Ultraviolet LED sterilization and disinfection device and packaging preparation method thereof

Abstract

The invention discloses an ultraviolet LED sterilization and disinfection device and a packaging preparation method thereof, and relates to the technical field of ultraviolet disinfection. The devicecomprises a ceramic substrate, a groove is formed in the ceramic substrate, an ultraviolet light source is installed at the bottom of the groove, an infrared detector is arranged on one side of the ultraviolet light source, and the ultraviolet light source and the infrared detector are connected with a circuit layer. A glass cover plate is laid at the top of the ceramic substrate, first metal layers are arranged at the bottoms of the two ends of the glass cover plate, second metal layers are arranged at the positions, located at the tops of the two ends of the groove, of the ceramic substrate,and the first metal layers and the second metal layers are fixedly connected through solder layers. The ultraviolet LED sterilization and disinfection device provided by the invention is packaged byadopting a reflow soldering bonding technology, so that the welding effect of the glass cover plate and the ceramic substrate is good, and the airtightness of device packaging is improved.

Description

technical field [0001] The invention relates to the technical field of ultraviolet disinfection, in particular to an ultraviolet LED sterilization and disinfection device and a packaging preparation method thereof. Background technique [0002] Ultraviolet disinfection technology is based on modern epidemiology, medicine and photodynamics. It uses specially designed high-efficiency, high-intensity and long-life UVC band ultraviolet light to irradiate flowing water to sterilize various bacteria, viruses, parasites, algae and other bacteria in the water. Other pathogens are killed directly. The working principle is to destroy the molecular structure of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) of microbial cells, causing growth cells and (or) regenerative cells to die, and achieve the effect of sterilization and disinfection. Coronaviruses are all single-stranded positive-sense RNA viruses, so ultraviolet light in the 240nm-280m band is the most effective band fo...

AI Technical Summary

Problems solved by technology

Compared with the traditional ultraviolet light source (high-pressure mercury lamp), the hand-held UV sterilization and disinfection light source has the advantages of small size, high efficiency, long life, and portability. The existing ultraviolet chip packaging generally uses epoxy resin for packaging, but due to the Resin is prone to aging under long-term exposure to ultraviolet light, which affects the light extraction efficiency of LEDs, thereby affecting the efficiency and reliability of devices

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