Energy-saving heat dissipation type LED street lamp

Abstract

The invention discloses an energy-saving heat dissipation type LED street lamp that comprises a lamp post and a lampshade fixedly connected to the side wall of the lamp post; the lower end of the lampshade is open and provided with a transparent cover, a lamp body is fixedly installed on the inner wall of the lampshade; heat dissipation holes are formed in the side wall, away from the lamp post, of the lampshade; a cavity is formed in the side wall of the lamp post, and an impeller is rotationally connected to the side wall of the lamp post through a fixing shaft. The impeller, a magnetic block, a movable plate and a fixed plate are arranged; the impeller can be driven to rotate by airflow, therefore, the movable plate slides up and down; hot air in the lampshade is pumped out, and external cold air enters the lampshade; therefore, a good heat dissipation and cooling effect on the street lamp is achieved, current can be generated and stored for supplying power to the street lamp, electric energy is saved, meanwhile, the pumped hot air can be used for promoting rotation of the impeller, cyclic utilization of energy is achieved, and the heat dissipation and cooling effect and the electric energy saving effect of the street lamp are further improved.

Description

Technical field [0001] The invention relates to the technical field of lamps, in particular to an energy-saving and heat-dissipating LED street lamp. Background technique [0002] LED street lights are currently the most energy-saving and environmentally friendly lighting products used on various roads, but LED light sources have high requirements for heat dissipation, because LED lights convert part of the electrical energy into visible light, and other energy is converted into heat. In addition, the LED lamp has a small packaging area and less heat dissipation through convection and radiation. If the excess heat is not dissipated through the heat dissipation system, a large amount of heat will be accumulated in the LED lamp, which will affect the life of the LED lamp. [0003] The heat dissipation of LED lamps in the prior art generally includes the following methods: First, the heat generated by the lamp body of the LED street lamp is dissipated through the natural convection be...

AI Technical Summary

Problems solved by technology

[0002] LED street lamps are currently the most energy-saving and environmentally friendly lighting products used on various roads, but LED light sources have high requirements for heat dissipation, because LED lights convert part of the electrical energy into visible light, and other energy is converted into heat energy. Moreover, the package area of ​​the LED lamp is small, and the heat dissipation through convection and radiation is less. If the excess heat is not dissipated through the cooling system, a large amount of heat will accumulate in the LED lamp, which will affect the life of the LED lamp.

[0003] The heat dissipation of LED lamps in the prior art generally includes the following methods: first, through the natural convection between the surface of the lampshade of the LED street lamp and the air, the heat generated by the lamp body of the LED street lamp is dissipated, but since the lamp body is inside the lampshade, this The heat dissipation method is not good for the heat dissipation effect of the lamp body; secondly, a radiator or a cooling fan with a large cross-sectional area is installed on the LED lamp to assist heat dissipation, but because it is used in the street lamp industry, the lampshade of the street lamp is generally a large internal space. For small strips, it is obviously unrealistic to install radiators or cooling fans with large cross-sectional areas

Images