LED (light emitting diode) tube lamp

Abstract

The invention relates to an LED (light emitting diode) tube lamp. The LED tube lamp comprises a tubular shell, an LED light source panel, a power supply circuit board, a prism plate, a reflecting cup and an installation leaf spring, wherein two sides of the shell are respectively provided with a slit in symmetry, the LED light source panel is fixed on the inner top surface of the shell, the LED light source panel is provided with a reflecting membrane, the prism plate is arranged in a top opening of the reflecting cup, the reflecting cup is fixed on the shell, the top of the reflecting cup is tightly attached to the LED light source panel, the power supply circuit board is arranged between the radial outer side of the reflecting cup and the shell and fixed below the LED light source panel in a separating manner, one end of the installation leaf spring is fixed inside the shell, and the other end stretches outside the shell through the slit. The LED tube lamp is simple in structure, small inn size, compact, attractive, strong in heat radiating property, low in height and high in space utilization rate.

Description

technical field [0001] The invention relates to the field of LED lamps, in particular to an LED downlight. Background technique [0002] LED (Lighting Emitting Diode) is a light-emitting diode, which is a semiconductor solid-state light-emitting device. It uses a solid semiconductor chip as a light-emitting material, and the excess energy is released through the recombination of carriers in the semiconductor to cause photon emission and directly emit light. LED lighting products are lighting appliances manufactured using LEDs as light sources. There are no ultraviolet and infrared rays in the spectrum of LED light sources, low heat and no flicker, no radiation, and waste can be recycled, no pollution, no mercury, cold light source, It is safe to touch, so it is a typical green lighting source; in addition, LED is called the fourth generation lighting source or green light source, which has the advantages of energy saving, environmental protection, long life, small size, etc...

AI Technical Summary

Problems solved by technology

[0003] With the continuous advancement of LED technology and the continuous reduction of costs, it is a new development trend for LED lamps to enter human life as environmentally friendly ordinary household appliances. LED downlights are no exception. Many types of LED downlights have emerged to replace traditional lighting. , but limited by the high heat of the LED itself, a large shell is required to dissipate heat, which makes the volume of the lamp usually large; at the same time, the high brightness of the LED brings high glare. It is difficult for ordinary diffusers to ensure both light efficiency and Low glare, deep tube design is a reliable method to ensure both light efficiency and large cut-off angle, which has become a new development direction, but with the necessary power components of LED, either the LED downlight The height and volume are too large, or the power supply components are dragged outside to make the lamp look cumbersome

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