High power LED (light-emitting diode) daylight lamp and heat rejection method

Abstract

The invention relates to a high power LED (light-emitting diode) daylight lamp and a heat rejection method. The daylight lamp comprises a light source and a lamp shell, wherein the light source is produced in a way that a plurality of LED chips are directly arranged on the frontage of a circuit baseplate in a crystal fixing manner, and a copper foil is covered on the whole back of the circuit baseplate; the frontal copper foil is divided into a plurality of crystal fixing regions and current channels, the current channels are connected with the LED chips of the crystal fixing regions by gold threads, and the crystal fixing regions are provided with heat conduction holes; and the lamp shell is of a rod shape, the section of the lamp shell is composed of a semicircular aluminum pipe, a transparent cover and two end covers, the light source is arranged outside the aluminum pipe, and the back copper foil of the circuit baseplate is closely contacted with the bottom wall of the aluminum pipe. The production of the high power LED daylight lamp is simple, the light effect is high, a thermal resistor interface is less, and the heat rejection effect is good.

Description

technical field [0001] The invention relates to an LED fluorescent lamp, in particular to a high-power LED fluorescent lamp and a heat dissipation method thereof. Background technique [0002] Traditional fluorescent lamps commonly used in indoor lighting have the disadvantages of short life, high energy consumption, mercury pollution, and flickering. Therefore, people have developed LED fluorescent lamps for solid-state lighting. The existing high-power LED fluorescent lamps have serious heat dissipation problems. , light field, and light attenuation have not been truly resolved. Especially for high-power LED fluorescent lamps that use urea board or fiberboard as the circuit board, it is even more serious. High-power LED fluorescent lamps on the market use the following two light sources: 1. The LED plug-in circuit of single-particle bead-shaped packaging on urea board or fiberboard The board is used as a light source, and the second is a single-particle patch-type package...

AI Technical Summary

Problems solved by technology

Regardless of one or two, the packaged LEDs are installed on the circuit board, and there are multiple layers of thermal resistance interfaces for heat conduction and heat dissipation, resulting in poor heat dissipation

At present, the design scheme of using double-sided copper foil urea or fiberboard or semi-fiberboard as the bracket and circuit substrate for LED die-bonding, and directly packaging it into a light source for high-power LED fluorescent lamps has not been disclosed in relevant literature.

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