A light-emitting diode

Abstract

The invention belongs to the technical field of diodes, specifically a light-emitting diode; it includes a PN junction and two pins installed at the bottom of the PN junction, and the two pins are respectively the positive pole and the negative pole of the PN junction; the pins The middle part is provided with a main annular groove along the horizontal direction, and a secondary annular groove is provided on the pin at the main annular groove; There is a mortar layer on the outside of the pin at the position. When the length of the pin needs to be shortened before welding, just twist the outer tube to loosen the outer tube and the mortar layer, and then remove the outer tube from the pin. Pull out, the mortar layer will fall off slowly by kneading, and then the sub-annular groove will leak out, and then due to the opening of the sub-annular groove, the pins here are thinner, and the pins can be broken from the sub-annular groove at this time. Furthermore, the length of the pin can be shortened, and the pin does not need to be moved after the welding is completed, thereby ensuring the firmness of the welding place.

Description

technical field [0001] The invention belongs to the technical field of diodes, in particular to a light-emitting diode. Background technique [0002] Light-emitting diode is a commonly used light-emitting device, which releases energy and emits light through the recombination of electrons and holes. It is widely used in the field of lighting. Light-emitting diodes can efficiently convert electrical energy into light energy, and have a wide range of uses in modern society, such as lighting, flat panel displays, medical devices, etc.; this electronic component appeared as early as 1962, and it could only emit low-level red light in the early days. Later, other versions of monochromatic light were developed. Today, the light that can be emitted has covered visible light, infrared rays and ultraviolet rays, and the luminosity has also increased to a considerable luminosity. The use was also used as indicator lights, display panels, etc. from the beginning; with the continuous a...

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Problems solved by technology

[0003] There are also some technical solutions about diodes in the prior art. For example, the Chinese patent application number 2013101360141 discloses a diode frame structure in forward series, which divides the core board into two independent regions. Form a 45-degree recess with both sides, reduce the bending size of the frame, and widen and lengthen the pin area of ​​the middle rib, which not only greatly saves the space of the integrated circuit, but also reduces the soldering points of the pins, and also reduces the virtual soldering and desoldering risk, which effectively increases the reliability of the product. It is easy to be plastic-packed and stored. However, in order to apply to thicker circuit boards, the length of the pins is longer. However, when encountering thinner circuit boards, the After the pins are welded on the circuit board, it is necessary to move the longer part of the pins to the welding position to prevent the longer pins from interfering with other electronic components. When the pins are pulled, it is easy to loosen the solder joints. In view of this, the present invention provides a light-emitting diode, which can quickly change the length of the pin when the circuit board is thin, prevent the pin from interfering with other electronic components, and ensure the firmness after welding

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