High protection LED (light-emitting diode) marker lamp

Abstract

The invention discloses a high protection LED (light-emitting diode) marker lamp which comprises a lamp body shell. An LED circuit board is arranged inside the lamp body shell, a lampshade is mounted at the front end of the lamp body shell, and a power wire connected with the LED circuit board is arranged at the rear end of the lamp body shell. An LED light source replaces a traditional tungsten halogen lamp and a traditional incandescent lamp, the protection level of the whole LED marker lamp is improved while illumination is achieved by the aid of the lampshade mounted at the front end of the lamp body shell, failure caused by water entering the marker lamp is avoided when a locomotive runs at a high speed, and running safety of the locomotive is ensured. In addition, as the service life of an LED lamp is not shorter than 20000h, the service life of the whole LED marker lamp is prolonged, and maintenance frequency is decreased.

Description

technical field [0001] The invention designs an LED sign lamp, in particular relates to a high-protection LED sign lamp. Background technique [0002] Sign lights are an important part of the safe operation of high-speed EMUs and locomotives. They use red (or white) lights to show the train's running route and direction. [0003] Halogen tungsten lamps and incandescent lamps are mostly used in the sign lights of modern high-speed EMUs, locomotives and locomotives, due to the short life of halogen tungsten lamps and incandescent lamps. After the bulb is burned out, the bulb needs to be replaced. For the convenience of replacement, a structure that is convenient for disassembly and assembly must be adopted. According to the standard TB / T2325-2006, the domestic EMU and locomotive marking lights are IP43, and the commonly used standards for foreign EMUs UIC534-2002 and UIC532-1991 have no protection level requirements. At present, the existing domestic sign lights can only com...

AI Technical Summary

Problems solved by technology

my country has a large span of latitude and longitude and complex climate conditions. There are a large number of lines in China that are long-term operations, such as: Wuhan-Guangzhou, Beijing-Shanghai, and Guangxi. Affect vehicle operation safety

The opening and closing mechanism of the CRH series EMU and the front end of the locomotive is not a sealed structure, and the sign lights may enter water when the car is running at high speed, causing malfunction, thereby reducing the safety of the vehicle operation

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