Highly integrated high light efficiency thermoelectric separation power type light emitting diode (LED) and encapsulating method thereof

Abstract

The invention discloses a highly integrated high light efficiency thermoelectric separation power type light emitting diode (LED). The LED comprises a paster type bracket, an LED chip and gold threads, wherein a concave cup is formed on the upper surface of the bracket, electric conducting channels which are independently communicated into two sides of the concave cup are arranged at left and right sides of the bracket, the bottom surface of the bracket is provided with a heat conducting channel of which the middle part is communicated to the middle part of the concave cup, the LED chip is stuck with the heat conducting channel through heat conducting insulation paste, two poles of the LED chip are respectively electrically connected with the electric conducting channel through the gold threads, and a fluorescent colloid which is formed by mixing silica gel and fluorescent powder is filled and sealed in the concave cup. Because of the design of thermoelectric separation, heat dissipated when the LED chip works can be independently conducted to a heat dissipating pillar in time, and the impacts of heat on the reliability of second spot welding and the service life of the chip are reduced. With the design of polycrystal serial and parallel integration and thermoelectric separation, the LED disclosed by the invention has the technical effects of high light efficiency, independent heat and electric channels, simple structure, good heat dissipation effect and the like.

Description

technical field [0001] The invention relates to a light-emitting diode, more specifically, to a high-integration and high-efficiency thermoelectric separation power type light-emitting diode. Background technique [0002] With the advancement of electronic technology, the use of LED lighting fixtures is becoming more and more common. Because LEDs emit light using the luminous properties of semiconductors after they are energized, LEDs are green and environmentally friendly light sources with long life, low power, and no radiation, so they are widely used. It is used in backlight, display screen, traffic signal light, urban lighting and other fields. In the future, it will replace incandescent lamp and energy-saving lamp lighting application and become a new generation of lighting source. It is widely used in indoor and outdoor general lighting and special lighting. [0003] Traditional light-emitting diodes use high-power chips to achieve high brightness. The current high-po...

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Problems solved by technology

[0003] Traditional light-emitting diodes use high-power chips to achieve high brightness. The current high-power diode packaging technology is mainly single-chip high-power packaging. Although it can obtain high luminous flux, it has low luminous efficiency and high heat generation. , the heat generation is concentrated on one chip, which has a great impact on the reliability and life of the chip. At the same time, the thermal channel and the electrical channel of the current light-emitting body diode structure share the same channel, and some designs do not have independent heat conduction. channel, and the electrical channel mainly connects the positive and negative electrodes of the chip with the solder feet of the bracket by bonding gold wires, so the heat emitted by the chip will have a greater thermal impact on the diode circuit structure, affecting the welding of the gold wire and the bracket Reliability, and because there is no independent heat conduction channel, it will also have a great impact on the light decay of the chip

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