so as to conduct heat produced by the light-emitting module to the heat radiation part; and an outer side face of the heat radiation part is in a zigzag shape. The heat produced by the light-emitting module in the LED spotlight can be firstly conducted to the heatradiation part through the connecting plate, the transferred heat can be then radiated by utilizing the heat radiation part, the heat radiation part is flatly paved on the surface of the connecting plate, the through hole is formed in the heat radiation part, and the outer side face of the heat radiation part is in the zigzag shape, so that air is conveniently circulated, and a heat radiation area between the light-emitting module and air can be increased; and compared with a traditional light-emitting module with multiple heat radiation fins being directly arranged perpendicularly in the LEDspotlight, a heat radiation effect is better, and the heat radiation efficiency is improved.
Owner:GUANGDONG UNIV OF TECH
Gold halogen PAR lamp
InactiveCN101709848AReduce weightImprove cooling efficiencyLighting heating/cooling arrangementsReflectorsHalogenLow speed
The invention discloses a gold halogen PAR lamp which comprises a lamp cap, a light reflecting lamp cup and a gold halogen lamp, wherein the gold halogen lamp is arranged in a cup body of the light reflecting lamp cup, and the light reflecting lamp cup is an aluminum cup body. The upper part and the lower part of the light reflecting lamp cup are respectively provided with a vent hole. The gold halogen PAR lamp has the advantages of high use safety, stable color temperature, low speed of light attenuation, long service life and the like, and the phenomenon of light reflecting film glass can not occur within the service life.
Owner:朱应根
Light-emitting diode (LED) flood lamp
InactiveCN103017010AHigh strengthUniform light distributionPoint-like light sourceLighting heating/cooling arrangementsSocial benefitsNatural ventilation
The invention relates to a light-emitting diode (LED) flood lamp, which comprises an LED lamp cap, a radiator and a tail cover. The LED lamp holder consists of an aluminum substrate, a plurality of single LED chips, a lamp cap seat and a lens. The radiator consists of a hollow annular cylindrical object and fins on the surface of the outer ring of the cylindrical object; a cylindrical object body is provided with a plurality of ventilation channels penetrating the top and bottom of the cylindrical object body; the tail cover is in a disc shape; and heat dissipation seat threads, tail cover threads and boss threads of the LED lamp cap seat are respectively connected onto inner bore threads of the hollow annular cylindrical object. The LED flood lamp has the advantages as follows: 1, the single LED chips are directly packaged on the aluminum substrate in the manner of integration, and the lens is shared, so that light distribution is even, and the light intensity is enhanced; 2, under the condition that effective heat dissipation surfaces of the fins of the LED flood lamp are not changed, the natural ventilation channels are additionally arranged, and therefore, power consumption-free heat dissipation is realized, the junction temperature of the LED flood lamp is reduced, and the light decay speed of the LED flood lamp is reduced, and the service life of the LED flood lamp is prolonged. Remarkable progresses and economic and social benefits are obtained.
Owner:谢金崇
Novel LED underground lamp
InactiveCN104791651AExtended service lifeSmall working currentPoint-like light sourceElectric circuit arrangementsElectricityVoltage regulation
The invention discloses a novel LED underground lamp. A lamp shell is in threaded connection with a lamp cover, tempered glass is installed on the lamp cover in a pressed mode through a sealing rubber cushion, the portion, located under an LED illuminating plate, of the lamp shell is provided with a controller, a sound sensor and a voltage adjusting device, the sound sensor and the voltage adjusting device are connected with the controller, the sound sensor is used for collecting the sounds near the lamp, and the voltage adjusting device is used for adjusting the voltage flowing into the LED illuminating plate; when the sounds collected by the sound sensor reach a preset decibel value, the controller controls the voltage adjusting device to adjust the voltage flowing into the LED illuminating plate to be lowered to 40-60% of full-load voltage. According to the novel LED underground lamp, the structure is simple, the electricity consumption is saved, the luminance decrease of an LED light source is slowed down, in addition, the weakened illuminating of the underground lamp is achieved, and the discomfort caused to human eyes on account of dazzle of the lamp is avoided.
Owner:安徽安发特交通工程集团有限公司
Solar LED street lamp with protection function
ActiveCN111963991APlay a cooling roleMaintain light intensityMechanical apparatusGeneral water supply conservationCooling effectEngineering
The invention relates to the technical field of solar street lamps, and discloses a solar LED street lamp with a protection function. The solar LED street lamp comprises a lamp post, a protection shell is arranged on the left side of the lamp post, an LED lamp protection device is fixedly connected to the middle of an inner cavity of the protection shell, and a transparent funnel is fixedly connected to the bottom of the LED lamp protection device. According to the solar LED street lamp with the protection function, the LED lamp protection device, a water receiving spherical barrel, an elasticcontraction part and a water outlet and seepage rod are matched, clear rainwater collected on the water receiving spherical barrel is stored in the annular groove, the cooling effect is achieved on the LED core tube located in the LED lamp protection device, meanwhile, when the inner groove of the annular groove is filled with liquid, the liquid in the annular groove can be conveniently replaced,so that the LED core tube is indirectly cooled through the LED lamp protection device, the luminous efficiency intensity of the electrified LED core tube is favorably maintained, the luminous decay speed of the LED core tube is reduced, and the service life of the LED core tube is prolonged.
