Light-emitting diode lamp

Abstract

The invention relates to a light-emitting diode lamp comprising a lamp body, an optics part, a heat radiation part and an electric part, wherein the lamp body is provided with a plurality of transom windows, the heat radiation part and the electric part are arranged in the lamp body, the heat radiation part comprises a mounting seat and a heat radiator provided with a plurality of fins. The mounting seat is arranged at one end of the heat radiator, near the optics part, and is in heat-conduction connection with the heat radiator; the mounting seat is a polyhedron and comprises a polygonal heat conduction surface facing the heat radiator and a plurality of heat absorption surfaces. The electric part is arranged at the rear end of the heat radiation part and comprises a circuit board. The optics part is arranged at the front end of the heat radiation part and comprises a plurality of light-emitting diode light sources, a reflecting cover and a light guide cover. The light sources are arranged on the heat adsorption surface of the mounting seat; the reflecting cover is arranged between the light sources and the heat radiator and is provided with a reflecting surface facing the light sources; the light guide cover is arranged at the outer side of the reflecting cover, and the light sources and the mounting seat are arranged in the light guide cover; and the heat adsorption surface extends towards the light guide cover from the margin of the heat conduction surface.

Description

technical field [0001] The invention relates to a semiconductor lighting device, in particular to a light emitting diode lamp. Background technique [0002] People's long-term excessive reliance on fossil fuels has not only caused energy shortages and high oil prices, hindering economic development, but also increased the concentration of global carbon dioxide and harmful gas emissions, leading to climate abnormalities caused by global warming, ecological environment damage, And the harm to human existence is becoming more and more obvious. In order to sustainably manage the earth's ecological environment on which human beings depend, it is necessary to solve the energy crisis and environmental pollution problems at the same time. The development of new energy and renewable energy is the most important way to promote energy conservation and efficient use of energy. strategy, while traditional lighting consumes a considerable amount of energy, the development of lighting ener...

AI Technical Summary

Problems solved by technology

[0006] Whether the light source configuration of existing LED lamps is distributed or integrated, most of them are set on a plane of a heat-conducting substrate, so that the light source can only emit light toward one side of the plane, causing the other side of the plane to be completely dark , so that the LED lamp cannot achieve the diffuse light distribution effect of traditional bulbs in many practical applications (such as chandeliers, wall lamps, etc.)

[0007] It is also seen that the existing LED lamps directly use reflectors or light cups matched with traditional lamps for light distribution. However, due to the directivity of the LED light source and the characteristics of point light source or light source concentration, the illuminance will be concentrated in a relatively small area. A small area, which rapidly dims with the expansion of the range, cannot meet the requirements of general lighting: the uniform light distribution of the light gradually weakens with the diffusion distance, although the above light distribution can be achieved through the lens characteristics of the light guide cover. degree of improvement, but the loss of light efficiency and serious glare problems still cannot be solved

[0008] Conversely, in terms of lighting energy saving, due to the diffuse light distribution effect of traditional light bulbs, the places that really need lighting and the places that do not need excessive lighting are treated equally, which causes energy waste and even uncomfortable light pollution; LED light sources are widely used in general lighting. In addition to the need for high heat dissipation efficiency, how to uniformly distribute light, how to make good use of the lighting directivity of LED light sources due to the luminous angle, and how to make good use of the light source in different directions and The mixed light effect caused by the position ensures that LED lighting fixtures can take into account heat dissipation, light distribution and energy saving effects according to different application requirements, which has become an important issue that must be solved in the development of LED lighting fixtures

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