Ultraviolet sterilization device, sterilization method thereof and air conditioning unit

Abstract

The invention provides an ultraviolet sterilization device, a sterilization method thereof and an air conditioning unit. The ultraviolet sterilization device comprises a plurality of LED light sourcesand a rotating body, each LED light source comprises an LED substrate and a plurality of LED lamp beads which are arranged on the LED substrate and emit ultraviolet light, the rotating body is provided with at least three surfaces which are arranged around a rotating shaft, and at least one LED light source is arranged on each surface, so that the LED light sources are driven by the rotating shaft to rotate around the rotating shaft, 360-degree rotating radiation of the LED light sources is realized, and the radiation range of the ultraviolet sterilization device is expanded; and each surfaceof the rotating body is provided with at least one LED light source, and each LED light source is provided with the multiple LED lamp beads, so that the radiation intensity distribution of ultraviolet light on each surface of the rotating body can be more uniform, the radiation intensity distribution of ultraviolet light on a rotating path can be more uniform, and the radiation intensity distribution uniformity of the ultraviolet sterilization device is improved.

Description

technical field [0001] The invention relates to the technical field of ultraviolet sterilization, and more specifically, relates to an ultraviolet sterilization device, a sterilization method thereof, and an air-conditioning unit. Background technique [0002] The application of ultraviolet sterilization technology on air conditioners is becoming a trend. At present, there are two kinds of ultraviolet sterilization schemes for air conditioners on the market. One is to install the traditional quartz ultraviolet mercury lamp inside the air conditioner, and the other is to use UVC lamps that emit ultraviolet light. -LED lamp beads are installed inside the air conditioner. [0003] Because the quartz ultraviolet mercury lamp has the advantages of uniform distribution of ultraviolet radiation, no blind area and no dead angle in the radiation area, it can realize 360° ultraviolet radiation sterilization in its installation area. However, because the lifespan of the quartz ultravi...

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Problems solved by technology

However, because the life of the quartz ultraviolet mercury lamp is only about 5,000 hours, the quartz ultraviolet mercury lamp still has disadvantages such as short service life, long start-up time, easy pollution of the environment due to mercury content, and high maintenance costs.

[0004] Although UVC-LED lamp beads have the advantages of energy saving, environmental protection, long life, and fast start-up speed, their radiation is unilateral and directional, that is, they only radiate in the positive direction of LED lamp beads. Therefore, UVC-LED lamp beads Beads cannot achieve 360° radiation without blind spots and dead angles

[0005] Although the selection of UVC-LED lamp beads with a large radiation angle, such as lamp beads with a luminous angle of 120°, can expand the radiation range to a certain extent, it still has the problem of uneven distribution of radiation intensity in the radiation space, that is, the radiation The radiation density in the central area is the highest, and the radiation density in the surrounding area is low, and the farther away from the central area, the lower the radiation density

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