Owner:广东智飞达照明科技有限公司
Efficient-radiation LED lamp and production method thereof
InactiveCN102809130ASimple structureAvoid excessive heatPoint-like light sourceLighting heating/cooling arrangementsPrinted circuit boardRadiation
The invention discloses an efficient-radiation LED lamp and a production method thereof. The production method includes the steps of firstly, producing a strip-shaped welded PCB (printed circuit board), evenly welding a plurality of LED lamps on the welded PCB, and reserving a through hole on the welded PCB right under each LED lamp; secondly, using graphite to produce a strip-shaped graphite radiator, and evenly disposing a plurality of thermal conducting rivets on the graphite radiator; and thirdly, coating thermal conducting paste on the top surface of the graphite radiator and the top of each thermal conducting rivet, and fixing the top surface of the graphite radiator to the lower surface of the welded PCB, and allowing the top of each thermal conducting rivet to contact with the bottom of each LED lamp to form a efficient radiating structure; wherein, the head of each thermal conducting rivet protrudes out of the graphite radiator, and the distance between two adjacent thermal conducting rivets is identical with the distance between the two adjacent LED lamps on the welded PCB. The invention further provides the efficient-radiation LED lamp produced by the method.
Owner:梁首强
A kind of anti-uvled light attenuation radiation cross-linked polyethylene insulating material and preparation method thereof
Disclosed is an anti-UV LED light decay, radiation cross-linked polyethylene insulating material, and a preparation method thereof. The raw materials comprise a matrix resin, a specific photoinitiator, a specific photoinitiator aid, and a specific multi-functional group crosslinking aid. The matrix resin is composed of polyethylene resin, a light-transmitting resin, and an ethylene-vinyl acetate copolymer. The preparation method comprises weighing each raw material in accordance with a formula, mixing and stirring the polyethylene resin, the specific photoinitiator, the specific photoinitiator aid and the specific multi-functional group crosslinking aid to prepare a premix, mixing the premix with the remaining raw materials, and extruding same to form and obtain an insulating material. The insulating material of the present invention can be processed at a low temperature, and has a sufficient degree of crosslinking without the need to reduce the extrusion speed.
Owner:JIANGSU DEWEI ADVANCED MATERIALS
A treatment device for jaundice
ActiveCN105413064BImprove light source efficiencyNarrow light bandLight therapyLight dispersionOptoelectronics
The invention discloses a jaundice therapeutic instrument. The jaundice therapeutic instrument comprises a bracket, a shell, a light source system and an adjusting mechanism; a plurality of light outgoing holes are molded at the bottom of the shell; the light source system includes an LED light source, a first convex lens located below the LED light source and a light dispersion assembly used for dispersing light; light emitted by the LED light source passes through the first convex lens and the light dispersion assembly successively and is emitted out from the light outgoing holes; and the adjusting mechanism is used for adjusting a distance between the second convex lens of the light dispersion assembly and the first convex lens. According to the jaundice therapeutic instrument, the distance between the second convex lens and the first convex lens can be adjusted through the adjusting mechanism, so that the dispersion effect of the light which is emitted by the light source system and is emitted to a position below the shell through the light outgoing holes of the shell can be adjusted through the adjusting mechanism, and therefore, the dispersion effect of the light can be adjusted according to the specific circumstances of newborns, and more suitable therapies can be provided for newborns with jaundice.
