White-light LED light source with sterilization effect and manufacturing method thereof

Abstract

The invention discloses a white-light LED light source with a sterilization effect, which comprises a PCT bracket with heat sink, a UV wafer, a blue-light wafer, a gold wire and fluorescent glue, wherein the UV wafer and the blue-light wafer are fixed in the PCT bracket, the UV wafer is connected with the blue-light wafer in a welded mode through the gold wire, and the fluorescent glue is coated inside the PCT bracket and covers the UV wafer and the blue-light wafer. The invention further discloses a manufacturing method of the white-light LED light source with the sterilization effect. The PCT bracket with the heat sink is adopted, the heat sink ensures that a device has sufficient heat dissipation performance, a PCT material is better in UV resistant performance compared with common PPA materials, and the UV resistant performance of the device is improved; and UV resistant wafer fixing glue and UV resistant potting silica gel are adopted, so that the UV resistant performance of the device is improved. According to the invention, UV light is contained in white light in the device, and light emission is uniform. Meanwhile, the white-light LED light source has functions of sterilization and lighting, does not need to carry out light source matching, is convenient to use and has reliable and stable performance at the same time.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to a white LED light source with bactericidal effect and a manufacturing method thereof. Background technique [0002] With the continuous development of society and the continuous improvement of the level of science and technology, people pay more and more attention to the energy saving and convenient use of products in daily life, and LED sterilization lighting products are widely used. At present, the LED germicidal lighting products on the market adopt the design method of mixing light with UVLED ultraviolet light source and white light LED light source. The circuit control follows two methods: one is to control the two light sources separately, and the other is to The two light sources are combined in series and then controlled. Sterilizing lighting products using two light sources need to pair and mix the two light sources. In addition to the inconvenience of manufact...

AI Technical Summary

Problems solved by technology

The germicidal lighting products that use two light sources need to pair and mix the two light sources. In addition to the inconvenience of manufacturing, the product is also prone to color spots, uneven illumination, and color temperature shifts that are not within the conventional color temperature requirements.

[0003] However, ordinary LED lighting sources currently on the market have weak UV resistance. Under long-term exposure to ultraviolet light, LED white light sources are prone to yellowing, glue cracking and even dead lights.

Therefore, for LED sterilization lighting products designed with two light sources, white LED light sources are prone to failure under long-term exposure to purple light, resulting in unstable product performance

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