Light-emitting diode (LED) flood lamp

Abstract

The invention relates to a light-emitting diode (LED) flood lamp, which comprises an LED lamp cap, a radiator and a tail cover. The LED lamp holder consists of an aluminum substrate, a plurality of single LED chips, a lamp cap seat and a lens. The radiator consists of a hollow annular cylindrical object and fins on the surface of the outer ring of the cylindrical object; a cylindrical object body is provided with a plurality of ventilation channels penetrating the top and bottom of the cylindrical object body; the tail cover is in a disc shape; and heat dissipation seat threads, tail cover threads and boss threads of the LED lamp cap seat are respectively connected onto inner bore threads of the hollow annular cylindrical object. The LED flood lamp has the advantages as follows: 1, the single LED chips are directly packaged on the aluminum substrate in the manner of integration, and the lens is shared, so that light distribution is even, and the light intensity is enhanced; 2, under the condition that effective heat dissipation surfaces of the fins of the LED flood lamp are not changed, the natural ventilation channels are additionally arranged, and therefore, power consumption-free heat dissipation is realized, the junction temperature of the LED flood lamp is reduced, and the light decay speed of the LED flood lamp is reduced, and the service life of the LED flood lamp is prolonged. Remarkable progresses and economic and social benefits are obtained.

Description

Technical field: [0001] The invention relates to an illuminating LED lamp, in particular to an LED floodlight. Background technique: [0002] Floodlights are widely used in places that require large-area lighting and high brightness. Traditional floodlights use 100-1000W high-power tungsten lamps, iodine-tungsten lamps, and mercury lamps as light sources. These light sources use high voltage and high current. Large volume, heavy weight, high energy consumption, serious environmental pollution, short life, and unsatisfactory lighting effects. In recent years, LED lamps have developed extremely rapidly and are widely used in home appliances, vehicles, computers, lighting and other products, especially in lighting. It is well known that the luminous efficiency of LED lamps exceeds that of incandescent lamps and fluorescent lamps. Due to the insufficient brightness of a single LED, ordinary LED lights usually adopt an LED array structure. Due to the large area of ​​the array ar...

AI Technical Summary

Problems solved by technology

Due to the insufficient brightness of a single LED, ordinary LED lights usually adopt an LED array structure. Due to the large area of ​​the array arrangement, it is difficult to dissipate heat on the one hand, and on the other hand, it causes difficulty in waterproofing and reduces reliability; another problem is that LED lights are used to Since reflectors are set around the single-chip LED, the single-chip LED becomes a linear light source, and lenses or other measures are required to change the light distribution requirements. In this way, the light of the single-chip LED has to undergo two refractions, and the light intensity is weakened. These problems have become the bottleneck of the development of LED lights and need to be solved one by one

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