Owner:SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
Light-emitting diode (LED) lamp radiating system
InactiveCN104296101AReduce the temperatureReduce light decay speedPoint-like light sourceLighting heating/cooling arrangementsEffect lightEngineering
The invention provides a light-emitting diode (LED) lamp radiating system which is used for dissipating heat for an LED lighting module. The system comprises a lamp cavity casing and a radiator which are arranged on the back of the LED lighting module. The radiator is arranged in the lamp cavity casing which is filled with single phase heat transfer liquid. The radiator is completely immersed in the single phase heat transfer liquid, and the LED lighting module is isolated from the single phase heat transfer liquid. The LED lamp radiating system is simple and reasonable in structure and capable of quickly dissipating heat of the LED lighting module and effectively reducing the temperature of the LED lighting module, reduces the light depreciation speed of the LED lamp, prolongs the service life of the LED lamp, reduces usage of expensive good heat transfer metal in the radiator on the premise that the radiating effect is ensured and reduces the manufacture cost of the LED lamp accordingly.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
An intelligent control system for led street lights
ActiveCN105208701BExtend your lifeHigh light efficiencyElectric light circuit arrangementEnergy saving control techniquesPower flowRemote control
The invention discloses an LED street lamp intelligent control system. The LED street lamp intelligent control system comprises N LED lamps connected in parallel and a remote control device. Each LED lamp is internally provided with an LED light source, a branch controller, a temperature sensor and a branch voltage adjusting device. The branch control is connected with the temperature sensor and the branch voltage adjusting device. The temperature sensor is used for detecting the temperature in the LED lamp. The branch voltage adjusting device is used for adjusting an input voltage of the LED lamp. The remote control device comprises a total control and a total voltage adjusting device. The total controller is in communication with the branch controller in each LED lamp. The total controller is connected with the total voltage adjusting device and a time relay. The total voltage adjusting device is used for adjusting an output voltage of the total controller. According to the invention, the long service lifetime and the high light efficiency of each LED light source are ensured, the working current of each LED light source is gradually lowered in work, and the working power of each LED light source is gradually lowered, so that the working temperature of each LED lamp is lowered, and the light decay speed of each LED light source is reduced.
Owner:安徽安发特交通工程集团有限公司
Irradiation cross-linked insulating polyethylene master batch capable of resisting UVLED light attenuation and preparation method and application thereof
The invention discloses irradiation cross-linked insulating polyethylene master batch capable of resisting UVLED light attenuation. The master batch comprises the following raw materials: matrix resin, a specific photoinitiator, a specific photoinitiation aid, an anti-reflection agent and a specific polyfunctional-group cross-linking aid, wherein the matrix resin is prepared from linear low-density polyethylene resin, a styrene-butadiene-styrene block copolymer, light-transmitting resin and a polyolefin elastomer (POE) and / or an ethylene-vinyl acetate copolymer. The master batch of the invention is high in initiation efficiency and low in processing temperature; customers can purchase matrix resin by themselves according to needs and then subject the matrix resin and the master batch disclosed in the invention to mixing and extrusion processing, so the problem that output efficiency is greatly reduced due to serious light attenuation in the prior art can be solved, and the master batchis convenient to use and easy to operate by the customers; and the insulating master batch provided by the invention can be directly added into existing conventional resin matrix for extrusion molding, and the advantages of processibility at low temperature and sufficient cross-linking degree can also be obtained.
Owner:JIANGSU DEWEI ADVANCED MATERIALS
Light attenuation compensation method based on knowledge base
ActiveCN110677958BReduce light decay speedBalanced long-lasting light effectElectrical apparatusEnergy saving control techniquesEngineeringLED lamp
This application relates to dimming control of LED lamps and light attenuation compensation control of LED lights, especially to a method of LED light attenuation compensation based on the knowledge base, which is calculated and set by the program in the controller according to the rules of the knowledge base The brightness compensation control parameters of the LED lamp enable the LED lamp to maintain a stable lighting brightness output for a long period of time. This application provides an LED lamp with a luminous margin. It uses artificial intelligence technology to build a knowledge base to monitor all operating data of the LED in real time. According to the operating data and knowledge base, through a certain algorithm, determine the light attenuation compensation. Amount, so that in a long period of time, the LED light can have a stable output, and reduce the light decay speed of the LED lamp as a whole. The advantage of the present invention is that by reserving a certain luminous margin at a relatively small cost during the production of LED lamps, the light decay speed of the entire LED lamp can be very well reduced, the service life of the LED lamp is generally improved, and the LED lamp is reduced. maintenance pressure.
Owner:上海绿浦环保科技股份有限公司
Lamp cap, motor vehicle lighting device and motor vehicle
PendingCN109140383AGood cooling effectReduce light decay speedSignalling/lighting devicesRoad vehiclesEngineeringControl circuit
The invention relates to a lamp cap, a motor vehicle lighting device and a motor vehicle. The lamp cap comprises a heat conduction mounting plate, a heat conduction connecting plate, a heat conductionpipe sleeve, a control circuit board, a switching circuit board, lamp boards and a heat dissipation module. The heat conduction mounting plate is connected with the heat conduction pipe sleeve through the heat conduction connecting plate. The control circuit board is arranged in the heat conduction pipe sleeve, and is connected with the end portions of the lamp boards through the switching circuit board. The two lamp boards are arranged on the two side surfaces of the heat conduction mounting plate correspondingly. When the heat dissipation module works, because the heat dissipation module isrelatively close to a lamp bead and the lamp boards, heat of the lamp boards can be better diffused to the outside, the lamp cap has a better heat dissipation effect, the light attenuation speed canbe reduced, and the service life can be greatly prolonged.
Owner:广州联诚照明实业有限公司
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