Preparation method of LED light source assembly and LED roadway light related to the method

Abstract

The invention relates to a lamp and a machining method of the lamp, and in particular discloses a preparation method of a light source assembly of a light emitting diode (LED) lamp and an LED roadway lamp involving in the method. The method comprises the following steps of: arranging an LED lamp bead on an LED lamp bead printed circuit board (PCB) by adopting hot air tin soldering of relatively high temperature, and then soldering the LED lamp bead PCB provided with the LED lamp bead on an aluminum-based heat conducting plate at a relatively low temperature. According to the LED roadway lamp prepared by adopting the method, besides the conventional components on structure, the light source assembly is arranged on a heat dissipation board in a tin soldering mode, and the heat dissipation shell of the LED roadway lamp is sunflower radiating fins. According to the method and the product provided by the invention, the problem of poor heat dissipation performance of the LED roadway lamp iseffectively solved; and the provided LED roadway lamp has the advantages of compact structure, attractive appearance, high efficiency, energy conservation and ultra long service life.

Description

technical field [0001] The invention relates to a lamp and a processing and manufacturing method for the lamp, in particular to a method for preparing an LED light source assembly and an LED roadway lamp involved in the method. Background technique [0002] Heat dissipation performance is one of the key factors affecting the service life of LED lamps. During the use of LED lamps, about 80% of the energy is converted into heat energy, and with the increase of power density and packaging density of LED lamp products, it will inevitably cause the accumulation of heat inside the lamp, which will lead to the shift of luminous wavelength and the decrease of light output efficiency. And problems such as reduced service life of lamps and lanterns. [0003] Among the many factors related to the heat dissipation performance of LED lamps, the installation and connection method between the LED lamp bead of the light source component, the LED lamp bead printed circuit board (LED lamp be...

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Problems solved by technology

Common installation and connection methods, such as using high thermal conductivity glue to connect the light source and the lamp holder or heat conduction plate, improve the heat conduction performance between the light source and the lamp holder, and then effectively export the heat. The LED roadway lamp disclosed in ZL201020132511. The heat is introduced into the light source lamp panel through the high thermal conductivity silicone layer and dissipated into the air. Although this method can improve the heat dissipation performance of the lamp to a certain extent, in the actual use process, the heat conduction glue often falls off due to overdrying. The thermal conductivity of the luminaire decreases, leading to bad phenomena such as light decay and dead lights; in addition, the LED lamp bead and the LED lamp bead PCB are directly installed on the lamp holder with good thermal conductivity by mechanical connection, which not only improves the thermal conductivity of the lamp In addition, in the process of processing lamps and lanterns, the degree of processing compression is not easy to control, which can easily cause damage to components. At the same time, lamps prepared by mechanical connection are bulky and clumsy, and parts are prone to appear during use. Loose phenomenon

[0004] For the heat dissipation performance of LED roadway lights, it directly depends on the relevant structure inside the lamps, that is, in terms of the luminous efficiency of existing LED lights, the heat emitted by the light source can be effectively exported by means of scientific selection of components and reasonable assembly between components. That is, by optimizing the design, increasing the heat dissipation area and ventilation convection effect, and improving the surface radiation coefficient, coupled with the above-mentioned conventional installation method of the light source component, the lamp body will eventually increase in size, bulky in appearance, and affect the appearance

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