Dual-ballast automatic switching device and electrodeless lamp with same

Abstract

The invention discloses a dual-ballast automatic switching device and an electrodeless lamp with the same. Two ends of a first time relay KT1 are respectively connected with a live line and a null line, one end after a normally-closed contact KV-1 of a voltage relay is connected in series with an undervoltage relay KA is connected with the live line of a power supply, the other end is connected with a live line terminal of an input end of an electronic ballast A, one end after a normally-open contact KT1-1 of the first time relay, a normally-closed contact KA-1 of the undervoltage relay and a normally-open contact KT2-1 of a second time relay are sequentially connected in series is connected with the live line of the power supply, the other end is connected with the live line terminal of an input end of an electronic ballast B, one end after the voltage relay KV and the second time relay KT2 are connected in parallel is connected between the normally-closed contact KA-1 of the undervoltage relay and the normally-open contact KT2-1 of the second time relay, and the other end is connected with the null line of the power supply. By the device, the service lifetime of the electrodeless lamp can be prolonged, meanwhile, the problems of mistake protection on the electronic ballasts, overheating burning and the like are solved, and the maintenance cost is reduced.

Description

technical field [0001] The invention relates to the technical field of electrodeless lamps, in particular to an automatic switching device for double ballasts and an electrodeless lamp with the device. Background technique [0002] Electrodeless lamp is a new type of light source combining electromagnetic induction and gas discharge. It has the characteristics of high light efficiency and long life. Since the electrodeless light source has no filament and no electrode, the service life of the product is more than 60,000 hours. But it actually means that the service life of the lamp is 60000h. In practical applications, the electronic ballast of the electrodeless lamp cannot reach this life span in most cases, so the electrodeless lamp often fails to light up due to various other reasons before the service time of 60000h is reached. After analysis, the main reason is that the electronic ballast cannot work normally due to various factors (such as the sudden impact of the ex...

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Problems solved by technology

After analysis, the main reason is that the electronic ballast cannot work normally due to various factors (such as the sudden impact of the external environment, the life of its own components, etc.), so that the electrodeless lamp that could have reached an ideal life is not Not up to the rated service life

Since the electrodeless lamp is mostly used in some places where maintenance is difficult and the maintenance cost is high, such as for street lighting and high factory building lighting, etc., every time there is a problem with the electrodeless lamp and it is only a problem with the electronic ballast, it is generally necessary to replace the electronic ballast. Maintenance is carried out by the method of flow device, because its installation places are mostly in high places, so the maintenance wastes material resources, financial resources, manpower and time, resulting in a great waste, and increasing the extinguishing time of the electrodeless lamp, affecting people's life and work

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