High-power LED lamp low in cost and capable of easily radiating heat

Abstract

The invention discloses a high-power LED lamp low in cost and capable of easily radiating heat. The high-power LED lamp comprises a lamp holder easy to ventilate, a driving power source accommodated in the lamp holder, a plastic lamp frame of a birdcage-shaped structure and easy to ventilate, a plurality of LED lamp bars and a lamp bar connecting plate easy to ventilate; the wide end of the plastic lamp frame is fixedly connected with the top end of the lamp holder; the plastic lamp frame is provided with a plurality of longitudinal mounting grooves uniformly distributed in a circumferential direction at intervals; each of the LED lamp bars are embedded in one of the longitudinal mounting grooves, and LED beads or LED chips of the LED lamp bars are exposed on the outer surface of the plastic lamp frame and are in direct contact with outside air; the lamp bar connecting plate is fixedly connected with the narrow end of the plastic lamp frame; two electrodes of the LED lamp bars are in snap connection to the outer edge of the lamp bar connecting plate; an output line of the driving power source and the two electrodes of the LED lamp bars are respectively and electrically connected with the lamp bar connecting plate; and the lamp holder, the plastic lamp frame, the lamp bar connecting plate generate air convection so as to generate a smokestack heat radiation effect. The high-power LED lamp has the advantages of light weight, small size, low cost and good heat radiation effect.

Description

technical field [0001] The invention relates to an LED lamp, in particular to a high-power LED lamp with low cost and easy heat dissipation. Background technique [0002] LED has gradually replaced traditional incandescent lamps and energy-saving lamps due to its energy saving, high efficiency and environmental protection. With the continuous development of LED technology and the continuous reduction of prices, LED lamps have been widely used in ordinary homes. [0003] Since the LED is a point light source with a small area, only 30-50% of the input electric energy is output in the form of light, and the remaining 50-70% of the electric energy is released in the form of heat, so the heat generated by the LED is large and concentrated, and at the same time Heat has a great impact on LED light emission, so it is necessary to use a radiator to dissipate heat, especially for high-power LED lights, not only need to use a bulky radiator to dissipate heat, but even need to use act...

AI Technical Summary

Problems solved by technology

[0003] Since the LED is a point light source with a small area, only 30-50% of the input electric energy is output in the form of light, and the remaining 50-70% of the electric energy is released in the form of heat, so the heat generated by the LED is large and concentrated, and at the same time Heat has a great impact on LED light emission, so it is necessary to use a radiator to dissipate heat, especially for high-power LED lights, not only need to use a bulky radiator to dissipate heat, but even need to use active cooling devices such as fans, heat pipes, etc. to assist in dissipating heat , so that the high-power LED lamp is larger and heavier, or the price is higher. In addition, the service life of the high-power LED lamp is affected due to the short life of the fan and heat pipe. In addition, the noise of the fan during the heat dissipation process is also relatively large.

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