Circuit structure of media screen

Abstract

The invention discloses a circuit structure of media screen. The circuit structure comprises a power supply, a leakage protector, a transformer and a main fuse; and a right end of the main fuse is connected with fire wires of a plurality of three-hole sockets and left ends of a plurality of sub fuses, the right end of the main fuse is connected to an L input end of the media screen through a first single-pole double-throw switch group, a grounding end of each three-hole socket and an E input end of the media screen are all connected with a ground line of the power supply, a right end of each sub fuse is connected with a second single-pole double-throw switch group connected with a left end of a lamp bulb, a right end of each lamp bulb is connected with a lower output end of the transformer, and the lower output end of the transformer is further connected with zero line ends of the three-hole sockets and an N input end of the media screen. The circuit structure is simple, and overload and short-circuit protection capabilities of a circuit are improved; and, furthermore, the media screen or the lamp bulbs can be convenient to turn on or off through control at different places.

Description

technical field [0001] The present invention relates to the technical field of media screens, in particular, to a circuit structure of a media screen. Background technique [0002] At present, media screens are installed in many places to play related information or advertisements. For example, the media screens in the square in front of the railway station are used to play passengers' train information, etc. Media screens are also installed in the washrooms of some places. , This type of media screen is mainly used to play advertising information. At present, the circuit structure of this type of media screen is complex, and the overload protection and short circuit protection functions of the circuit are weak; It can be inconvenient to turn off the media screen at night or to turn off the lights during the day. SUMMARY OF THE INVENTION [0003] In view of the above-mentioned technical problems in the related art, the present invention proposes a circuit structure of a m...

AI Technical Summary

Problems solved by technology

[0002] At present, media screens are installed in many places to play relevant information or advertisements. For example, the media screens in the square in front of the railway station are used to display the train number information of passengers, etc. Media screens are also installed in the washrooms of some places. , this type of media screen is mainly used to broadcast advertising information. At present, the circuit structure of this type of media screen is complex, and the overload protection and short circuit protection functions of the circuit are weak; in addition, when the media screen is installed indoors where the exit and entrance are not at the same place, Turning off media screens at night or turning off lights during the day can be inconvenient

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