37results about How to "Reduce light decay speed" patented technology

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.

The invention discloses a radiating method of a high-power LED radiator and also discloses the radiator for implementing same, and the radiator comprises a radiating support and a plurality of LED lights. A printed circuit which can be connected with the LED lights is longitudinally arranged in the middle position of the front side of the radiating support, and the LED lights are welded on the printed circuit at intervals, and are fixed on the radiating support to form an integral structure. The invention has simple structure, and can rapidly radiate the heat of the high-power LED lights, thereby reducing the speed of LED brightness decline and greatly prolonging the service life of the LED lights; the LED lights can be used for more than 50000 hours at least by practical tests.

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 return tube and a steam tube. The return tube and the steam 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.

The invention discloses a radiating method of an LED radiator and also discloses the radiator for implementing same, and the radiator comprises a radiating support and a plurality of LED lights. A metal basal plate the width of which is slightly smaller than that of the radiating support is arranged on the front side of the radiating support, and a printed circuit which can be connected with the LED lights is longitudinally arranged in the middle position of the metal basal plate; the LED lights are welded on the printed circuit at intervals, and are fixed on the metal basal plate to form an integral structure. The invention has simple structure, and the metal basal plate and the radiating support are separately arranged to be convenient for manufacture; the printed circuit is arranged onthe metal basal plate, and the LED lights can be directly welded, and can be fixed on the radiating support by radiating silicon grease so as to form an integral radiating structure; the heat of the LED lights can be rapidly radiated, thereby reducing the speed of LED brightness decline and greatly prolonging the service life of the LED lights; the LED lights can be used for more than 50000 hoursat least by practical tests.

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.

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.

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.