Small power LED illumination bulb
A technology of light-emitting diodes and light bulbs, which is applied to lighting devices, lighting and heating equipment, and components of lighting devices. It can solve problems such as poor ability to adapt to fluctuations in power supply, long response time of light sources, and short service life. Hot and hot, easy to install, and improve the service life
Inactive Publication Date: 2008-07-09
金海月
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Problems solved by technology
[0002] At present, all kinds of filament lamps and gas discharge bulbs used for lighting have low lighting efficiency, large heat loss, short service life, poor ability to adapt to fluctuations in power supply, and long response time of the light source when turning on and off the lamp.
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[0011] The present invention will be further described below in conjunction with the accompanying drawings.
[0012] Fig. 1 is a schematic structural diagram of a light bulb according to an embodiment of the present invention. Among them, a standard lamp cap 1, such as an E27 lamp cap, is tightly connected to the lamp housing 2 through a silicone rubber adhesive; the printed circuit board 3 is stuck in the inner cavity of the lamp housing 2 and placed perpendicular to the central axis of the lamp cap 1; the printed circuit board 3 faces the lamp cap One side of 1 is provided with a driving circuit 6 of a light emitting element, and the other side is distributed with a pin diagram of a light emitting element, such as the pin diagram of a light emitting diode (LED) 4 described in this embodiment. As shown in FIG. 3 , the light emitting diodes 4 are evenly arranged on the pin diagram of the printed circuit board 3 according to equidistant concentric rings with the central axis of...
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The invention discloses a small-power light emitting diode (LED) lighting bulb which comprises a bulb holder, a bulb housing closely connected with the lamp holder, a printed circuit board locked in the inner cavity of the bulb housing, a LED driving circuit arranged on the bulb holder-facing surface of the printed circuit board, a LED pin map arranged on the other surface, and a bulb cover covered outside the bulb housing. The invention is characterized in that LEDs are uniformly arranged in concentric circles around the axis line of the bulb holder as axle center on the LED pin map of the printed circuit board; each LED is slightly oblique relative to the axis line of the bulb holder with the same oblique angle; the LED driving circuit comprises an external power supply which is connected with a rectifying electric bridge by a voltage-reducing current-limiting circuit; and filtering / voltage-stabilizing circuits are connected in parallel with the two ends of the rectifying electric bridge to apply the voltage to the LEDs in groups by the corresponding voltage-trimming circuits of different output powers.
Description
technical field [0001] The invention relates to a lighting bulb, in particular to a bulb using a light-emitting diode as a cold light source. Background technique [0002] At present, all kinds of filament lamps and gas discharge bulbs used for lighting have low lighting efficiency, large heat loss, short service life, poor ability to adapt to fluctuations in power supply, and long response time of the light source when turning on and off the lamp. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned shortcomings of existing light sources, and propose a light with high brightness, low heat loss, constant temperature during operation, long service life, large divergence angle, large lighting range, and power supply when turning on and off the light. Responsive lighting bulbs. [0004] The technical solution of the present invention is: a light-emitting diode lighting bulb, including a lamp base, and a lamp housing closely c...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F21V19/00F21V23/00F21V17/00H05B37/00H05K1/18H02M7/08F21Y101/02F21Y115/10
Inventor 李光男
Owner 金海月