LED (light emitting diode) headlamp of electric automobile

Abstract

The invention discloses an LED (light emitting diode) headlamp of an electric automobile, and belongs to the technical filed of LED illumination. The LED headlamp of the electric automobile comprises a shell, wherein the shell is provided with a light source chamber and a heat dissipation air duct; the front surface of the light source chamber is provided with a seal glass cover; the light source chamber is internally provided with a light reflection cover and a high-power LED module; the highlight emitted by the high-power LED module are gathered within an angle in front through the light reflection cover; the back surface of the high-power LED module is fixed on the heat absorption end of a heat pipe radiator; the heat emitted by the LED module during working is transferred from the heat absorption end of the heat pipe radiator to the heat dissipation end of the radiator; the heat dissipation end of the heat pipe radiator is provided with intensive heat dissipation fins; and the heat dissipation fins are arranged in the heat dissipation air duct, and the heat is absorbed by blast air generated during the driving process of the automobile. The high-power LED serves as the light source of the headlamp of the electric automobile, and the LED headlamp of the electric automobile has the advantages of simple structure, high electro-optic conversion rate, energy and electricity conservation and long service life, and is safe and convenient to use; besides, the independent heat dissipation air duct is adopted, and the heat pipe radiator and the temperature-controlled heat dissipation fan are arranged, thus the heat emitted out by the LED during working can be guided and dissipated timely, and the problem of light attenuation generated because of heat emitting in the using process of the LED is solved.

Description

technical field [0001] The invention belongs to the technical field of LED lighting, and relates to a vehicle lamp, in particular to an electric vehicle LED headlight. Background technique [0002] At present, the lighting headlights of automobiles and electric vehicles generally use high-power halogen lamps or xenon lamps. The disadvantages of halogen lamps are: low electro-optical conversion rate, large power consumption, and short service life; the disadvantages of xenon lamps are: high color temperature , has poor penetrating power to fog, and requires high-voltage circuits and ballasts. The circuit structure is complex and the failure rate is high. Although the service life is longer than that of halogen lamps, it is only 3000 hours. For electric vehicles, all energy comes from energy storage batteries, and lamps that consume a lot of power are obviously not suitable. Contents of the invention [0003] The purpose of the present invention is to provide an electric ve...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an electric vehicle LED headlight, which can solve the defects of large energy consumption, low electro-optical conversion rate and short

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