Transverse fin radiating type strip high-power LED street lamp

Abstract

The invention discloses a transverse fin radiating type strip high-power LED street lamp, which comprises an integrated lamp holder, an end tail closing plate, an LED chip module and a light transmitting plate. The integrated lamp holder consists of a lamp holder plate block, a butt plate, a mounting sleeve, radiating fins and a ridge and is made of an aluminum material by primary die casting. The invention is mainly characterized in that: 1, the radiating fins are transversely designed, namely that the plane of the radiating fins is vertical to the longitudinal direction of the lamp holder plate block, and the radiating fins are longitudinally and uniformly arranged on the back of the lamp holder plate block; and 2, the length-width ratio of the effective surface of the lamp is more than 2:1. Due to the strip tile-shaped scroll lamp holder and the transverse radiating fins of the lamp, the radiating fins and the lamp have better permeability in the air, and the overall radiating effect of the lamp is improved to a large degree, therefore the convergence phenomenon of the heat energy produced by the LED chip is avoided, thereby being favorable for further improving the light efficiency of the LED and prolonging the service life of the LED.

Description

technical field [0001] The invention belongs to the technical field of lighting appliances, and relates to a strip-shaped high-power LED street lamp in the form of cross-fin heat dissipation. Background technique [0002] LED is one of the most potential lighting sources, its development and application have matured, and it has become a trend and necessity to replace traditional light sources; however, except for a part of the energy of LEDs that can be converted into light energy, a considerable Part of it still needs to be converted into heat energy. Therefore, heat dissipation is still a bottleneck affecting the application and development of high-power LEDs. Therefore, if the design is not reasonable, it will directly affect the manufacturing cost, energy-saving effect and service life of high-power LED lamps. [0003] At present, the high-power LED road lighting mainly adopts the natural convection heat dissipation form of the integrated design of the lamp holder and th...

AI Technical Summary

Problems solved by technology

[0002] LED is one of the most potential lighting sources, its development and application have matured, and it has become a trend and necessity to replace traditional light sources; however, except for a part of the energy of LEDs that can be converted into light energy, a considerable Part of it still needs to be converted into heat energy, so heat dissipation is still a bottleneck affecting the application and development of high-power LEDs. Therefore, if the design is unreasonable, it will directly affect the manufacturing cost, energy-saving effect and service life of high-power LED lamps.

[0003] At present, the high-power LED road lighting mainly adopts the natural convection heat dissipation form of the integrated design of the lamp holder and the cooling fin, and the aspect ratio of the effective surface of the designed lamp is limited to less than 2:1, or even less than 5:3; besides, the arrangement of cooling fins is almost all stretched longitudinally and parallel on the back of the lamp; in this way, the distribution of cooling fins on the back of the lamp is almost a square, so the heat energy is concentrated virtually A large high-temperature block is formed in the center of the lamp body, and the heat distribution is very uneven, which directly affects the normal operation of the LED chips distributed around it, and even partially fails to work.

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