Fluorescent lamp fault detection automatic power-off device and method thereof

Abstract

The invention provides a fluorescent lamp fault detection automatic power-off device which is connected with a fluorescent lamp module. The fluorescent lamp module is connected with city power. The fluorescent lamp fault detection automatic power-off device comprises a control unit, a switch unit and a current detection unit. The switch unit comprises a switch part and a coil part. The switch part is coupled with the city power. The coil part is coupled with the control unit through a drive circuit. One end of the current detection unit is respectively coupled with the fluorescent lamp module and the switch part. The other end of the current detection unit is coupled with the control unit. A fluorescent lamp startup circuit which is provided with the fluorescent lamp fault detection automatic power-off device which is provided by the invention can detect whether a fluorescent lamp tube or a starter is damaged in real time, and automatically carry out power-off on the fluorescent lamp tube. The invention further provides a fluorescent lamp fault detection automatic power-off method.

Description

technical field [0001] The invention relates to an automatic power-off device, in particular to an automatic power-off device for fluorescent lamp failure detection and a method thereof. Background technique [0002] According to, lighting equipment is an indispensable simple electrical appliance for modern people. There are many types of it, such as fluorescent lamps, light bulbs, and LED lights. However, the most popular, most practical and cheapest are still fluorescent lamps. There are straight tube lamps, spherical lamps, 3U lamps or Regent lamps. Fluorescent lighting equipment is mostly used in school classrooms, office buildings, hospitals, department stores, and large underground parking lots. In order to have sufficient lighting brightness, multiple fluorescent lamps are used at the same time. [0003] However, the damage of the fluorescent tube is gradual, and it does not go out immediately after being damaged. Therefore, it is often found that the faulty fluoresc...

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Problems solved by technology

[0003] However, the damage of the fluorescent tube is gradual, and it does not go out immediately after being damaged. Therefore, it is often found that the faulty fluorescent tube keeps flickering. The method adopted by some users is to ignore it and let the fluorescent tube flicker until the filament is completely damaged and extinguished. This negative approach has many disadvantages:

[0004] 1. Affect the visual and auditory senses: Flickering fluorescent lamps will destroy the original comfortable lighting environment. Users will be disturbed by light and noise in the environment where the lights are flickering, and they will easily feel dizzy and uncomfortable, which will cause people's physical discomfort.

[0005] 2. Waste of power energy: Flickering of fluorescent lamps is a kind of repeated lighting action, which requires continuous consumption of power energy. However, flickering lights can be regarded as useless lighting, so the use of power energy is just unnecessary waste

[0006] 3. Threat to life and safety: when the fluorescent lamp fails to flicker, the high temperature of the filament at both ends may cause a fire, threatening the life of the user

[0007] 4. Reduce the life of the components: when the fluorescent lamp is turned on, the starter and the ballast must function. The failure of the fluorescent lamp keeps flickering and repeated lighting, so that the starter and the ballast are constantly activated and overused, thus reducing their service life.

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