LED lamp bead with reflection cup

Abstract

The invention discloses an LED lamp bead with a reflection cup, which comprises a cup bowl, wherein the cup bowl is internally provided with a bottom wall and a side wall, the bottom wall in the cup bowl is provided with positive and negative electrode bonding pads, an LED chip is arranged in the cup bowl, the positive electrode and the negative electrode of the LED chip are electrically connectedwith the positive electrode bonding pad and the negative electrode bonding pad respectively, the positive electrode bonding pad and / or the negative electrode bonding pad are / is provided with a lightreflecting part extending to the side wall of the cup bowl, the light reflecting part is of a connected structure with the positive electrode bonding pad and / or the negative electrode bonding pad, andat least the surface of the light reflecting part is made of a light reflecting material. Due to the fact that the light reflecting part which extends along the side wall of the cup bowl and is attached to the side wall of the cup bowl is formed by integrally bending a plate, light irradiated to the inner wall of the cup bowl by the LED chip can be reflected by the light reflecting part, the heatsink area and the heat dissipation area are increased, the temperature of the LED lamp bead is reduced, and the service life of the LED lamp bead is prolonged more effectively.

Description

technical field [0001] The invention relates to an LED lighting fixture, and specifically discloses an LED lamp bead with a reflective cup. Background technique [0002] refer to figure 1 . The existing LED lamp bead includes a bracket 01 and an LED chip 02 installed in the bracket 01 . The bracket 01 has a plastic injection molded cup and bowl 04, and the bottom wall of the cup and bowl 04 is provided with positive and negative pads 05. The LED chip 02 is fixed in the cup and bowl 04 , and its positive and negative poles are electrically connected to the positive and negative pads 05 respectively. Because the cup and bowl 04 are made of plastic with poor reflective properties, the light emitted by the LED chip 02 is difficult to reflect when it hits the inner wall of the cup and bowl 04, resulting in low light efficiency from the LED lamp beads; at the same time, a large amount of unreflected light will be converted into heat energy , causing the temperature of the LED ...

AI Technical Summary

Problems solved by technology

Because the cup and bowl 04 are made of plastic with poor reflective properties, the light emitted by the LED chip 02 is difficult to reflect when it hits the inner wall of the cup and bowl 04, resulting in low light efficiency from the LED lamp beads; at the same time, a large amount of unreflected light will be converted into heat energy , causing the temperature of the LED lamp bead to be too high, accelerating the aging of the LED chip 02 and shortening the life of the LED

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