Active-radiating LED (light-emitting diode) streetlamp light source with independent air flow passage

Abstract

The invention relates to an active-radiating LED (light-emitting diode) streetlamp light source with an independent air flow passage. The LED streetlamp light source is provided with a lamp base and a lamp tube which is detachably connected with the lamp base. The lamp tube comprises a lamp tube outer cover and a lamp body skeleton plate which is fixedly arranged in the lamp tube outer cover. A light-emitting unit consisting of a plurality of LED tube cores is fixedly arranged below the lamp body skeleton plate. The lamp body skeleton plate is fixedly arranged at the internal central part of a shell. A certain distance is left between the front end of the lamp body skeleton plate and a flow guide cover. A cover body, the flow guide cover and the lamp body skeleton plate form a U-shaped passage. The active-radiating LED streetlamp light source with the independent air flow passage provided by the invention has the advantages that the LED lamp is enabled not to require complex and heavy metal radiating fins, the cost is reduced, the energy is saved and the active-radiating LED streetlamp light source is compatible with the mechanical size of the traditional metal halide lamp and sodium lamp light sources; and compared with the existing active-radiating LED streetlamp light source, since the passage which can enable air to pass rapidly, the heat of the LED light source can be more rapidly dissipated into the air.

Description

technical field [0001] The present invention relates to patent classification number F21 lighting; F21V lighting device or functional features or components of its system; structural composition of lighting devices and other articles not included in other categories. In particular, it relates to an active cooling LED street light source with a fan. Background technique [0002] At present, most of the lamps and lanterns using LED as the light source adopt the method of structural heat dissipation, that is, the heat dissipation performance of aluminum material is used to make a heat sink to dissipate heat for the LED light source. Because the radiator is very bulky, it cannot be packed into the original lampshade. Therefore, when the street light source is replaced, the original street lamp lampshade can only be scrapped and replaced with an aluminum radiator and lampshade. [0003] Now there are also LED light sources that use fans to actively dissipate heat, such as the LE...

AI Technical Summary

Problems solved by technology

Although this kind of structure adopts the way of active fan heat dissipation, there are certain defects: 1. Since the aperture of the air intake passage is much larger than the aperture of the heat dissipation hole, the air flow velocity in the air intake passage will be obvious during actual use. Smaller, resulting in poor air circulation, the LED light-emitting unit will generate a lot of heat when working, which has a more obvious heating effect on the poor air circulation, working for a long time, because there is no fast air circulation channel, the air The circulation is not smooth, and the heat cannot be taken away in time, which will cause the heat dissipation efficiency of the entire LED light source to decrease

2. In order to maintain a large air intake in the air inlet channel, the size of the fan at the air inlet is much larger than the fan at the air outlet. The two types of fans are not compatible, which will cause a lot of trouble in future maintenance.

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