Indoor light emitting diode (LED) lighting device with high light evenness degree

Abstract

The invention discloses an indoor light emitting diode (LED) lighting device with a high light evenness degree. The indoor LED lighting device comprises a lamp body (1) with a heat dissipating structure, LED lamp beads (2) and a driving power source, wherein the LED lamp beads (2) are connected with the driving power source through a circuit. The indoor LED lighting device is characterized in that the LED lighting device further comprises a driving system and a rotary light distributing piece (3), wherein the rotary light distributing piece (3) is positioned at the front ends of the LED lamp beads (2); and the rotary light distributing piece (3) can rotate round a shaft under the support of the driving system. The LED lighting device has better heat dissipating performance, distributes light flexibly and is convenient to maintain.

Description

[0001] technical field [0002] The invention relates to the field of lighting fixtures, in particular to an indoor LED lighting device with high uniform luminosity. [0003] Background technique [0004] [0005] LED light source has many advantages such as long service life, short start-up time, remarkable energy-saving effect, no ultraviolet radiation, no mercury pollution, and high safety in use. It is gradually becoming the mainstream of lighting source. However, although the luminous efficiency of LED is constantly increasing However, the heat generated during the working process is still unavoidable, especially for high-power and high-density applications, the heat will seriously affect the life and performance of the product. The existing LED lamps mainly rely on heat radiation for heat dissipation. The performance is limited. In order to meet the application needs of continuously improving heat dissipation requirements, there have been devices that set fans to enh...

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Problems solved by technology

[0005] LED light source has many advantages such as long service life, short start-up time, remarkable energy-saving effect, no ultraviolet radiation, no mercury pollution, and high safety in use. It is gradually becoming the mainstream of lighting source. However, although the luminous efficiency of LED is constantly increasing However, the heat generated during the working process is still unavoidable, especially for high-power and high-density applications, the heat will seriously affect the life and performance of the product. The existing LED lamps mainly rely on heat radiation for heat dissipation. The performance is limited. In order to meet the application needs of continuously improving heat dissipation requirements, there have been devices that set fans to enhance heat dissipation. Chinese patent document CN201401764Y discloses a "High Power LED Lamp Structure with Fan". The structure of the high-power LED lamp with a fan is characterized in that: a fan is provided, the radiator is a tubular body with a hollow lumen, and the fan is fixed at the center of the tail end of the radiator. This high-power LED lamp structure with a fan adopts It is the method of setting the fan at the back end of the LED lamp bead, which is not very convenient for the replacement and maintenance of the fan. At the same time, because the light output angle of the LED is small, it is necessary to homogenize the light output of the LED in general lighting. The existing method is mainly With the help of lenses, light uniform covers, light guide plates and other measures to adjust the light output of LEDs, with the development of LED lighting applications, the requirements for light distribution of lamps continue to increase, and more light distribution methods are needed to meet

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