Rotary LED lighting system

Abstract

The invention discloses a rotary LED lighting system. The rotary LED lighting system comprises a lamp body (4), LED lamp beads (3) and an alternating current drive power supply, wherein the LED lamp beads (3) are divided into groups and are connected with the alternating current drive power supply through a circuit, and the LED lamp beads (3) are sequentially turned on or off group by group underdriving of the alternating current drive power supply. The rotary LED lighting system is characterized in that the LED lighting system further comprises a drive system and light emitting pieces (2), the LED lamp beads (3) can rotate around an axis under supporting of the drive system, the grouping distribution structure of the LED lamp beads (3) adapts to the structure of the light emitting pieces(2), the light emitting pieces (2) are located at the front ends of the LED lamp beads (3) to shield part of the LED lamp beads (3), and the rotation sequence of the LED lamp beads (3) adapts to theturning on or off sequence of the groups of the LED lamp beads (3). The LED lighting system not only has good heat dissipation performance, but also can maintain approximately-constant light emittingcapacity, and is low in flicker effect.

Description

technical field [0001] The invention relates to the field of lighting devices, in particular to a D lighting device with LED as the main light source and adaptable to AC driving. Background technique [0002] Compared with incandescent lamps and energy-saving lamps, LED (light-emitting diode) has the advantages of energy saving, durability, and no pollution. It is regarded as the most promising next-generation lighting method and has attracted widespread attention. The basic light-emitting principle of light-emitting diodes is: in the process of carrier recombination in semiconductors, the excess energy released causes photon emission, and light waves of various colors such as red and blue are emitted. It belongs to the cold light source from electric energy directly to light energy. With outstanding advances, these unique principles and characteristics of LED not only bring the advantages of LED as a light source, but also put forward a series of new requirements for LED li...

AI Technical Summary

Problems solved by technology

Due to the unidirectional conduction of light-emitting diodes, in order to maintain stable light emission in lighting applications, the current practice is to use direct current for driving. A rectifier transformer is attached to the lamp for AC / DC conversion. This method will bring additional power loss and reduce the overall life of the product. Therefore, Chinese patent document CN101208813B discloses a "light-emitting device for AC power operation 》, the device comprises a light-emitting diode chip, the light-emitting diode chip has an array of series-connected light-emitting units, and switching blocks respectively connected to the nodes between these light-emitting units, wherein when the array is connected to an AC voltage power supply and is powered by the AC When driven by a voltage power supply, these light-emitting units are turned on and off sequentially by means of these switching blocks. This light-emitting device can turn on these arrays sequentially under AC power, and then turn off these arrays in the reverse order, thereby reducing the flicker effect and The luminous time can be increased, but this scheme has a complex structure and high requirements on the manufacturing process

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